M52334

M52334FP MITSUBISHI | Alldatasheet

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MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC

DESCRIPTION

The M52334FP is IF signal-processing IC for VCRs and TVs. It enable the PLL detection system despite size as small as that of conventional quasi-synchronous VIF/SIF detector, IF/RF AGC, SIF limiter and FM detector.

FEATURES

Video detection output is 2V P-P . It has built-in EQ AMP . The package is a 20-pin flat package, suitable for space saving. The video detector uses PLL for full synchronous detection circuit. It produces excellent characteristics of DG, DP , 920kHz beat, and cross color. Dynamic AGC realizes high speed response with only single filter. Video IF and sound IF signal processings are separated from each other. VCO output is used to obtain intercarrier. As AFT output voltage uses the APC output voltage, VCO coil is not used. Audio FM demodulation uses PLL system, so it has wide frequency range with no external parts and no adjustment. This IC corresponds to only inter of NTSC system. APPLICATION TV sets, VCR tuners RECOMMENDED OPERATING CONDITION In case of V CC and Vreg. out short Incase of Vreg. out open PIN CONFIGURATION (TOP VIEW) Outline 20P2N-A 165 156 147 138 129 1110 GND RF AGC DELAY VIF IN AUDIO OUT AFT OUT VIF IN RF AGC OUT EQ IN VCO COIL Vreg. OUT SIF GND VCO COIL APC FILTER LIMITER IN VIDEO OUT EQ OUT EQ F/B NFB VCC IF AGC FILTER M52334FP BLOCK DIAGRAM Vcc REG EQ AMP 20 19 18 17 16 15 14 12 11 2 3 6 8 10 VIDEO DET FM DET AF AMP LIM AMP RF AGC APC VIF AMP VCO AFT 971 GND RF AGC DELAY VIF IN AUDIO OUTAFT OUT VIF IN RF AGC OUT EQ IN VCO COILVreg. OUT SIF GNDVCO COIL APC FILTER LIMITER INVIDEO OUT EQ OUT EQ F/B NFB VCC IF AGC FILTER IF AGC

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC ABSOLUTE MAXIMUM RATINGS (Ta=25 C, unless otherwise noted)

ELECTRICAL CHARACTERISTICS

=9V, Ta=25 C, unless otherwise noted) Symbol Parameter Condition Ratings Unit V CC Supply voltage1 V CC and Vreg. out is not connected to each other. 13.2 V Vreg OUT Supply voltage Vreg. OUT V CC and Vreg. out is not connected to each other. 6.0 V P d Power dissipation 1225 mW T opr Operating temperature -20 to +85 C T stg Storage temperature -40 to +150 C Surge Surge voltage resistance Surge protection capacitance 200pF resis- tance 0 W – 200 V Symbol Parameter Test circuit Test point Input point Input SG Measurement condition Limits Unitswitches set to position 1 unless otherwise indicatedMin. Typ. Max. VIF section I CC1 Circuit current1 V CC =5V 1A V CC =5V SW4=2, SW7=2 33 40.5 47 mA I CC2 Circuit current2 V CC =12V 1A V CC =12V SW7=2 31 40.5 49 mA V CC2 Vreg voltage2 1 TP4 V CC =12V 4.7 5.00 5.3 V V1 Video output DC voltage1 1 TP1A SW13=2 V13=0V 3.45 3.9 4.35 V Vo det8 Video output voltage8 1 TP8 VIF IN SG1 0.85 1.1 1.35 V P-P Vo det Video output voltage1 1 TP1A VIF IN SG1 1.85 2.2 2.55 V P-P Video S/N Video S/N 1 TP1B VIF IN SG2 SW1=2 51 56 dB BW Video band width 1 TP1A VIF IN SG3 SW13=2 V13=variable 5.0 7.0 MHz VIN MIN Input sensitivity 1 TP1A VIF IN SG4 48 52 dB m VIN MAX Maximum allowable input 1 TP1A VIF IN SG5 101 105 dB m GR AGC control range input ---- 50 57 dB V13 IF AGC voltage 1 TP13 VIF IN SG6 2.85 3.15 3.45 V V13H Maximum IF AGC voltage 1 TP13 4.0 4.4 V V13L Minimum IF AGC voltage 1 TP13 VIF IN SG7 2.2 2.4 2.6 V V14H Maximum RF AGC voltage 1 TP14 VIF IN SG2 SW13=2 V13=4V 8.0 8.7 V V14L Minimum RF AGC voltage 1 TP14 VIF IN SG2 SW13=2 V13=1V 0.1 0.5 V V14 RF AGC operation voltage

