STV2246

STV224X_09 STMICROELECTRONICS | Alldatasheet

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September 2009 Doc ID 9771 Rev 4 1/86 STV224X, STV228X, STV223X I²C bus-controlled multistandard single chip TV processor ■ I²C Bus Control ■ PIF Circuit with PLL Demodulation (Positive and Negative Video) ■ SIF Circuit with QSS Structure, FM Demodulation and AM Demodulation for France ■ Intercarrier Capability ■ Built-in Sound Bandpass ■ Sound Subcarrier Output for Stereo Chassis (FM, NICAM) ■ Audio FM wide mode ■ Audio Switch and Volume Control (Mono Chassis) ■ AVL (Automatic Volume Levelling) ■ Integrated Chroma Filters and Luma Delay Line ■ Integrated Chroma Delay Line ■ Video Switch (3 CVBS In, 2 CVBS Out) ■ SVHS Switch (Y Combined with CVBS3 Input) ■ OSD RGB Inputs ■ External RGB/YCrCb Inputs or YUV Interface ■ PAL / SECAM / NTSC Chroma Demodulators ■ Auto Flesh Control Capability in NTSC mode ■ South America Capability (PAL-M / PAL-N / NTSC) ■ Chroma Subcarrier Output ■ Black Stretch Circuit ■ Peaking Circuit ■ Automatic Cut-off Current Loop ■ Manual Cut-off possible for low-cost

applications

■ Two Horizontal Deflection PLLs ■ Vertical Countdown ■ Half Contrast ■ APR (Automatic RGB Peak Regulation) or RGB Peak Limitation Function ■ White Insertion ■ Copy Protection mode ■ Wide Line Blanking mode ■ SAW Filter Switch Control (TQFP64 package only) ■ Very Few External Components Device summary Device Package Application STV2246 SHRINK56 PAL/NTSC Intercarrier STV2236 TQFP64 PAL/NTSC Intercarrier STV2286 SHRINK56 PAL/NTSC Intercarrier STV2247 SHRINK56 PAL/NTSC QSS/Intercarrier STV2237 TQFP64 PAL/NTSC QSS/Intercarrier STV2248 SHRINK56 PAL/SECAM/NTSC QSS/Intercarrier AM STV2238 TQFP64 PAL/SECAM/NTSC QSS/Intercarrier AM STV2249 SHRINK56 PAL/SECAM/NTSC QSS/Intercarrier STV2239 TQFP64 PAL/SECAM/NTSC QSS/Intercarrier TQFP64 (14 x 14 x 1.4 mm) (Full Thin Plastic Quad Flat Pack) ORDER CODE: STV223XH SHRINK56 (Plastic Package) ORDER CODE: STV224XH/8XH Obsolete Product(s) - Obsolete Product(s)

Obsolete Product(s) - Obsolete Product(s) Table of Contents

Obsolete Product(s) - Obsolete Product(s) Table of Contents

Obsolete Product(s) - Obsolete Product(s) Table of Contents

Obsolete Product(s) - Obsolete Product(s) Table of Contents

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

signed with very few external components and no manual adjustments.

1.2 PIN DESCRIPTION

Table 1. Pin Configuration

1 EXT RGB Input (OSD) X

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - GENERAL DESCRIPTION 19 27 GND2 Video/Luma Ground 20 28 CVBSIN2 External Video Input 21 29 BS Black Stretch Capacitor 22 34 Y/CVBSIN3 Y(SVHS) or CVBS3 External Input 23 35 CHR Chroma (SVHS) Input 24 36 APR Automatic RGB Peak Regulation 25 37 BEXT/Cb External Blue Input or external Cb Input (Please refer to Note 2) 26 38 GEXT/Y External Green Input or external Y Input (Please refer to Note 2) 27 39 REXT/Cr External Red Input or external Cr Input (Please refer to Note 2) 28 40 FBEXT External Fast Blanking Input (Please refer to Note 3) 29 41 NTBC/CVBSOUT1 Not To Be Connected or CVBS Output 1 (Please refer to Note 4) 30 43 BOUT Blue Output 31 44 GOUT Green Output 32 45 ROUT Red Output 33 46 I CATH Cathode Current Measurement Input 34 47 BOSD OSD Blue Input 35 48 GOSD OSD Green Input 36 49 ROSD OSD Red Input 37 50 FBOSD/HC OSD Fast Blanking Input / Half Contrast 38 52 XTAL3/BTUN 3.5X MHz Crystal or Bell Filter Tuning Capacitor 39 53 XTAL2 3.5X MHz Crystal 40 54 XTAL1 4.43/3.5X MHz Crystal 41 55 CLPF Chroma PLL Filter 42 56 X1/VAMP/CHROUT XTAL1 Control Pin, Vertical Amplitude DAC Output and Chroma Reference Signal Output 43 57 GND1 Chroma/Scanning Ground 44 58 CVBSOUT2 Second Video Switch Output 45 59 V CC1 Chroma/Scanning Power Supply (8 V) 46 61 BCL/SAF Beam Current Limiter Control Voltage and Safe- ty Input (XRAY) 47 62 VERT Vertical Output Pulse 48 63 HOUT Horizontal Output Pulse 49 64 LFB/SSC Line Flyback Input and Super-Sandcastle Out- put 50 1 SLPF Scanning PLL Filter 51 2 SCL I²C Bus Clock Input 52 3 SDA I²C Bus Data Input 53 4 V CCD Digital Supply Voltage (5 V) 54 5 GNDD Digital Ground 55 6 AUDIOOUT Main Audio Output 56 7 FMCAP FM Demodulation Capacitor - 30 NC Connection to GND recommended PIN Symbol DescriptionSTV224XH/228XH STV223XH SDIP56 TQFP64

Note 1: Input/Output not available in STV2246H/86H versions. This pin must not be connected. Note 3: FBEXT to be connected to ground when not used. Note 4: CVBS output 1 on pin 29 (SDIP56), if register 1Dh = 07h. Figure 1. STV224XH/228XH Pinout (SDIP56) Note: Underlined pin functions are optional.

Figure 2. STV223Xh Pinout (TQFP64)

Figure 3. STV2246H (SDIP56) Block Diagram

4 VREF

Figure 4. STV2247H (SDIP56) Block Diagram

Figure 5. STV2248H (SDIP56) Block Diagram

Figure 6. STV2249H (SDIP56) Block Diagram

Figure 7. STV2286H (SDIP56) Block Diagram

Figure 8. STV2236H (TQFP64) Block Diagram

Figure 9. STV2237H (TQFP64) Block Diagram

Figure 10. STV2238H (TQFP64) Block Diagram

Figure 11. STV2239H (TQFP64) Block Diagram

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - MAIN FEATURES

2 MAIN FEATURES

■ I²C Bus control (Read and Write modes). ■ PLL PIF demodulator, bus-controlled VCO alignment. ■ Positive and negative IF modulation. ■ Digital AFC. ■ Tuner-delayed AGC output. ■ White and Black Spot cancellation. ■ SIF with QSS structure. ■ Intercarrier capability. ■ Built-in sound bandpass. ■ Multistandard PLL FM Demodulator (4.5, 5.5, 6.0, 6.5 MHz). ■ Audio FM Wide mode (BGDKI): Capable of demodulating ±400 kHz overmodulated audio signals, to be used in QSS architecture. ■ AM demodulator for France. ■ Sound subcarrier output for Stereo chassis: FM and NICAM carriers. ■ Audio switch for external audio input, Mono chassis. ■ Digital volume control. ■ Audio Mute. ■ Automatic Volume Levelling (AVL) on audio signal (internal or external audio). ■ Digital buffer for SAW filter switching. ■ Video switch, three Composite Video Broadcasting Signal (CVBS) inputs and two CVBS outputs (which can be used to drive a teletext decoder). ■ SVHS switch, Y input is combined with CVBS3 input. ■ Capability to output Y+C signal on second CVBS output. ■ OSD RGB analog inputs, fast blanking detection on fast blanking OSD pin, contrast control capability. ■ Half-contrast control pin. ■ External analog RGB inputs with contrast and saturation control (external RGB matrixed in YUV). External analog YCrCb inputs can be connected to the same inputs. In this case, the sync signal must be sent to the CVBS input, and External YCrCb mode must be selected through the I²C bus. ■ Y,U,V inputs outputs: Y,U,V inputs/outputs for the use of enhanced picture ICs. ■ Integrated chroma filters (trap, bandpass, bell) with automatic alignment. ■ Integrated luminance delay line. ■ Adjustable peaking on the luminance signal with coring function. ■ Black Stretch circuit. ■ Automatic RGB peak regulation (APR) or RGB peak limitation. ■ PAL/SECAM/NTSC color decoder with automatic identification of standards. ■ Integrated chroma delay line. ■ Full integrated SECAM decoder. ■ Hue control, 2 selectable matrices in NTSC mode. ■ Automatic Flesh Control circuit with two selectable characteristics (normal and wide). ■ Automatic Color Control (ACC) overload circuit. ■ Chroma subcarrier output which could be used to drive a comb filter circuit. ■ Automatic digital cut-off current loop with warm- up detection circuit. ■ White point (drive) and cut-off point adjustments. ■ Manual cut-off capability. ■ Beam current limiter control stage. ■ High-performance sync pulse separator. ■ Horizontal synchronization with two phase- locked loops. ■ Integrated VCO, auto-calibration using the chroma crystal reference frequency. ■ Automatic time constant selection for the first PLL, three selectable time constants. ■ Video identification circuit (independent from PLL1). ■ Noise detector circuit. ■ Vertical countdown circuit. ■ Automatic 50/60 Hz selection circuit. ■ Blanking and inserted cut-off pulses position adapted to standard (50 or 60 Hz). ■ Long blanking mode capability in 60 Hz (same blanking as with 50 Hz standard). ■ De-interlace capability. ■ Horizontal starting circuit with soft-start capability. ■ Horizontal and vertical position adjustments, vertical amplitude control voltage (combined with chroma subcarrier output). ■ Oversize Blanking capability on OSD Fast Blanking input.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

3 FUNCTIONAL DESCRIPTION

The STV224XH/228XH is an integrated device that processes PIF, SIF, Video and Chroma sig- nals while scanning for PAL, SECAM and NTSC standards. It includes a base band chroma delay line, Video, SVHS and audio switches.

3.1 DETAILED FEATURES

3.1.1 Power Supplies

V CCIF: 5 V power supply dedicated to IF proces- sors. GNDIF is the ground reference of these parts. VCCD: 5 V power supply dedicated to I²C bus and digital parts. GNDD is the ground reference of these parts. VCC1: 8 V power supply for video switches, scan- ning part and the chroma decoder. GND 1 is the ground reference of all these functions. VCC2: 8 V power supply for the luminance, RGB processing parts audio switch and internal CVBS output. GND2 is the ground reference of these parts.

3.1.2 Picture Intermediate Frequency (PIF)

– AGC amplifier. – PLL synchronous demodulator. Bus-controlled VCO for integrated tuning of the external LC res- onator. For a 38.9 MHz VCO, the LC coil specifi- cation has to be: C = 39pF, f = 44 MHz ±2% (LC not connected). For a 33.9 MHz VCO (L’), the VCO can be switched via the bus control. – Digital AFC via bus. – IF Automatic Gain Control (AGC) Negative modulation: top sync regulation, regu- lation of overmodulated signals (overmodulation regulation circuit enabled through bus control). Positive modulation: main regulation on white level with black level limitation. – Tuner-delayed AGC with bus control for AGC gain and threshold. Tuner AGC output status can be read in I²C bus read register. – CVBS output with two bus-controlled ampli- tudes. CVBS output at 2 V PP if external sound trap is not connected (QSS mode, for example). CVBS output at 2.3 VPP if external sound trap is connected.

3.1.3 Sound Intermediate Frequency (SIF) and

– QSS structure. – SIF Automatic Gain Control (QSS mode). – Built-in sound bandpass. – PLL FM Demodulator for 4.5, 5.5, 6.0 or 6.5 MHz carriers. The Sound Standard is selected by the MCU. The FM demodulator VCO is automatically calibrated using the chroma crystal VCO refer- ence frequency. The FM Demodulator VCO is automatically calibrated for all sound standards independently of the chroma crystal VCO fre- quency, which is either 4.4 MHz or 3.5 MHz. For each sound carrier frequency, the IC sends an indication of the sound subcarrier level to the MCU so that it can select the proper standard. In Normal mode, the maximum FM deviation is 200 kHz. In Audio FM Wide mode (BGDKI), the maximum FM deviation is 400 kHz. The Audio FM Wide mode of the STV224XH must be used in QSS applications only, using standard specific SAW filters (DK SAW filter or BG SAW filter). – The sound subcarrier level is valid when the FM Demodulation VCO is calibrated. This informa- tion can be read via the I²C Bus. – Bus controls for FM de-emphasis (50 or 75 µs) and FM deviation ±25 or ±50 kHz). – AM demodulator. – Sound demodulator output: either an AM or FM signal can be the output for the Mono chassis – Sound subcarriers for the Stereo chassis.

3.1.4 Audio Switch

– One SCART switch. – Bus-controlled volume and mute. Zero-crossing function on volume control. – Automatic Volume Levelling (AVL) function can be enabled via the I²C bus. – AVL status (Min. or Max. AVL Gain) can be read in I²C bus register. – The AM sound can be selected on the main au- dio output for the Stereo chassis.

3.1.5 Surface Acoustic Wave (SAW) Filter

– SAW filter switch control pin is available in the TQFP64 package. The SAW filter switch control pin is used to select the correct SAW filter char- acteristics (e.g.: M/N or BGDK characteristics). In a multi-standard chassis, two output voltages are selected via the I²C bus (low level voltage at 0.4 V Max., and high level voltage at 4 V Min.).

3.1.6 Video Switches

– Video switch with three CVBS inputs and one CVBS output (CVBSOUT1) which may be used to drive a teletext decoder.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION – A second CVBS output (CVBSOUT2) is able to output recombined Y+C signals. All switches are independently controlled. – SVHS switch, Y input is combined with CVBS 3 input. CVBS/SVHS modes can be selected ei- ther by bus control (software selection), or by sensing the DC voltage on the Chroma Input pin (hardware selection). If the Chroma Input is grounded, the CVBS mode is selected and the bus control is not active. If the DC level of the Chroma Input is higher than the SVHS threshold, then the bus control for the SVHS switch is ac- tive. Therefore, the SVHS mode can be selected by hardware using a special SVHS connector that includes a mechanical switch. In this type of application, the bus control is set to SVHS mode, and the CVBS mode is selected by grounding the Chroma Input pin.

3.2 DEFLECTION PART

3.2.1 Synchronization Separator

– Fully-integrated synchronization separator with a low pass filter, black level alignment of the CVBS input, and a 50% slicing level for the synchro- nized pulse amplitude.

3.2.2 Two Phase-Locked Loops (PLL)

Auto-calibrated VCO using the chroma crystal ref- erence. Crystal control pin X1/VAMP/CHROUT in- dicates the crystal reference value on Pin XTAL1. When a 4.43 MHz crystal is connected to Pin XTAL1, the output load on Pin X1/VAMP/ CHROUT must be greater than 80 k Ω. When a

3.58 MHz crystal is connected to Pin XTAL1, the

output load must be less than 10 kΩ. The first PLL locks the VC O to the video line fre- quency and the second PLL compensates the line transistor storage time. Three time constants for the first PLL. – [X,Y]: Line number referring to the internal line counter numbering system. The long time constant is used for normal opera- tion. The short time constant is automatically used dur- ing the VCR search mode and frame retrace when the frame pulse is outside [258,264] and [309,314]. The very long time constant is used when there is no video recognition (very good OSD stability). Time constants in normal operation (automatic se- lection of time constants): – 50 Hz input signal: short time constant: [306,21], long time constant: the rest of the field. – 60 Hz input signal: short time constant: [0,16], long time constant: the rest of the field.

3.2.2.1 Inhibition of the First PLL

The first PLL is inhibit ed from line 309 to line 4.5 (or 314) in 50 Hz mode and from line 258 to line 5.5 (or 264) in 60 Hz mode. The time constant val- ues are chosen by means of external components. – Possibility of forcing the short time constant dur- ing the all frame via the bus. – Possibility of forcing the long time constant dur- ing the all frame via the bus. – Possibility of forcing a very long time constant during the all frame via the bus. Generation of burst gate pulses and line frequency signals from the first PLL to drive the Chroma and Video circuits. The burst gate pulse is also sent to the super-sandcastle generator.

3.2.3 Video Identification

The video identification stat us is available in the output register of the I²C bus decoder (independ- ent from PLL1).

3.2.4 Vertical Synchronization

Frame synchronized window: – large window: [248,352] in AUTO mode, [248,284] in forced 60 Hz mode, [288,352] in forced 50 Hz mode. – narrow window: [309,314] in 50 Hz mode, [258,264] in 60 Hz mode. Field frequency selection windows: – [248,284] 60 Hz mode selection window. – [288,352] 50 Hz mode selection window. Frame blanking pulse adapted to standard: – from line 309 to line 21 in 50 Hz mode, – from line 258 to line 16 in 60 Hz mode.

3.2.5 Vertical Blanking

Long blanking mode: the end of frame blanking is line 21 both in 50 and 60 Hz modes. This mode is useful when the flyback time of the vertical output stage is longer than the 60 Hz blanking time. It is used to optimize the 50/60 Hz vertical amplifier ap- plication due to long frame blanking.

3.2.6 Vertical Oversize Blanking

The Oversized Blanking f unction is controlled by the voltage on the FBOSD pin. When the FBOSD voltage is between the first and the second thresh-

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION olds, the OSD RGB signals are selected. When the FBOSD voltage is greater than the second threshold (4 V blanking threshold), the RGB out- puts are blanked during the whole field, but not during inserted cut-off lines (the cut-off loop is al- ways active). The blanking feature, via the FBOSD input pin, enables Vert ical Oversize Blanking when a 4:3 picture is displayed on a 16:9 screen in Zoom mode. The picture outside the screen is blanked by the Oversize Blanking pulse supplied by the external vertical IC (STV9306).

3.2.7 Vertical Output

The Vertical output pulse is locked on a pulse that is twice the horizontal frequency to ensure perfect interlacing. The Vertical output pulse duration is 10.5 lines. Horizontal output pulse is a 28 µs line pulse on an open collector output.

3.2.8 Vertical Control

Bus-controlled DC output voltage for adjusting the vertical amplitude (pin VAMP). This voltage supply is used to adjust the slope of the vertical sawtooth generated by the external vertical booster. Bus-controlled vertical position (pin VERT). The high level of the vertical pulse is used to adjust the vertical position. The bus-controlled vertical output (pin VERT) low level voltage can be either 0.2 V or 2.0 V.

3.2.9 Horizontal Output

Start-up circuit: the horizontal output is at high lev- el (disabled) when V CC1 increases from 0 to 6.0 V and when VCCD has not reached 4 V. Soft mode circuit: it provides a softer operating horizontal output with a 75% duty cycle [t HIGH / (tHIGH +tLOW)]. This results in a smaller conducting time (16 µs instead of 28 µs). This mode is active at start-up until two frames af- ter the V CC2 reaches 75% of the V CC1. It is also active at shutdown when the V CC1 floats between 6 V and 5.4 V. And finally, this mode is used if the V CC2 drops below 75% of the VCC1. At shutdown, horizontal pulses are disabled when VCC1 is less than 5.4 V or when VCCD is less than 3.5 V. The horizontal output pulse may be disabled via the bus (force a high level on HOUT). The horizontal position adjustment is controlled via the bus.

3.2.10 Horizontal Control

Safety input on BCL Pin. When the BCL Pin is switched to ground, the horizontal output pulse is disabled and the inhibition of horizontal output pulse is maintained until V CC1 is less than 3 V (VCC1 power supply is switched off). The Safety function can be disabled via the I²C bus. When register 15hex data D7 is set to “1”, the Safety function is reset and no longer active.

3.2.11 Combined Line Flyback / Super-

Combined Line Flyback input and Super-Sandcas- tle output: The line blanking level is clamped at

3 V, the burst key pulse voltage is 5 V and vertical

pulse voltage is 2 V. The line pulse is extracted with a 2.5 V slicing level used for RGB line blank- ing and PLL2 control.

3.2.12 Line Blanking

Line blanking at RGB outputs is logical OR of line flyback pulse and internal line blanking pulse with a 12 µs width. In Wide Line Blanking mode, line blanking at RGB outputs is logical OR of line flyback pulse and in- ternal line blanking pulse with a 15.8 µs width. Wide line blanking is recommended when display- ing a 4:3 image on a 16:9 screen (horizontal scan- ning reduction).

3.2.13 Copy Protection Mode

This mode is used to improve the display of copy- protected video signals.

3.3 FILTERS

3.3.1 Integrated Trap Filter

Center frequency: – 4.43 MHz, 3.58 MHz for PAL and NTSC. – 4.25 MHz, for SECAM (-20 dB rejection between 4.1 MHz and 4.4 MHz). The chroma trap filter is switched off in SVHS mode, or in color standard search mode (standard not identified). In external YCrCb mode, the trap and luma delay can be switched off via the I²C bus.

3.3.2 Integrated Chroma Bandpass

Q = 3.5, Center frequency: 4.43 MHz, 3.58 MHz. The Bus Control Frequency Shift is used to opti- mize the chroma response for the video signal from the IF stage.

3.3.3 Integrated Bell Filter for SECAM

Q = 16, Center frequency: 4.286 MHz. The Bus Control Frequency Shift is used to opti- mize the chroma response for the video signal from the IF stage.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION

3.3.4 Integrated Luma Delay Line

Bandwidth: 8 MHz. The Luma Delay Line is automatically adapted to the chroma standard. For PAL BG and applica- tions without group delay compensation, a Luma Delay Shift of -140 ns can be selected via the I²C bus.

3.3.5 Filter Tuning

All filters are tuned via a reference phase-locked loop. The PLL is based on a trap filter, a phase comparator and an internal loop filter (capacitor). The reference signal is the continuous carrier wave from the Chroma VCO (4.43 MHz or 3.58 MHz). The PLL adjusts the center frequency of the trap until it equals the reference signal.The PLL tuning voltage is used to adjust all other inte- grated filters. The Bell fi lter is fine-tuned with a second PLL during the frame retrace. The Bell fil- ter tuning voltage is memorized on an external ca- pacitor (BTUN Pin).

3.4 VIDEO CIRCUIT

3.4.1 RGB Inputs

The RGB (OSD) input has pr iority over the exter- nal RGB input. The RGB (EXT) source is matrixed into YUV signals for color and contrast adjust- ments. The brightness is adjusted according to the internal and external RGB and OSD RGB signals. The Contrast Control regulates both external and internal RGB signals and has a maximum attenua- tion of -24 dB. It also regulates the OSD RGB sig- nal and its maximum attenuation is limited to -12 dB. The Contrast Control for RGB (OSD) input can be disabled via the bus. The brightness of the RGB (OSD) input varies according to the main brightness level. The RGB (EXT) insertion signal can be disabled or forced via the bus. A fast blanking detector on the external fast blanking input is able to detect the Fast Blanking pulse occurrence at each frame and then memorizes it until the end of the next frame. RGB Insertion is controll ed either by an external signal on the FBEXT pin or via the I²C bus. The Fast Blanking detection stat us is sent to the I²C bus read register.

3.4.2 YCrCb Mode

External YCrCb signals can be applied to RGB (EXT) inputs. Two input modes are possible: – The Sync signal is applied to CVBS input, the Y signal is applied to GEXT, the Cr signal is applied to REXT and the Cb signal is applied to BEXT. – The Y signal is applied to CVBS input, the Cr sig- nal is applied to REXT and the Cb signal is ap- plied to GEXT. The trap and luma delay line must be disabled by the I²C bus and peaking must be set to minimum. The OSD fast blanking input has several functions: OSD Insertion Control, RGB Output Blanking or Half Contrast Control.

3.4.3 Half-Contrast Control

A 6 dB gain reduction will be applied to the internal YUV signals when the half-contrast function is turned ON, and the voltage of the half-contrast in- put exceeds the threshold (0.7 V Typ.). The Half Contrast input is combined with the FBOSD input.

3.4.4 YUV to RGB Matrix

The PAL/SECAM matrix is provided and a specific NTSC matrix is used when demodulation angles are (0°,104°).

3.4.5 Automatic Cut-off Current Loop

The Cut-off Loop range is 2 V (the cut-off level of the RGB outputs is between 1.5 V and 3.5 V, 2.5 V Typ.). The cut-off current is measured se- quentially during the three lines after the internal frame blanking signal (the blue cathode current is measured first, then the green and red). The Leak- age cathode current is measured during frame blanking and is memorized on an internal capaci- tor. The Cut-off loop can be frozen via the bus. To prevent cut-off lines fr om being visible in 16:9 mode, cut-off pulses are not inserted when the cut- off loop is frozen.

3.4.6 Warm-up Detector

At power on, the cut-off loop is not active and high DC levels are inserted during "cut-off" lines. The Cut-off loop will be active when the cathode cur- rent reaches the warm- up detection threshold. This causes the picture to be displayed from a dark screen. The RGB outputs are blanked until cut-off current is close to the reference voltage. The manual cut-off mode can be selected via the I²C bus. In this mode, the I CATH input pin is inac- tive and cut-off pulses are not inserted. The RGB black levels are independently controlled by three I²C bus registers (8-bit resolution). The black level of each RGB output can be adjusted within a range of 2.5 V (typ.).

3.4.7 Beam Current Limiter DC Voltage Input

The Beam Current Limiter (BCL) will first decrease the contrast and then the brightness when the contrast attenuation reaches -5 dB.

3.4.8 Drive (RGB gain) and DC Adjustment

The red, green, blue channel gain for white point adjustment takes place via the bus. The red and

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION green DC levels for black point adjustment takes place via the bus.

3.4.9 Bus-controlled Contrast & Saturation

The Contrast Control regulates internal RGB, ex- ternal RGB and OSD RGB inputs. The maximum attenuation on internal and external RGB inputs is -24 dB and is limited to -12 dB for OSD RGB in- puts. The bus-controlled saturation range is 50 dB.

3.4.10 Bus-controlled Brightness & Sharpness

The total brightness range is 60% of the black-to- white amplitude at maximum contrast. The bright- ness control regulates al l RGB sources (internal, external and OSD). Bus-controlled Sharpness (peaking) is provided in PAL/SECAM/NTSC standards.

3.4.11 Bus-controlled Coring on Sharpness

When the Coring-on-sharpness function is switched ON, the peaking function is not active on low amplitude signals (below 10 IRE).

3.4.12 Black Stretch

The Black Stretch circui t can be disabled via the bus. Two modes are provided, one to be used when the video signal is transmitted with a set-up (7.5IRE set-up in NTSC), the other to be used when the video signal is transmitted without a set- up (PAL/SECAM).

3.4.13 Bus-controlled Blue Screen

The bus-controlled Blue Screen feature is used to insert a blue background on the screen when no video is available. The RGB OSD can be dis- played when the blue screen is active.

3.4.14 White Insertion

This function is used to force a full white screen at RGB output via the I²C bus or during Soft mode at Powerdown.

3.4.15 Automatic RGB Peak Regulation (APR)

The APR function is used to take advantage of the total RGB output range. APR circuits detect the peak level of the RGB outputs (before OSD inser- tion) and regulate the RGB gain (contrast) so that signals above the APR thre shold are limited. For example, at maximum drive and contrast levels with the APR function switched OFF, the 100 IRE input signal gives 3 V(B/W) to the RGB outputs. With APR ON and the APR threshold at 70 IRE, the 70 IRE input signal gives 3 V (B/W) at RGB outputs. For input signals above 70 IRE, the APR will decrease the RGB gain so that amplitude at the RGB output is always 3 V (B/W). The APR gain control voltage is memorized on an external capacitor where the gain decrease is very fast and the gain increase is very slow (several frames). The APR function can be enabled or disabled via the I²C bus. APR ON when register 10 hex d0 = 1 and register 07 hex d6 = 0.

3.4.16 RGB Peak Limitation

The APR function can be switched into an RGB Peak Limitation function via the I²C bus: register 07 hex, data d6 = 1 and register 10 hex d0 = 1. For this purpose, the APR threshold, tracked with the contrast for the APR function, is changed in a fixed threshold that is independent of the contrast. In this case, the APR threshold I²C control should be set to its maximum value.

3.5 CHROMA CIRCUIT

3.5.1 PAL/SECAM/NTSC Decoders

SVHS Chroma input; bus-controlled SVHS mode. – 30 dB Automatic Color Control (ACC) range. The ACC function is an automatic gain control of the color amplifier. – Integrated chroma base band delay line and ON/ OFF bus control. – Automatic standard identification, with possibility of forcing the standard via the bus. – 3-crystal application capability for the South American market: The first crystal on Pin XTAL1 (3.5X MHz only), the second crystal on Pin XTAL2 (3.5X MHz on- ly), and the third crystal on Pin XTAL3/BTUN (3.5X MHz only, used for PAL/NTSC application only).

3.5.2 PAL/NTSC Decoder

ACC carried out by peak detector on synchronous demodulation of the burst. Fully-integrated killer function. VCO using two standard crystals: 4.43 MHz and 3.58 MHz. One crystal is internally selected de- pending on the standard selection. A third crystal can be used in PAL/NTSC applications only. VCO reference signal is available on Pin X1. – 4.433619 MHz Crystal specification. Mode of operation: serial resonance (without load capacity), Motional capacitance: C M = 13fF ±3fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70Ω. – 3.579545 MHz Crystal specification (NTSC M). Mode of operation: serial resonance (without load capacity), Motional capacitance: C M = 11fF ±3fF,

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - FUNCTIONAL DESCRIPTION Shunt capacitance: CP < 7 pF, Serial resistance: RS < 70 Ω. – 3.575611 MHz XTAL specification (PAL M). Mode of operation: serial resonance (without load capacity), Motional capacitance: C M = 12fF ±2fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70Ω. – 3.582056 MHz XTAL specification (PAL N). Mode of operation: serial resonance (without load capacity), Motional capacitance: C M = 12fF ±2fF, Shunt capacitance: CP < 7pF, Serial resistance: RS < 70Ω. 0° and ± 90° demodulation angles for PAL. Bus-controlled demodulation angles (0, 90) or (0, 104) are available in NTSC mode. Bus-controlled Hue adjus tment is available in NTSC mode.

3.5.2.1 NTSC Automatic Flesh Control

Two automatic flesh cont rol characteristics are available via the bus.The normal flesh control with ±10° correction and a total action range of ±60° and the wide flesh control with ±20° correction and a total action range of ±90°.

3.5.3 SECAM Decoder

The following functions ar e fully-integrated: Killer, PLL demodulator and De-emphasis functions.

3.5.4 Chroma Standard Identification

R-Y and B-Y outputs are blanked during Color Search mode. The color is displayed only when the chroma standard has been identified.

3.5.4.1 Sequential Identification

Three identification sequences: – XTAL1 (4.43 MHz) mode to identify either PAL or NTSC. – XTAL2 (3.58 MHz) mode to identify either PAL or NTSC. – SECAM mode (XTAL1 selection). In 3-crystal applications, the SECAM sequence is replaced by XTAL3 selection to identify either PAL or NTSC signals.

3.5.4.2 SECAM Identification

SECAM mode is locked after two identified SE- CAM sequences. SECAM mode can be selected in 50 Hz mode on- ly. PAL/NTSC has priority over SECAM standard.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4 ELECTRICAL CHARACTERISTICS

4.1 ABSOLUTE MAXIMUM RATINGS

4.2 THERMAL DATA

Refer to Section 10 for more information about TQFP64 cooling.

4.3 SUPPLY

(Supplies at Typical Values, T amb = 25° C, I²C bus register at power-on reset value, automatic cut-off mode, unless otherwise specified). Symbol Parameter Value Unit VCC_8V 8 V Supply Voltage 10 V VCC_5V 5 V Supply Voltage 7 V VESD Capacitor 100 pF discharged via 1.5 kΩ serial resistance (Human Body Model) ±2 kV TOPER Operating Temperature 0, +70 °C TSTG Storage Temperature -55, +150 °C Symbol Parameter Typical Value Unit RthJA Junction-ambient Thermal Resistance at ambient 25°C SDIP56 40 °C/W RthJA Junction-ambient Thermal Resistance at ambient 25°C TQFP64 50 °C/W RthJC Junction-case Thermal Resistance at ambient 25°C TQFP64 10 °C/W Symbol Parameter Test Conditions Min. Typ. Max. Unit VCCIF IF Circuit Supply Voltage 4.75 5 5.25 V VCCD Bus & Digital Supply Voltage 4.75 5 5.25 V VCC1 Chroma, Scanning Supply Voltage 7.6 8 8.4 V VCC2 Video Supply Voltage 7.6 8 8.4 V ICCIF VCCIF Current Consumption V CCIF = 5 V. No-load at RGB outputs. 58 mA ICC5F VCC5F Current Consumption V CCD = 5 V. No-load at RGB outputs. 48 mA ICCI VCCI Current Consumption V CCI = 8 V. No-load at RGB outputs. 40 mA ICC2 VCC2 Current Consumption V CC2 = 8 V. No-load at RGB outputs. 56 mA PD Total Power Dissipation VCCI = V CC2 = 8 V, VCCIF = VCC5V = 5 V No-load at RGB outputs. 1300 mW

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.4 IF SECTION

Tamb = 25°C, VCCIF = 5 V, VCC2 = 8V, IF input =10 mVRMS (at sync level for negative modulation, or at peak white level for positive modulation). Video modulation DSB, D = 90% and fSC = 33.4 MHz in B/G, D = 95% in L, fPC = 38.9 MHz. Video Bandwidth = 5 MHz, AF = 1 kHz, Audio Bandwidth = 20 kHz, FMdev = ±27 kHz. Volume Attenuation = 0 dB, AM carrier input: 10 mVRMS, 54% modulated unless otherwise specified.

4.4.1 PIF Amplifier

4.4.2 PIFAGC Negative Modulation

4.4.3 PIFAGC Positive Modulation

4.4.4 Tuner AGC

Symbol Parameter Test Conditions Min. Typ. Max. Unit VINPIF Input Sensitivity -1dB at Video Output (INTCVBSOUT) 75 85 95 µV RMS RINPIF Differential Input Resistance PIF Inputs. 1.5 2 2.5 k Ω CINPIF Differential Input Capacitance PIF Inputs. 1.5 2 2.5 pF GR Gain Control Range 65 dB VMax. Maximum Input Signal +1dB at Video Output (INTCVBSOUT) 0.12 0.15 V RMS Symbol Parameter Test Conditions Min. Typ. Max. Unit IC Charging Current at AGCPIFCAP Pin 450 675 900 µA ID Discharging Current at AGCPIFCAP Pin 10 15 20 µA IC/ID Charging/Discharging Current Ratio 41 45 49 Symbol Parameter Test Conditions Min. Typ. Max. Unit IC Charging Current at AGCPIFCAP Pin 1.75 2.5 3.25 mA ID Discharging Current at AGCPIFCAP Pin 0.15 0.25 0.35 µA ICP Additional Charging Current at AGCPIFCAP Pin L mode in case of missing VITS pulses and no white in Video con- tent 2.8 4 5.2 µA THICP Threshold for additional charging cur- rent Referred to nominal black level

2.3 VPP at INTCVBSOUT Pin 160 mV

IDP Additional Discharging Current 20 30 40 µA THIDP Threshold for additional discharging current Referred to nominal black level

2.3 VPP at INTCVBSOUT Pin -345 mV

Symbol Parameter Test Conditions Min. Typ. Max. Unit IAGCT Maximum Sinked Current 1.5 2 2.5 mA SAGCT Tuner AGC Slope (current) Reg 03 (D7, D6) 00 170 270 µA/dB I AGCP Maximum Tuner plus Sinked Current (See Note 1) 40 mA AGCST Tuner AGC Starting Point (IF input related signal) Reg 03 (D5 to D0 = 10 0000) Reg 03 (D5 to D0 = 00 0000) Reg 03 (D5 to D0 = 11 1111) mVRMS STT Variation of take over point with tem- perature 0.03 0.07 dB/K

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS Note 1: Additional sinked current for large increasing steps of input signal when: - Voltage at PIFinput > Tuner AGC starting point adjustment given by the WR03(d5 to d0) - Output Signal (IntCVBSout) saturated (VIntCBVSoutVwth) in positive modulation.

4.4.5 Synchronous Video Demodulator

Note 2: This parameter is not tested during production, it is tested during the qualification phase.

4.4.6 Demodulated Video Output (INTCVBSOUT Pin)

Note 3: S/N = 20 log [PIFOUT Black to White / VNOISE(mVRMS) weighted CCIR 567. Note 4: Supply Voltage ripple rejection = 20log (VSUPPLY/VOUTPUT) measured at 100 Hz with VAC Max. = 100 mVpp ap- plied to VCC IF = 5 V. Symbol Parameter Test Conditions Min. Typ. Max. Unit DFPC Vision Carrier Capture Range ±2 MHz fVCO Maximum VCO Frequency for PIF regeneration With external LC network at 50 MHz (see Note 2) 50 MHz VILOCK PIF Input Signal for PIF PLL locking 40 70 µV RMS TVCO PIFVCO Temperature Coefficient ±20 ppm/K Symbol Parameter Test Conditions Min. Typ. Max. Unit PIFOUT-Q PIFOUT-I Video Amplitude at INTCVBSOUT Pin Black-to-White Video amplitude: reg 02 data = 10h (INTCVBSOUT =2 VPP) reg 02 data = 90h (INTCVBSOUT =2.3 VPP) 1.19 1.36 1.4 1.6 1.61 1.84 V BG/L BG to L Ratio Video amplitude bus register Typ.: reg 02 data = 10 hex 58 % DG Differential Gain 3 5 % DP Differential Phase 3 5 deg VPIF Residual Carrier Signal 1 10 mV RMS VR2IF Residual 2nd Harmonic 1 10 mV RMS S/N Video Output S/N Ratio See Note 3 55 60 dB VWTH White Noise Threshold Voltage reg 02 data = 90h 2.3 VPP at INTCVBSOUT Pin 6.7 V VWIL White Noise Insertion Level reg 02 data = 90h 2.3 VPP at INTCVBSOUT Pin 3.7 V VBTH Black Noise Threshold Voltage reg 02 data = 90h

2.3 VPP at INTCVBSOUT Pin 1V

VBIL Black Noise Insertion Level reg 02 data = 90h 2.3 VPP at INTCVBSOUT Pin 2.6 V BW Video Bandwidth 6 8 10 MHz LUMLIN Luminance Non Linearity 5 % ROUT Internal Output Resistance 50 Ω RLOAD Output Load Resistance reg 02 data = 10hex (INTCVBOUT = 2 VPP) 23 k Ω IVID Video Output Source Current reg 02 data = 90hex (INTCVBSOUT = 2.3 VPP) 71 0 1 3 m A DCOUT DC Output Level Top Sync Level 2 V Inter Mod. 1.07 MHz Intermodulation Intercarrier Mode 52 dB PSRR Power Supply Ripple Rejection Video signal Grey level (see Note 4) BG standard L standard dB NH Suppression of Video signals har- monics 35 40 dB

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.4.7 SIF Amplifier

Note 5: L standard Sc/Pc = -10 dB, Nyquist Pc = -6 dB, SIF input -4 dB with PIF input = 84 µV, BG standard Sc/Pc = - 13 dB, Nyquist Pc = -6 dB, SIF input -7 dB with PIF input = 85 µV. Note 6: This parameter is not tested during production. It is tested on the validation bench during the qualification phase.

4.4.8 SIF AGC (FM)

4.4.9 SIF AGC (AM)

4.4.10 FM Demodulator

Electrical parameter valid in both QSS and Intercarrier modes, unless otherwise specified.

4.4.11 De-emphasis

Symbol Parameter Test Conditions Min. Typ. Max. Unit VINSIF SIF Input Sensitivity - 3dB at AM/FMOUT Pin (see Note 5) AM output amplitude, FM subcarrier amplitude µV RMS GRSIF Gain Control Range - 3dB to +1dB at AM/FMOUT Pin 60 dB CINSIF Differential Input Capacitance SIF Inputs (see Note 6) 1.5 2 2.5 pF RINSIF Differential Input Resistance SIF Inputs 1.5 2 2.5 k Ω Symbol Parameter Test Conditions Min. Typ. Max. Unit IC Charging Current 2.4 mA ID Discharging Current 100 µA Symbol Parameter Test Conditions Min. Typ. Max. Unit INORMAL Charging/Discharging Current Normal time constant ±6 µA IFAST Charging/Discharging Current Fast time constant ±2.4 mA Symbol Parameter Test Conditions Min. Typ. Max. Unit SIFMin Min. Broadcast Sound/Video Carri- er Ratio Intercarrier mode: SAW filter K2955M at SNR 35 dB -30 dB VOAF FM Audio Output Amplitude at AM/ FMOUT Pin FM dev = ±27 kHz BGDKI FM dev = ±13.5 kHz MN 400 500 630 mV RMS DFMX _norm Maximum FM Deviation THD < 10%, normal audio mode, AF = 1 kHz 200 kHz DFMX _w_qss Maximum FM Deviation QSS mode, Audio FM Wide mode (reg 04h, d3d2 = 11), AF = 1 kHz 400 kHz THD_FM Total Harmonic Distortion FM dev = ±27 kHz BGDKI 0.3 1 % S/N Audio S/N Weighted according to CCIR468-4 Quasi-Peak 55 dB AMR Amplitude Modulation Rejection m = 30%, AF = 1 kHz 32 dB SVR Supply Voltage Rejection See Note 4 45 dB S/N vsvideo S/N versus picture content, Inter- carrier mode Intercarrier mode: SAW filter K2955M Black picture, White picture, 250 kHz squarewave dB Symbol Parameter Test Conditions Min. Typ. Max. Unit deemp-T1 De-emphasis Time Constant B,G,D,K,I standards 50 µs deemp-T2 De-emphasis Time Constant M, N, standards 75 µs

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.4.12 AM Demodulator

4.4.13 SIF Output (AM/FM or Sound Subcarriers Output)

4.4.14 SAW Filter Switch Output (TQFP64 only)

4.4.15 External Audio Input

4.4.16 Main Audio Output

(See Figure 17 on page 42 and Figure 18 on page 42) Symbol Parameter Test Conditions Min. Typ. Max. Unit AFOUT AM Audio Output Amplitude at AM/ FMOUT Pin 54% modulation 400 500 630 mV RMS AMlowco Low Cut-off Frequency -3 dB compared AFout 40 Hz AMhighco High Cut-off Frequency -3 dB compared AFout 30 kHz AMthd Total Harmonic Distortion 54% modulation 2 % AMs/n Signal/Noise Ratio Weighted according to CCIR468-4 Quasi-Peak 55 dB AMsvr Supply Voltage Rejection See Note 4 20 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit SIFout Output Level Sound subcarriers 150 mV RMS SIFbw Bandwidth Sound subcarriers 7.5 MHz SIF dcout DC Output Level 4 V SIFres Residual Carrier Fundamental wave (38.9 MHz) and harmonics 0.4 mV RMS SIFcur Sink Output Current AM or FM demod. output selected Sound subcarriers output selected 0.5 1.5 mA Symbol Parameter Test Conditions Min. Typ Max. Unit SAW low Low Output Voltage I SINK = 2 mA 0.4 V SAWcur Maximum allowed Current 2 mA SAW high High Output Voltage I SOURCE = 2 mA 4 V Symbol Parameter Test Conditions Min. Typ. Max. Unit RIN Input Resistance 70 100 130 k Ω VIDC DC Input Voltage 2.4 V AFIN maximum Audio Input Signal 2 V RMS Symbol Parameter Test Conditions Min. Typ. Max. Unit AMax Maximum Attenuation (Audio Out/ AM-FM Out) Register 05hex, data = 7Fhex 78 dB AMin Minimum Attenuation (Audio Out/ AM-FM Out) VIN = 1 VRMS, f = 1 kHz, Register 05hex, data = 00hex -1 0 1 dB ASTEP Step Resolution reg 05, d7 = 0 0.7 dB DCSH DC Output Shift From max. volume to min. volume 50 mV VODC DC Output Level 4 V AFDIFF Audio Amplitude difference between sources f = 1 kHz, fM = ±27 kHz, Ext. Audio Input = 500 mVRMS 2d B ROUT Output Resistance 110 Ω BWO Output Bandwidth 1 MHz THD_AM Total Harmonic Distortion VIN = 1 VRMS, f = 1 kHz 0.1 0.3 %

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS Note 7: Measured from any input to output at f = 10 kHz with RL = 10kΩ and Rg = 600Ω, Volume attenuation = 0dB.

4.4.17 AVL

4.5 CVBS, Y/C, RGB INPUTS AND CVBS OUTPUTS

4.5.1 Luminance & CVBS Inputs

4.5.2 Combined Chrominance & SVHS Selection Input

4.5.3 CVBS1 Output (Pin 29 - SDIP56)

S/N1 Signal to Noise Ratio from Exter- nal Input Measured at 0 dB attenuation, Ext. Audio Input at 500 mVRMS, CCIR 468-4 Weighted Quasi Peak 75 dB S/N2 Signal to Noise Ratio from Exter- nal Input Measured at 20 dB attenuation, 0 dB reference Ext. Audio Input at 500 mVRMS 55 60 dB S/N3 Signal to Noise Ratio from FM Demod Measured at 20 dB attenuation, FM: ± 27 kHz (Standards BGDKI) 52 55 dB SVRV Supply Voltage Rejection from External Input Measured at f = 100 Hz from VCC = 5 V and VCC = 8 V 60 dB XT Crosstalk See Note 7 70 dB NOISE Output Noise Level CCIR 468-4 Weighted Quasi Peak Volume at minimum Volume at typical Volume at maximum 100 120 µV AFIN Audio Input Level Volume = -25 dB, THD < 1% 2 V RMS Symbol Parameter Test Conditions Min. Typ. Max. Unit Symbol Parameter Test Conditions Min. Typ. Max. Unit GAVL AVL Gain Control Range (7-bit Resolution) 20 dB AVLMAX Maximum attenuation -15 dB Reg.AVL Regulation amplitude Measured at AUDIOOUT Volume Control at maximum 0.55 V RMS Symbol Parameter Test Conditions Min. Typ. Max. Unit DCIN1 Black Level Voltage Input selected on main CVBS output 3.3 V VIN CVBS or Y Input Voltage 1 1.41 V PP -I Negative Clamping Current During SYNC pulse 20 27 35 µA I Positive Clamping Current 2.5 4.5 7 µA Symbol Parameter Test Conditions Min. Typ. Max. Unit V Chrominance Input Voltage Burst Amplitude, 100/75 Color Bar 0.3 0.6 VPP VCLIP Input Amplitude before Clipping 1 VPP VDC DC Voltage SVHS Mode 1.55 1.70 1.85 V VTH SVHS Threshold Voltage 0.50 0.90 1.45 V ILOW Output Current 0V at CHR Pin 150 µA Symbol Parameter Test Conditions Min. Typ. Max. Unit VOUT Dynamic Output Amplitude Register 1Dhex, data = 07hex 1.5 V PP RLOAD Output Load Resistance Register 1Dhex, data = 07hex 3 k Ω BW CVBS Bandwidth Register 1Dhex, data = 07hex VIN = 1 VPP

10 MHz

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.5.4 CVBS2 Output

4.5.5 OSD RGB Inputs

4.5.6 FBOSD/HC Inputs

Crosstalk Deletion of non-selected signals Register 1Dhex, data = 07hex Up to 5 MHz 50 dB MGAIN Output Gain Register 1Dhex, data = 07hex From any CVBS/Y inputs -0.5 0 0.5 dB DCMAIN DC Output Voltage Register 1Dhex, data = 07hex Black Level 4.2 V Symbol Parameter Test Conditions Min. Typ. Max. Unit Symbol Parameter Test Conditions Min. Typ. Max. Unit VOUT2 Dynamic Output Amplitude 3 VPP ROUT2 Internal Output Resistance 10 Ω BW2 CVBS Bandwidth VIN = 1V PP 10 MHz Crosstalk2 Deletion of non-selected signals Up to 5 MHz 50 dB SWI2gain Output Gain From any CVBS/Y inputs 5.5 6 6.5 dB SWI2DC DC Output Voltage Black Level 3.8 V RLOAD2 Output Load Resistance 1.5 k Ω Symbol Parameter Test Conditions Min. Typ. Max. Unit VCLAMP Clamp Level Max. Contrast 4 V VRGB RGB Input Voltage 0.7 1 V PP CRGB RGB Gain Max. Contrast, Max. Drive 4.28 - Dblack Difference of black level of internal and external signals at the RGB out- puts OSD signal versus internal signal 50 mV IRGB Clamping Current 60 100 140 µA Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz 50 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit VTHFB1A OSD Insertion Threshold Voltage Half Contrast disable Register 08hex d6 = 0 0.5 0.7 0.85 V VTHFB1B OSD Insertion Threshold Voltage Half Contrast enable Register 08hex d6 = 1 1.5 1.9 2.3 V VTH-HC Half Contrast Threshold Voltage Half Contrast enable Register 08hex d6 = 1 0.5 0.7 0.85 V VTHFB2 Blanking Threshold Voltage, Oversize Blanking active Register 08hex, d7 = 1 3 . 244 . 8V tSWI1 Insertion Switching Delay 20 40 ns tSWI2 Blanking Switching Delay From FBOSD = 4V to starting of blanking falling edge at RGB out- puts 100 ns I FB Input current 0V at Pin FBOSD 10 µA

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.5.7 External RGB/YCrCb Inputs

4.5.8 External Fast Blanking Input

(See Note 8) Note 8: The FBEXT input must be connected to ground if not used in the application.

4.6 LUMA PART

4.6.1 Y Delay Line

4.6.2 Peaking Circuit

Electrical parameter measured with color identified Symbol Parameter Test Conditions Min. Typ. Max. Unit VCLAMP Clamp Level Max. Contrast 3.5 V VRGB RGB Input Voltage 0.7 1 V PP VYCrCb YCrCb Input Voltage 100% color bar register 0Ahex d7d6 = 11 Y Cr Cb 0.7 0.7 VPP CRGB RGB Gain Max. Contrast, Max. Drive 4.28 - Dblack Difference of black level of internal and external signals at the RGB out- puts OSD signal versus internal signal 50 mV IRGB Clamping Current 60 100 140 µA Crosstalk Deletion of non-selected RGB source From 0 to 5 MHz 50 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit VTHFB Insertion Threshold Voltage 0.5 0.7 0.85 V tSWI Insertion Switching Delay 20 40 ns IFB Input Current 0V at Pin FBEXT 10 µA VMAX Max. voltage allowed at FBEXT input 5 V Symbol Parameter Test Conditions Min. Typ. Max. Unit tD1 Delay Time PAL/NTSC SVHS mode, Register 1F d3 = 0 520 ns tD2 Delay Time SECAM SVHS mode, Register 1F d3 = 0 640 ns tD3 Delay Time PAL/NTSC CVBS mode, Register 1F d3 = 0 560 ns tD4 Delay Time SECAM CVBS mode, Register 1F d3 = 0 710 ns tSHIFT Delay Time (lumDel1 - lumDel2) lumDel1 = reg 1F d3 = 0, standard luma delay lumDel2 = reg 1F d3 = 1, shifted luma delay 140 ns Groupdel Group Delay up to 3.5MHz Trap-off ±30 ns Symbol Parameter Test Conditions Min. Typ. Max. Unit fPEAK Center Frequency Trap-off, coring ON 2.5 3 3.5 MHz GPEAK Gain Variation from Min. to Max. peaking At fPEAK, coring ON 9 dB Overshoot Amplitude Variation compared to B/W amplitude 2T pulse, Max. peaking, coring ON 55 %

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.6.3 Black Stretch Control (Pin BS)

4.6.4 Y Output

4.7 FILTERS

4.7.1 Y Trap Filter

4.7.2 Chrominance Bandpass

Pre-shoot Amplitude Variation compared to B/W amplitude 2T pulse, Max. peaking, coring ON 40 % Aft-shoot Amplitude Variation compared to B/W amplitude 2T pulse, Max. peaking, coring ON 40 % Coring Coring Range compared to B/W Coring ON 10 % Symbol Parameter Test Conditions Min. Typ. Max. Unit Symbol Parameter Test Conditions Min. Typ. Max. Unit BSth1 Black Stretch Threshold referred to B/W amplitude Y/CVBS inputs: 0.7V B/W, No set-up 50 % BSMax. Maximum expansion referred to B/W amplitude Y/CVBS inputs: 0.7V B/W, No set-up -15 % BSVMax. Black Stretch Control Voltage Max. black stretch 2.6 V BSVMin. Black Stretch Control Voltage No black stretch 3.3 V I100IRE Discharging current Y = 100IRE 8 µA I0IRE Charging Current Y = 0IRE 35 µA Symbol Parameter Test Conditions Min. Typ. Max. Unit Yout-DC Black level 3.7 VBW Yout-amp Black to White Amplitude 0.7 0.99 V Yout-BW Luma Path Bandwidth Peaking nominal SVHS mode/Trap-off CVBS, PAL/NTSC 4.43MHz CVBS, SECAM CVBS, PAL/NTSC 3.58MHz 2.7 2.5 2.5 3.5 3.1 3.0 MHz Yout S/N Signal to Noise Ratio (V PP/VRMS) Bandwidth 5MHz, Peaking Min.,coring ON 50 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit fTRAP-PN Notch Frequency PAL/NTSC f OSC MHz fTRAP-S Notch Frequencies SECAM fnb SECAM fnr 4.2

4.5 MHz

fTRAP-ACC Notch Frequency Accuracy 3.5 % QTRAP Trap Quality Factor Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking Min. 1.5 - CrejPN Color Subcarrier Rejection PAL/NTSC 20 dB CrejS Color Rejection in SECAM Mode From 4.1 to 4.6 MHz At 3.9 MHz 10 20 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit fBP Center Frequency Register 12h, d3-d0 = 0000 -5% f OSC +5% MHz QBP Bandpass Quality Factor 2.8 3.5 4.2 -

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.7.3 Bell Filter

4.8 CHROMA PART

4.8.1 ACC

4.8.2 ACC Overload

4.8.3 Killer

4.8.4 Chroma PLL

4.8.5 PLL Loop Filter (PAL/NTSC)

4.8.6 Hue Control

4.8.7 Automatic Flesh Control

Symbol Parameter Test Conditions Min. Typ. Max. Unit fBELL Center Frequency Register 11h, d4-d0 = 00000 4.27 4.29 4.31 MHz QBP Bell Quality Factor 14 16 18 - Symbol Parameter Test Conditions Min. Typ. Max. Unit GACC ACC Control Range Change of burst overall ACC control range < 2dB 26 dB VMin. Minimum Burst Signal Amplitude Within the ACC control range 0.03 V PP Symbol Parameter Test Conditions Min. Typ. Max. Unit VTH Chroma regulation Threshold ACC overload ON, PAL/NTSC 3 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit Ident-kill Color on Threshold of ident. circuit Burst amplitude on selected CVBS input 5 mVPP Kill-Hyst Color off Killer Hysteresis Strong signal condition, S/N > 40 dB 2 mVPP Symbol Parameter Test Conditions Min. Typ. Max. Unit CaptR Catching Range With recommended crystal and rec- ommended CLPF filter value. ±300 HoldR Holding Range > or = to capture range Symbol Parameter Test Conditions Min. Typ. Max. Unit IC Maximum Control Current Color search mode (colour not ident.) Color identified 1000 350 µA IL Leakage Current 5µ A Frange-W Auto Flesh Control Register 14(HEX), d6 = 1, d7 = 1 ±90 Deg Symbol Parameter Test Conditions Min. Typ. Max. Unit RHUE Hue Control Range ±35 ±45 ±55 Deg Symbol Parameter Test Conditions Min. Typ. Max. Unit FleshNom. Nominal Flesh Tint Phase 118 Deg Fcorr0 Phase Correction when Auto Flesh ON At FleshNom 0 Deg FMax.-N Maximum Phase Correction Register 14(HEX), d6 = 1, d7 = 0 ±10 Deg Flesh-N Chroma Input Phase at Max. cor- rection Register 14(HEX), d6 = 1, d7 = 0 ±30 Deg Frange-N Auto Flesh Control Range Register 14(HEX), d6 = 1, d7 = 0 ±60 Deg

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.8.8 Color Demodulators

4.8.9 Chroma Delay Line

4.8.10 Chroma Reference Output

4.9 SCANNING PART

4.9.1 Synchronization Separator

4.9.2 Horizontal Oscillator

FMax.-W Maximum Phase Correction Register 14(HEX), d6 = 1, d7 = 1 ±20 Deg Flesh-W Chroma Input Phase at Max. cor- rection Register 14(HEX), d6 = 1, d7 = 1 ±45 Deg Frange-W Auto Flesh Control Register 14(HEX), d6 = 1, d7 = 1 ±90 Deg Symbol Parameter Test Conditions Min. Typ. Max. Unit Symbol Parameter Test Conditions Min. Typ. Max. Unit DoffsetP Demodulator Offset PAL/NTSC mode, 75% color bar ±2 % DoffsetS Demodulator Offset SECAM mode, 75% color bar ±2 % PhaseErr Phase Error in demodulated signal PAL/NTSC mode, 90% matrix 5 Deg TransPal Chroma Transient Time PAL mode, 75% color bar green- magenta transient 700 ns transSEC Chroma Transient Time SECAM mode, 75% color bar green- magenta transient 900 ns Naxis R-Y Demodulation Axis NTSC mode, 104° matrix 104 Deg Symbol Parameter Test Conditions Min. Typ. Max. Unit Cdelay Delay of delayed signals Relative to non delayed signal 63.9 64 64.1 µs Ctrans Difference of transient times be- tween delayed and non delayed signals SECAM mode. tRN -tRN+1 tRN: rise time line N (direct) tRN+1: rise time line N +1 (delayed) 150 ns Dgain Differential Gain of delayed signals versus direct signals SECAM mode. Gn+1/Gn Gn: direct channel gain Gn+1: delayed channel gain -0.5 0 0.5 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit CHR-amp Chroma VCO Reference Signal Amplitude 0.4 VPP ISCHR Sink Current 0.5 mA Symbol Parameter Test Conditions Min. Typ. Max. Unit VSYNC Synchronization Pulse Amplitude 50 300 450 mV Symbol Parameter Test Conditions Min. Typ. Max. Unit fH50 Horizontal Frequency 50 Hz mode 15.6 kHz fH60 Horizontal Frequency 60 Hz mode 15.7 kHz fRANGE Frequency Control Range Low Frequency High Frequency 14.7 15.9 15.0 16.3 15.3 — kHz fFREE Free Frequency when PLL1 opened 15.3 15.6 15.9 kHz

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.9.3 First Loop Filter

4.9.4 Second Loop Filter

Note 9: This parameter is not tested during production, it is tested during the qualification phase.

4.9.5 Line Flyback Input/Super-Sandcastle Output

4.9.6 Horizontal Output

4.9.7 Vertical Output

Symbol Parameter Test Conditions Min. Typ. Max. Unit ILOW Long Time Constant Output Current 0.10 0.13 0.16 mA IHIGH Short Time Constant Output Current 0.30 0.40 0.56 mA IVLOW Very Long Time Constant 0.03 0.05 0.07 mA Symbol Parameter Test Conditions Min. Typ. Max. Unit CrangeP2 Control Range from start of horizon- tal output to flyback pulse Centered horizontal position 0 to 12 µs HSHIFT Horizontal Position Control Range 5 5.25 µs HDRIFT Horizontal Drift with temperature From 0°C to 70°C (see Note 9) 200 ns Symbol Parameter Test Conditions Min. Typ. Max. Unit VBURST Output Voltage during Burst Key 4.8 5.3 5.8 V VLINE Clamped Input Voltage during Line Flyback 2.6 3 3.4 V VVERT Output Voltage during Vertical pulse 1.8 2 2.2 V Twbg Burst key Pulse Width 3.8 µs Tdbg Delay of start of burst key to start of sync. 5.2 µs Tvert Vertical Pulse Width 10.5 lines VTHLINE PLL2 and Line Blanking Threshold Voltage referred to line level Vline Vthline/Vline 83 % I Input Current 0.1 1 mA Symbol Parameter Test Conditions Min. Typ. Max. Unit tW Output Pulse Width 26 28 30 µs VLOW Low Output Voltage I SINK = 5mA 0.4 V VCCSTART VCC Start Level 5.5 6 6.5 V VCCSTOP VCC Stop Level Hysteresis V CCSTART - VCCSTOP 0.5 0.6 0.7 V IMax. Maximum allowed Output Current 10 mA VMax. Maximum allowed Output Voltage 10 V Tss Output Pulse Duty Cycle in soft-start mode (tHIGH/(tHIGH+tLOW) 75 % Symbol Parameter Test Conditions Min. Typ. Max. Unit tW Output Pulse Width 10.5 Lines VLOW Low Output Voltage Reg 19, d0 = 1 Reg 19, d0 = 0 1.5 2 0.1 2.5 0.5 V fLOCK Looking Range 248 352 Lines fFREE-50 Free Frequency (no Video signal) 50-Hz Forced or 50-Hz Auto mode 314 Lines fFREE-60 Free Frequency (no Video signal) 60-Hz Forced or 60-Hz Auto mode 264 Lines

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.9.8 Vertical Amplitude Control

4.9.9 Crystal Detection

4.10 RGB CONTROL PART

4.10.1 Y Input

4.10.2 U & V Inputs

4.10.3 Contrast Control

4.10.4 Saturation Control

High Level Range Vertical Position Control Min. position control Max. position control 3.5 6.0 6.5 4.5 7.0 V ISINK Output Sinking Current 0.7 1.0 mA ISOURCE Output Source Current 0.7 1.0 mA Symbol Parameter Test Conditions Min. Typ. Max. Unit Symbol Parameter Test Conditions Min. Typ. Max. Unit VAMP Output Voltage Range Min. amplitude voltage Max. amplitude voltage 1.2 5.5 1.5 6.0 1.7 6.5 V Symbol Parameter Test Conditions Min. Typ. Max. Unit R4.43 Load resistance at pin VAMP 4.43 MHz crystal on pin XTAL1 80 k Ω R3.58 Load resistance at pin VAMP 3.58 MHz crystal on pin XTAL1 10 k Ω Symbol Parameter Test Conditions Min. Typ. Max. Unit YINdc Black Level 3.7 V Yin-B/W Black to White Amplitude 0.7 1 V Yin-cur Input Current 1µ A Symbol Parameter Test Conditions Min. Typ. Max. Unit UVin-dc Black Level 3.7 V Uin-amp B-Y Amplitude 75% color bar PAL/SECAM 1.33 2.0 V PP Vin-amp R-Y Amplitude 75% color bar PAL/SECAM 1.05 2.0 V PP UVin-cur Input Current 1µ A Symbol Parameter Test Conditions Min. Typ. Max. Unit Yctr Contrast Range on Y signal 21 24 27 dB OSDctr Contrast Range on OSD RGB sig- nal 10 12 14 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit SATMax. Maximum Saturation Control 75% color bar PAL/SECAM, 0 dB for data 20 in reg 08 6 9 12 dB SATMin. Minimum Saturation Control 75% color bar PAL/SECAM, 0 dB for data 20 in reg 08 -40 dB

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.10.5 Brightness Control

4.10.6 RGB Matrix

4.10.7 Drive Adjustment (White Point Adjustment)

4.10.8 Cut-Off Adjustment (Black Point Adjustment)

4.10.9 Cathode Current Input

4.10.10 Beam Current Limiter Input

See Figure 14 on page 42 and Figure 15 on page 42. Symbol Parameter Test Conditions Min. Typ. Max. Unit Bright Brightness Control Range referred to B/W amplitude on RGB outputs At Max. Contrast, APR OFF 50 60 70 % Blacknom Nominal Black Level at RGB out- puts. Difference between black lev- el VBLACK and inserted cut-off pulse level VCO: VBLACK - VCO BS mode, Max. Contrast. (VBLACK - VCO)/V_BW V_BW: black to white amplitude at RGB outputs. -12 % Symbol Parameter Test Conditions Min. Typ. Max. Unit G/R (G-Y)/(R-Y) PAL/SECAM matrix measured on R, G outputs PAL DEMpattern -0.40 -0.51 -0.62 - G/B (G-Y)/(B-Y) PAL/SECAM matrix measured on G, B outputs PAL DEMpattern -0.15 -0.19 -0.23 - R/Bntsc (R-Y)/(B-Y) NTSC mode, 104° matrix input signal: U = V measured on R, B outputs 0.9 - G/Rntsc (G-Y)/(R-Y) NTSC mode, 104° matrix -0.29 - G/Bntsc (G-Y)/(B-Y) NTSC mode, 104° matrix -0.22 - Symbol Parameter Test Conditions Min. Typ. Max. Unit WPrange White Point Adjustment Range On RGB outputs 6 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit COadjust Cut-off Adjustment Range On Red and green outputs at Typ. drive, no load 420 mV COloop Cut-off Loop Range On RGB outputs 2 2.5 V COlevel Inserted Cut-off Level 1.5 2.5 3.5 V Symbol Parameter Test Conditions Min. Typ. Max. Unit VLEAK Leakage Current Reference Volt- age 3.75 4 V VCOFF Cut-off Current Reference Voltage referred to leakage current refer- ence V LEAK 210 250 290 mV VSBEAM Start Beam Current Detection Ref- erence Voltage 4.1 4.3 V ISOURCE Source Current 150 µA Symbol Parameter Test Conditions Min. Typ. Max. Unit VTH1 Contrast Attenuation Starting 5.75 V VTH2 Brightness Attenuation Starting 5.5 V VTH3 Contrast Attenuation Ending 5.25 V CTRbcl Contrast Attenuation at V TH3 14 dB VTH4 Brightness Attenuation Ending 4.5 V

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS

4.10.11 Automatic RGB Peak Regulation (APR) / RGB Peak Limitation

See Figure 16 on page 42. Note 10: At maximum contrast, APR and RGB peak limitation have the same characteristics. The APR regulation level is tracked on contrast. The RGB peak limitation level is not tracked on contrast. BRIGbcl Brightness Attenuation at V TH4 100 % Clp High Clamping Voltage 6.5 V SAF-thr Safety Threshold 0.8 1 1.2 V SAF-hold Supply Hold Voltage Referred to V CC1 3V Symbol Parameter Test Conditions Min. Typ. Max. Unit APR/RGB Peak Maximum Output Level on RGB outputs when APR/RGB Peak Limi- tation ON WR10 d0 = 1 Contrast Max., drive Max., no load APR threshold Min. (50IRE) APR threshold 70IRE APR threshold Max. (100IRE) (see Note 10) 2.14 3.0 4.28 V i APR-D Discharging Current 5.5 µA iAPR-C Charging Current 5.25 mA GAPRMAX APR max gain APR ON = WR10 d0 = 1 RGB output amplitude with APR ON versus RGB output amplitude with APR OFF +2.5 dB G APRMIN APR min gain APR ON = WR10 d0 = 1 RGB output amplitude with APR ON versus RGB output amplitude with APR OFF -3.0 dB Symbol Parameter Test Conditions Min. Typ. Max. Unit

4.10.12 RGB Outputs

Figure 12. Black Stretch Static Characteristics Figure 13. Auto Flesh Characteristics

4.11 I²C BUS CHARACTERISTICS

4.11.1 SCL

4.11.2 SDA

4.11.3 I²C Timing

Figure 19. I²C Bus Timing

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SPECIFICATIONS

5 I²C BUS SPECIFICATIONS

Data transfers follow the usual I²C format: after the start condition (S), a 7-bit slave address is sent, fol- lowed by an eighth bit which is a data direction bit (W). An 8-bit sub-address is sent to select a register, fol- lowed by an 8-bit data word to be included in the register. The IC’s I²C bus decoder permits the automatic incrementation mode in write mode. The circuit operates up to clock frequencies of 400 kHz. String Format Write only mode (S = start condition, P = stop condition, A = acknowledge) Read only mode Slave Address S SLAVE ADDRESS 0 A SUB-ADDRESS A DATA A P S SLAVE ADDRESS 1 A DATA 0 A DATA 1 A DATA 2 A DATA 3 A P Address A7 A6 A5 A4 A3 A2 A1 A0 Value 1000101X Write Address: 10001010 Read Address: 10001011

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6 I²C BUS SELECTION

6.1 SUMMARY INPUT SIGNALS (WRITE MODE)

“Not-to-be-used” data must be set to “0”. Reg. Addr. (Hex) Data D7 Data D6 Data D5 Data D4 Data D3 Data D2 Data D1 Data D0

00 PIFVCO Free Running Fine Adjustment Not to

Defeat L/L’ Mode NEG/POS Modulation PIFVCO Free Running Coarse Adjustment

02 CVBS Out-

used INTCVBS Output Amplitude Adjustment

03 Tuner AGC gain Tuner AGC Starting Point Adjustment

(Note 1) FM Demod. Defeat FM Deviation and FM De-emphasis, Audio FM Wide mode (Note 1) Main Audio Output selection (int./ext.) Volume Control Curve Volume Control

06 Not to be

(SDIP56) SAW Filter Switch (TQFP64) AGC SIF Time Con- stant Sound Standard Selection PIF VCO compensa- tion

07 Blue Screen

(Note 2) Contrast

08 Oversize

09 CO Blanking RGB

(Note 2) Red Drive Adjustment 0B NTSC Set- up Black Stretch Green Drive Adjustment LSB RED Cut-off Counter CO Freeze Blue Drive Adjustment 0D Manual Cut-off Selection Red Cut-off Adjustment LSB GREEN Cut-off Counter Not to be used Green Cut-off Adjustment 0F White inser- tion ON/OFF CVBS2 ON/OFF Chroma Trap ON/ OFF (Note 1) Coring ON/OFF Peaking White Insertion (Note 2) CRT/LCD Display RGBosd Contrast Selection APR Threshold APR on/off

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION Note 1: Specification changed versus STV223XD/224XC. Note 2: New feature versus STV223XD/224XC.

6.2 SUMMARY OUTPUT SIGNALS (READ MODE)

11 ACCO

Demod. Gain Bell Filter Shift

12 Not to be used Chroma DL

13 Not to be used

tion Crystal Selection 3rd Crystal 14 Flesh Char. Flesh ON/OFF Hue

15 Safety Reset Not to be used SVHS switch Second Video Switch Con-

16 Interlace HOUT

17 50/60Hz Selection Vertical Amplitude Vertical Sync ON/OFF Line Sync ON/OFF PLL1 Time Constant Vertical Position AV Mode Time Constant (Note 2) Copy Protection Mode (Note 2) Wide Line Blanking (Note 2) Not to be Used Noise Detector Threshold Long Blanking Vertical Output Low Level Control 1A Manual Cut-off Register - Red 1B Manual Cut-off Register - Green 1C Manual Cut-off Register - Blue 1D CVBS1out 1E Not to be used AGC SIF Time Constant Not to be used Audio Out (Mono or Sound subcarriers) AVL Luma Delay Shift Not to be used Sound Status Refresh VERT Out- put Inhibition Reg. Addr. (Hex) Data D7 Data D6 Data D5 Data D4 Data D3 Data D2 Data D1 Data D0

00 Chroma Standard

Selection Status Crystal Selection Status Video Ident. Status Field Lock Status 50/60 Hz Status Power ON Reset FM Dem. VCO Cal. Status Scanning VCO Cal. Status Test Not to be Used FBext De- tection Safety Status Horizontal Lock Status Noise Detec- tor Status SVHS Status

02 Cut-off loop status FM Sound Carrier Levels Digital AF Status

Reg. Addr. (Hex) Data D7 Data D6 Data D5 Data D4 Data D3 Data D2 Data D1 Data D0

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3 INPUT SIGNALS (WRITE MODE)

Not used data bits must be set to “0”.

6.3.1 PIFVCO Free Running

6.3.2 PIF Free Running Coarse

6.3.3 PIF Features

Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

00 PIFVCO

X X X PIF Typical + 0.7 MHz. PIF Free Running mid range. PIF Typical - 0.7 MHz. N o t t o b e u s e d 1 XXXXXXX0 Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

01 PIFVCO Free

38.9 MHz Carrier

X X X X X X X X X PIFVCO = F0 + 2.0 MHz. PIFVCO = F0 (mid range). PIFVCO = F0 - 1.8 MHz. PIFVCO Free Running Coarse Adjustment for

33.9 MHz Carrier

(L’) X X X X X X PIFVCO = F0 + 1.3 MHz. PIFVCO = F0 (mid range). PIFVCO = F0 - 1.2 MHz. PIF Modulation 1X X X X X X X X X X X X X X 0 = Negative Modulation. 1 = Positive Modulation. L/L’ Standard Selection X X X X X X X X X X X 0 = L Standard. 1 = L’ Standard. Digital AFC Defeat 1X X X X X X X X X X X X X X 0 = AFC Active. 1 = AFC Defeat (read register 02, d2 d1 d0 = 000). PIF Over-modulation X X X X X X X X X X X X X X 0 = Over-modulation detection off. 1 = Over-modulation regulation active. Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

02 CVBS Output Ampli-

X X X X X X X X VTyp. - 1.6 dB. VTyp. = 1.6 V (black / white). VTyp.+ 1.5 dB. N o t t o b e u s e d 1 XX0XXXXX Overmodulation Reset X X X X X X X X X X X X X 0 = Normal Operating Mode 1 = Overmodulation Reset CVBS Output 10 X X X X X X X X X X X X X X 0 = 2 VPP, no external sound trap. 1 = 2.3 VPP, external sound trap.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3.4 Tuner Delay

6.3.5 SIF Features and Audio Switches

Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

03 Tuner AGC Starting

X X X X X Min. Start point 2 mVRMS at PIF input. Typ. Start point 12 mVRMS at PIF input. Max. Start point 80 mVRMS at PIF input Tuner AGC Gain X X X X X X X X X X X X X X X X X X X X X X X X 50 µA/dB. 95 µA/dB. 170 µA/dB. 270 µA/dB. Reg. Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0 Main Audio Output X X X X X X X X X X X X X X X X X X FM/AM audio selected. External audio selected. MUTE selected. FM De-emphasis Switch and FM de- viation range con- trol X X X X X X X X X X X X X X X X X X X X X X X X Automatic control, according to sound standard. De-emphasis at 75 µs and FM deviation at ±25 kHz. De-emphasis at 50 µs and FM deviation at ±50 kHz. Audio FM Wide mode &50 µs De-emphasis (BGDKI). To be used with 224xH version only in QSS architec- ture. FM Demodulator defeat X X X X X X X X X X X X X 0 = FM Demodulator active. 1 = FM Demodulator defeat, FM out muted. AM/FM output se- lection X X X X X X X X X X X X X 0 = FM output selected. 1 = AM output selected and FM demod OFF. QSS and AM de- modulator defeat 1 X X X X X X X X X X X X X X 0 = QSS and AM demod active, 1 = QSS and AM demod not active (OFF) Intercarrier filter ON/OFF 1 0 X X X X X X X X X X X X X X 0 = Intercarrier filter ON 1 = Intercarrier filter OFF

05 Volume Control

Attenuation, Linear curve (dB) Attenuation = 0 dB. Attenuation = 78 dB. 7-bit resolution. Volume Control Attenuation, Non-linear curve (d0 = 0, d7 = 1) Attenuation = 0 dB. Attenuation = 78 dB. 6-bit resolution.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3.6 Video Controls

06 PIF VCO Compen-

X X X X X X X X X X X X X 0 = Optimized for PIF from 33.9 to 38.9 MHz 1 = Optimized for PIF 45.75 & 58.75 MHz Sound Standard Selection X X X X X X X X X X X X X X X X X X X X X X X 6.5 MHz sound selected. 6.0 MHz sound selected. 5.5 MHz sound selected. 4.5 MHz sound selected. AGC SIF time constant (AM) X X X X X X X X X X X X X 0 = Auto Time constant. 1 = Fast Time constant forced. SAW filter switch output X X X X X X X X X X X X X 0 = output low (0.4 V Max.). 1 = output high (4 V Min.). CVBS output (from PIF circuit) 1 X X X X X X X X X X X X X X 0 = CVBS output enable. 1 = CVBS output muted. QSS/Inter-carrier Application 1 X X X X X X X X X X X X X X 0 = QSS application, intercarrier filter OFF 1 = Intercarrier application N o t t o b e u s e d 1 0XXXXXXX Reg. Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0 Reg. Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0

07 Contrast Control 6X

X X X -24 dB gain (Min. contrast). 0 dB gain (Max. contrast). RGB Peak Limitation X X X X X X X X X X X X X 0 = APR, APR Threshold, tracked with contrast. 1 = RGB Peak Limitation, threshold not tracked with contrast. Note: RGB Peak Limitation active when WR10 d0 = Blue Screen Feature X X X X X X X X X X X X X X 0 = Blue screen OFF. 1 = Blue screen ON.

08 Saturation Control 6X

X X X -40 dB gain (Min. saturation). +9 dB gain (Max. saturation). Half Contrast Ena- ble X X X X X X X X X X X X X 0 = Disabled. 1 = Enabled. Oversize Blanking Enable X X X X X X X X X X X X X X 0 = Disabled. 1 = Enabled.

09 Brightness Control 6X

X X X -30% of B/W at Max. contrast. +30% of B/W at Max. contrast. RGB Blanking 1X X X X X X X X X X X X X X 0 = Not active (normal operation). 1 = Active. Cut-off Blanking X X X X X X X X X X X X X X 0 = Enable: RGB output blanked when I CATH voltage is far from internal cut-off reference (cut-off loop not locked), during IC start-up. 1 = Disable: RGB output not blanked by cut-off loop.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION 0A Red Drive Adjust (White Point R) X X X -6 dB gain (Min. drive). 0 dB gain (Max. drive). RGBext/YCrCb Selection X X X X X X X X X X X X X X X X X X X X X X X X RGB ext. insertion enable controlled by FBext input pin. RGB ext. insertion disable, FBext control disable. RGB ext. insertion forced (FBext not active). YCrCb insertion forced. if WR0F d5 = 0 : Y on Gext (luminance input) and CVBSin (for synchro), Cr on Rext, Cb on Bext. if WR0F d5 = 1 : Y on CVBSin (for luminance and synchro), Cr on Rext, Cb on Bext, trap and luma de- lay disabled. 0B Green drive adjust- ment (white point G) X X X -6 dB gain (Min. drive). 0 dB gain (Max. drive). Black stretch ena- ble X X X X X X X X X X X X X 0 = Black stretch disable. 1 = Black stretch enable. Black Stretch Reference Level 1 0 X X X X X X X X X X X X X X 0 = 0 IRE (no set-up). 1 = 7.5 IRE (NTSC set-up). 0C Blue drive adjust- ment (white point B) X X X -6 dB gain (Min. drive). 0 dB gain (Max. drive). Cut-off loop control 1X X X X X X X X X X X X X X 0 = Cut-off loop active. 1 = Cut-off loop frozen. LSB (9th bit) Red cut-off counter 1 0 X X X X X X X X X X X X X X Red LSB = 0 Red LSB = 1 0D Red cut-off adjust- ment (Black point X X X -150 mV. +150 mV. Manual Cut-off Se- lection X X X X X X X X X X X X Automatic Cut-off application, data = 00hex in registers 1A,1B, 1C. Manual cut-off application DC at R,G,B output are adjusted thanks registers 1A, 1B, 1C. X X X X X X X X X X X X Not allowed. Not allowed. 0E Green cut-off ad- justment (Black point G) X X X -150 mV. +150 mV. N o t t o b e u s e d 1 X0XXXXXX LSB (9th bit) Green cut-off counter 1 0 X X X X X X X X X X X X X X Green LSB = 0 Green LSB = 1 Reg. Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3.7 Chroma Controls

X X X X X X X 0 dB at center Freq. Min. peaking. + 6dB at center Freq.Max. peaking. Coring on sharp- ness X X X X X X X X X X X X X 0 = Coring off. 1 = Coring on. Chroma Trap and Luma Delay Selec- tion X X X X X X X X X X X X X 0 = Trap and Luma Delay Enabled. 1 = Trap and Luma Delay Disabled. CVBS2 ON/OFF 1 X X X X X X X X X X X X X X 0 = CVBS2 output Enabled. 1 = CVBS2 output Disabled. White Insertion 1 0 X X X X X X X X X X X X X X 0 = White insertion not active. 1 = White insertion enable during HOUT soft mode.

10 APR Enable

X X X X X X X X X X X X X 0 = APR disable. 1 = APR enable. Note: WR10 d0 to be set to 1 when RGB peak limi- tation is used APR Threshold 4 X X X X X X X X 50 IRE. 100 IRE. RGB OSD Con- trast Selection X X X X X X X X X X X X X 0 = Contrast control disable. 1 = Contrast control enable. CRT/LCD Display 1 X X X X X X X X X X X X X X 0 = RGB output blanking active, CRT Display 1 = RGB output blanking replaced by black level, LCD Display White Insertion 1 0 X X X X X X X X X X X X X X White Insertion controlled by WR0Fd7 White forced at RGB Output Reg. Addr (Hex) Description Bits Data Comments d7 d6 d5 d4 d3 d2 d1 d0 Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

11 Bell Filter Adjust 5X

X X X X X 0k H z . +100 kHz. PAL/NTSC Demodulation Gain X X X X X X X X X X X X X 0 = 0 dB gain (nominal). 1 = +6 dB gain. NTSC Matrix 1 X X X X X X X X X X X X X X 0 = 90° matrix selection. 1 = 104° matrix selection (in NTSC only). ACC Overload Disable 1 0 X X X X X X X X X X X X X X 0 = ACC overload active. 1 = ACC overload disable.

12 Bandpass adjust 4X

X X X X X X X f = fosc. f = 1.1*fosc. Chroma reference out- put X X X X X X X X X X X X X 0 = Chroma reference output OFF. 1 = Chroma reference output ON. Chroma DL selection 1X X X X X X X X X X X X X X 0 = ON. 1 = OFF. N o t t o b e u s e d 2 00XXXXXX

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3.8 Scanning Controls

X X X X X X X X X X X X X X X X X X X X X X X XTAL1 (4.43/3.5XX MHz). XTAL2 (3.5XX MHz). XTAL3 (3.5XX MHz). Not allowed. Standard Selection X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X PAL. NTSC. SECAM (only with XTAL1). Not allowed. Not allowed. AUTO mode. Not allowed Crystal Inhibition X X X X X X X X X X X X X X X X X X X X X X X Two-crystal, P/S/N application. Three-crystal, P/N application. One-crystal, P/S/N 4.43 MHz application. Two-crystal, P/N application. N o t t o b e u s e d 2 00XXXXXX

14 Hue Control

(in NTSC only) X X X -45°. +45°. Flesh Enable 1X X X X X X X X X X X X X X 0 = Flesh disable (OFF). 1 = Flesh enable (ON). Wide Flesh Charac- Teristic Selection X X X X X X X X X X X X X X 0 = Normal characteristic. 1 = Wide characteristic. Main Video Switch X X X X X X X X X X X X X X X X X X CVBS1 selected. CVBS2 selected. Y/CVBS3 selected. Second Video Switch Control X X X X X X X X X X X X X X X X X X X X X X X CVBS1 selected. CVBS2 selected. Y/CVBS3 selected. Y+C selected. SVHS Switch Chroma Decoder Input Selec- tion X X X X X X X X X X X X X 0 = Main CVBS selected. 1 = CHR input selected (SVHS). N o t t o b e u s e d 2 X00XXXXX Safety Reset 10 X X X X X X X X X X X X X X 0 = Safety active 1 = Reset Safety, Safety non-active Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0 Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

16 Horizontal Shift 6X

X X X -2.5 µs. +2.5 µs. Horizontal Output Pulse Disable X X X X X X X X X X X X X 0 = Normal mode. 1 = HOUT disable (high level). Interlace 10 X X X X X X X X X X X X X X 0 = Interlace mode. 1 = De-interlace mode.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.3.9 Miscellaneous

17 Vertical Amplitude 6 X

X X X 1.5 V on VAMP Pin. 6.0 V on VAMP Pin. 50/60Hz Selection 2 X X X X X X X X X X X X X X X X X X X X X X X X Auto (50 Hz when no ident.). 60 Hz. 50 Hz. Auto (60 Hz when no ident.).

18 Vertical Position 4X

X X X X X X X 4 V high level on VERT Pin. 6 V high level on VERT Pin. PLL1 Time Constant X X X X X X X X X X X X X X X X X X X X X X X Auto time constant selection. Short time constant. Long time constant. Very long time constant. Horizontal Synchronization X X X X X X X X X X X X X 0 = PLL1 active. 1 = PLL1 not active (horiz. free running mode). Vertical Synchronization X X X X X X X X X X X X X X 0 = Vertical synchronization active. 1 = Vertical free running mode.

19 Vertical Output Low

X X X X X X X X X X X X X 0 = 0.1 V low level on VERT Pin. 1 = 2 V low level on VERT Pin. Frame Blanking X X X X X X X X X X X X X 0 = Adapted to standard. 1 = Long blanking (50 Hz blanking) both in 50 Hz and 60 Hz modes Noise Detector Threshold X X X X X X X X X X X Low threshold. High threshold. N o t t o b e u s e d 1 XX00XXXX Wide Line Blanking 1 X X X X X X X X X X X X X X 0 = Standard Line Blanking 1 = Wide Line Blanking Copy Protection Mode 1X X X X X X X X X X X X X X 0 = Normal PLL1 operating mode. 1 = Copy Protection Mode. AV Mode Time Constant X X X X X X X X X X X X X X 0 = PLL1 short time constant during all frames. 1 = PLL1 long time constant during vertical blank- ing, short time constant for the rest of the field. Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0 Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0 1A Manual Cut-off Register Red 8 0 Low DC at RGB output. High DC at RGB output. 1B Manual Cut-off Register Green 8 0 Low DC at RGB output. High DC at RGB output. 1C Manual Cut-off Register Blue 8 0 Low DC at RGB output. High DC at RGB output. 1D CVBS1 Out selection at pin 29 SDIP56 8 CVBSOUT1 selected at pin 29 SDIP56. Default value, set to 0h when CVBSOUT1 not used. 1E Not To Be Used 7 0 0 0 X 0 0 0 0 SIF AGC time constant (positive mod- ulation) 1 0 Automatic SIFAGC Time constant control. Forced Long time constant.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.4 OUTPUT SIGNALS (READ MODE)

X X X X X X X X X X X VERT normal operating. VERT inhibition (forced to high DC level controlled by vertical position register). Sound Level Status Refresh X X X X X X X X X X X 0 = Sound level status continuously refreshed 1 = Sound level status refreshed only at the end of vertical synchronization pulse Not to be used 1 X X X X X 0 X X Luma Delay Shift 1X X X X X X X X X X X X Standard luma delay. 140 ns on luma delay. AVL Control & Status X X X X X X X X X X X X X X X X X X X X X X X AVL OFF, read reg 03h, d7 = AGC Tuner Status AVL OFF, read reg 03h, d7 = AGC Tuner Status AVL ON, read reg 03h, d7 = AVL Gain Status AVL ON, read reg 03h, d7 = AGC Tuner Status reg 04h, d3d2 = 11: AVL Gain Status = 1 (Min.) reg 04h, d3d2 ≠ 11: AVL Gain Status = 0 (Max.) AM/FMOUT pin selec- tion X X X X X X X X X X X X X X X X X X X X Output of AM/FM demodulator. Sound subcarriers selected. Audio output muted. Main audio switch output, either internal or exter- nal audio depending on main audio switch selec- tion. reg 04h; d0 = 0: internal audio. reg 04h; d0 = 1: external audio. Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0 Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

00 Power-on Reset 1X

X X X X X X X X X X X X X Normal mode. Power down mode. Field Frequency 1X X X X X X X X X X X X X X 50 Hz. 60 Hz. Field Lock Status 1X X X X X X X X X X X X X X Not locked. Locked. Video Identification 1X X X X X X X X X X X X X X No identification. Video identification. Standard Status Crystal Selection X X X X X X X X X X X X X X X X X X X X X X X XTAL1 (4.43 MHz). XTAL2 (3.5X MHz). XTAL3 (3.5X MHz). XTAL1 (3.5X MHz). Standard Selection X X X X X X X X X X X X X X X X X X X X X X X X PAL. NTSC. SECAM. COLOR OFF.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

01 SVHS status 1X

X X X X X X X X X X X X X No SVHS (CVBS mode). SVHS mode. Noise detection 1X X X X X X X X X X X X X X High S/N. Low S/N. Scanning Horizontal phase-locked loop status X X X X X X X X X X X X X Not locked. Locked. Safety status 1X X X X X X X X X X X X X X Safety not active. Safety active. Fast Blanking detection on external fast blanking pin X X X X X X X X X X X X X No insertion detected. Insertion on FBext. Test 1X X X X X X X X X X X X X X Not to be used Scanning VCO Calibration X X X X X X X X X X X X X Not calibrated. Calibrated. FM demodulation VCO calibration X X X X X X X X X X X X X X Not calibrated. Calibrated. Digital AFC status X X X X X X X X X X X X X X X X X X X X X X X X F PLL - F0 < -300 kHz. -300 kHz < FPLL - F0 < -60 kHz. -60 kHz < FPLL - F0 < +60 kHz. +60 kHz < FPLL- F0 < +300 kHz. +300 kHz < FPLL - F0. Sound carrier level X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Level 1 (low sound carrier signal). Level 2. Level 3. Level 4. Level 5. Level 6. Level 7. Level 8 (high sound carrier signal) Blue cut-off register and cut-off loop status X X X X X X X X X X X X X X X X X X X X X X X X Blue CO register < 011110000 Blue CO register > 100001111 011110000 < Blue CO register < 100001111 and Icath not locked 011110000 < Blue CO register < 100001111 and Icath locked

03 IC identification 1X

X X X X X X X X X X X X X TQFP64 SDIP56 Tuner AGC Output Status (reg 1Fh, d5d4 = 00 or 01 or 11) X X X X X X X X X X X X X X Tuner AGC Output not active Tuner AGC Output active AVL Gain Status (reg 1Fh, d5d4 = 10) X X X X X X X X X X X X X X AVL Gain Max. (Low audio signal) AVL Gain Min. (High audio signal) Reg. Addr. (Hex) Description Bits Data Commentsd7 d6 d5 d4 d3 d2 d1 d0

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SELECTION

6.5 POWER-ON RESET - INITIAL BUS REGISTER CONDITIONS

Power-On Reset is active when the power supply VCCD is below 3 Volts. All data from all registers must be written by microprocessor after power-on. Unused data must be set to 0. POR values are not tested during production. Reg. Addr. (Hex) Initial Data Value Commentsd7 d6 d5 d4 d3 d2 d1 d0 0 0 10000000P I F V C O f r e e r u n n i n g f i n e a d j u s t m e n t T y p i c a l . 0 1 00000111 PIFVCO coarse typ, BG = 38.9 MHz, Negative modulation, AFC active, no PIF over-modulation regulation. 0 2 00010000C V B S a m p l i t ude Typical, 2VPP. 0 3 00100000T uner AGC starting point Typical, Tuner AGC gain Min. 0 4 00000000 FM/AM out selected, FM de-emphasis and FM deviation auto-control, FM demod. active, FM out selected, QSS and AM demod. active. 0 5 01111111V o l u m e c o n t r o l a t t e n u a t i o n a t m a x i m u m , l i n e a r c u r v e ( d B ) . 0 6 00000000 PIF < 42 MHz, 6.5 MHz sound carrier selected, auto AGC SIF time constant, saw filter switch control at low level, CVBS out enabled, QSS mode. 0 7 00100000C o n t r a s t a t m i d d l e , b l u e s c r e e n d i s a b l e d . 0 8 00100000S a t u r a t i o n a t m i d d l e , h a l f c o n t r a s t d i s a b l e d , o v e r s i z e b l a n k i n g d i s a b l e d . 0 9 00100000B r i g h t n e s s a t m i d d l e , R G B B l a n k i n g n o t a c t i v e . 0 A 00100000R e d d r i v e a t m i d d l e , R G B e x t i n s e r t i o n e n a b l e d ( F B e x t P i n c o n t r o l ) . 0 B 00100000G r e e n d r i v e a t m i d d l e , b l a c k s t r e t c h d i s a b l e d , b l a c k s t r e t c h r e f 0 I R E . 0 C 00100000 B l u e d r i v e a t m i d d l e , c u t - o f f l o o p a c t i v e . 0 D 00100000R e d c u t - o f f a t m i d d l e , a u t o m a t i c c u t - o f f l o o p . 0 E 00100000G r e e n c u t - o f f a t m i d d l e .

0 F 00001000 Peaking on luma at middle, coring off, trap ON (CVBS & color identified), CVBS2

ON, white insertion not active. 1 0 00010000A P R d i s a b l e d , A P R t h r e s h o l d a t m i d d l e , R G B O S D c o n t r a s t d i s a b l e d . 1 1 00000000 No shift of bell filter center frequency, 0dB P/N demod. gain, 90° matrix selection, ACC overload ON. 1 2 00000000 No shift of bandpass center frequency, chroma reference output off, chroma delay line on. 1 3 00000000T w o c r y s t a l s a p p l i c a t i o n P / S / N , P A L X T A L 1 f o r c e d m o d e , t w o c r y s t a l a p p l i c a t i o n s . 1 4 00100000H u e a t m i d d l e , f l e s h d i s a b l e d , n o r m a l f l e s h c h a r a c t e r i s t i c . 1 5 00000000 CVBS1 selected on main CVBS output, CVBS1 selected on second CVBS output, CVBS mode. 1 6 00100000H o r i z o n t a l s h i f t a t m i d d l e , h o r i z o n t a l o u t p u t e n a b l e d , i n t e r l a c e m o d e . 1 7 00100000V e r t i c a l a m p l i t u d e a t m i d d l e , a u t o 5 0 / 6 0 H z i d e n t i f i c a t i o n . 1 8 00001000 Vertical position at middle, automatic time constant selection on PLL1, PLL1 active, Vertical synchronization active. 1 9 00000000 0.1 V low level at pin VERT, frame blanking adapted to standard, noise detector low threshold. 1 A 00000000N o t a c t i v e , a u t o c u t - o f f . 1 B 00000000N o t a c t i v e , a u t o c u t - o f f . 1 C 00000000N o t a c t i v e , a u t o c u t - o f f .

1 D 00000000R - Y o u t p u t a t p i n 2 9 ( S D I P 5 6 )

1 E 00000000N o t t o b e u s e d , e x c e p t d 4 : A u t o . S I F A G C t i m e c o n s t a n t c o n t r o l i n L / L ’ s t a n d a r d s . 1 F 00000000V E R T p u l s e a c t i v e , s t a ndard luma delay, AVL off, AM/FM mono sound selected.

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - I²C BUS SPECIFICATION COMPATIBILITY

7 I²C BUS SPECIFICATION COMPATIBILITY

The STV2246H/36H, 2286H, 2247H/37H, 2248H/ 38H and 2249H/39H I²C bus specification is com- patible between IC version. However, some dedi- cated settings must be used for the different ver- sions. The following sections show the differences between the various versions. An “X” means that the function is available and can be set to “1” or “0”. Note 1: The FBEXT pin must be connected to ground. CAUTION: The specification of WR04 d3:2 has changed. For 224XC versions (refer to STV224XC datasheet), WR 04 d3:2 = 11 (bin.) means that FM demod de- emphasis is bypassed. This function is used for BTSC application compatibility. For 224XD/XE versions, WR04 d3:2 = 11: NOT TO BE USED. For 224XH versions, WR04 d3:2 = 11 (bin.) means that Audio FM Wide mode is selected and it must be used in QSS applications only. In this case, the following registers must be programmed: WR04 d3:2 = 11 (bin.) (Audio FM Wide mode) WR06 d6 = 0 (QSS application) WR1F d5:4 = 1x (bin.) (AVL ON) CAUTION: The specification of WR07 d6 has changed. For 224XC/224XD versions, WR07 d6 = 1 means “inserti on of cut-off pulses after a vertical oversize blanking” For 224XE/XH versions, WR07 d6 = 1 means “RGB peak limitation” CAUTION: The specification of WR0F d5 has changed. The new specification is: WR0F d5 = 0: trap and luma delay active; this is not changed WR0F d5 = 1: trap and luma delay disabled (bypass); this is changed 2248H/38H 2249H/39H 2247H/37H 2246H/36H 2286H RGBext WR0A d7:6 XXXX 0 1 1 L/L' mode WR01 d5 X0000 Positive/Negative Modulation WR01 d4 X0000 FM/AM Output Selection WR04 d5 X0000 Bell Filter WR11 d4:0 X X 00000 00000 00000 QSS/Intercarrier Application WR06 d6 XXX11 QSS and AM defeat WR04 d6 XXX11 AGC SIF Time Constant WR06 d3 & WR1E d4 XXXX 0 0 CVBSout amplitude WR02 d4:0 X X X X 10000

8 INPUT/OUTPUT SCHEMATIC DIAGRAMS

Figure 20. Ground and Supply Voltages Figure 21. Main Audio Output

Figure 22. Scanning PLL Filter

Figure 45. Cathode Current Measurement Input

Figure 46. OSD RGB Inputs

Figure 57. Line Flyback Input and Super-Sandcastle Output

9 APPLICATION DIAGRAMS

Figure 58. STV2246H

Figure 59. STV2247H

Figure 60. STV2248H

Figure 61. STV2238H (TQFP64)

Obsolete Product(s) - Obsolete Product(s) STV224X, STV228X, STV223X - THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE

10 THERMAL CONSIDERATIONS FOR TQFP64 PACKAGE

Proper cooling of the STV223XH circuit (TQFP64 package) requires particular care. The value of RthJA given in the datasheet corresponds to the following condition: The circuit is soldered ABOVE a printed circuit board (with as much ground plane as possible) and it ex- changes freely with its environment by natural convection and radiation. This 'ideal' condition may not be possible in a real TV set environment and RthJA may increase above the given value. In particular, the worst case is when the circuit is soldered BELOW the chassis board in a confined volume between the chassis board and the bottom of the TV box. In this case, RthJA may increase. Recommendations: ■ to perform a quick theoretical temperature evaluation before making the chassis board ■ later on, to perform detailed temperature measurements on the chassis board, in its real environment Thermal data given in the data sheet allows an estimation of junction and case temperatures to be made. For estimation on pin temperature, the following additional data, derived from a measurement on a typical chassis, can be used: RthJP ~ 20°C/W; Example of temperatures ESTIMATION: (Reminder: only in the case where the circuit is soldered ABOVE the chassis board in a relatively 'free' en- vironment). Dissipated power: Pd = 1.3W. Ambient temperature : Ta = 60°C (inside the TV set). Junction temperature: Tj = Ta + RthJA * Pd = 125°C. Case temperature: Tc = Tj - RthJC * Pd = 112°C. Pins temperature: Tp = Tj - RthJP * Pd = 99°C.

11 GENERAL PACKAGE INFORMATION

11.1 PACKAGE MECHANICAL DATA

Figure 62. 56-Pin Shrink Plastic Dual In Line Package, 600-mil Width Figure 63. 64-Pin Thin Quad Flat Package

12 REVISION HISTORY

Table 2. Document Revision History 15-Apr-2003 1 Initial release. 05-Feb-2004 2 Added TQFP64, STV223XH version. 21-Apr-2004 3 TQFP64 thermal and mechanical data added. Minor corrections, typos, alignment etc. 08-Sep-2009 4 Added device summary on cover page.