1 TP14 VIF IN SG8 86 89 92 dB

m CL-U Capture range U 1 TP1A VIF IN SG9 0.8 1.3 MHz CL-L Capture range L 1 TP1A VIF IN SG9 1.4 2.0 MHz CL-T Capture range T 1 2.5 3.3 MHz m AFT sensitivity 1 TP19 VIF IN SG10 20 30 70 mV/kHz V19H AFT maximum voltage 1 TP19 VIF IN SG10 7.7 8.2 V V19L AFT minimum voltage 1 TP19 VIF IN SG10 0.7 1.2 V AFT def1 AFT defeat 1 1 TP19 VIF IN 4.2 4.5 4.8 V IM Inter modulation 1 TP3A VIF IN SG11 SW13=2 V13=variable 35 42 dB DG Differential gain 1 TP3A VIF IN SG12 2 5 % DP Differential phase 1 TP3A VIF IN SG12 2 5 deg SYNC Sync. tip level 1 TP3A VIF IN SG2 1.0 1.4 1.8 V RINV VIF input resister 2 TP17 1.2 k W CINV VIF input capacitance 2 TP17 pF

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC (cont.) Symbol Parameter Test circuit Test point Input point Input SG Measurement condition Limits Unitswitches set to position 1 unless otherwise indicated Min. Typ. Max. SIF section V1 AF output DC voltage 1 TP11 3.5 4.4 5.3 V VoAF AF output 1 TP11 SIF IN SG16 565 790 1125 mVrms THD AF AF output distortion 1 TP11 SIF IN SG16 0.4 0.9 % LIM Limiting sensitivity 1 TP11 SIF IN SG17 42 55 dB m AMR AM rejection 1 TP11 SIF IN SG18 55 65 dB AF S/N AF S/N 1 TP11 SIF IN SG19 55 65 dB ELECTRICAL CHARACTERISTICS TEST METHOD Video S/N Input SG2 into VIF IN and measure the video out (Pin 3) noise in BW Video band width 1. Measure the 1MHz component level of EQ output TP3A with a spectrum analyzer when SG3 (f2=44.75MHz) is input into VIF IN. At that time, measure the voltage at TP13 with SW13, set to position 2, and then fix V13 at that voltage. 2. Reduce f2 and measure the value of (f2-f0) when the (f2-f0) component level reaches -3dB from the 1MHz component level as shown below. VIN MIN Input sensitivity Input SG4 (Vi=90dB m ) into VIF IN, and then gradually reduce Vi and measure the input level when the 20kHz component of EQ output TP3A reaches -3dB from Vo det level. VIN MAX Maximum allowable input 1. Input SG5 (Vi=90dB m ) into VIF IN, and measure the level of the 20kHz component of EQ output. 2. Gradually increase the Vi of SG and measure the input level when the output reaches -3dB. GR AGC control range GR=VIN MAX-VIN MIN (dB) V18 RF AGC operating voltage Input SG8 into VIF IN, and gradually reduce Vi and then measure the input level when RF AGC output TP14 reaches 1/2 V CC , as shown below. CL-U Capture range 1. Increase the frequency of SG9 until the VCO is out of locked- oscillation. 2. Decrease the frequency of SG9 and measure the frequency fU when the VCO locks. CL-U=fU-45.75 (MHz) CL-L Capture range 1. Decrease the frequency of SG9 until the VCO is out of locked- oscillation. 2. Increase the frequency of SG9 and measure the frequency fL when the VCO locks. CL-L=45.75-fL (MHz) CL-T Capture range CL-T=CL-U+CL-L (MHz) S/N=20 log 0.7·Vo det NOISE (dB) TP18 -3dB 1MHz BW ( f2 - f0 ) TP18 Vi V18H Vi (dBm) V18L 1/2VCC Voltage

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC m AFT sensitivity, V 19H AFT maximum voltage, V 19L AFT minimum voltage 1. Input SG10 into VIF IN, and set the frequency of SG10 so that the voltage of AFT output TP19 is 5V. This frequency is named f(3). 2. Set the frequency of SG10 so that the AFT output voltage is 4V. This frequency is named f (2) 3. IN the graph, maximum and minimum DC voltage are V 19H and V 19L , respectively. IM Intermodulation 1. Input SG11 into VIF IN, and measure EQ output TP3A with an oscilloscope. 2. Adjust AGC filter voltage V13 so that the minimum DC level of the output waveform is 1.0V. 3. At this time, measure, TP3A with a spectrum analyzer. The intermodulation is defined as a difference between 0.92MHz and 3.58MHz frequency components. LIM Limiting sensitivity 1. Input SG17 (Vi=90dB m ) into SIF input, and measure the 400Hz component level of AF output TP11. 2. Lower the input level of SG17, and measure the level of SG17 when the VoAF level reaches -3dB. AMR AM Rejection 1. Input SG18 into SIF input, and measure the output level of AF output TP11. This level is named VAM. 2. AMR is; AF S/N 1. Input SG19 into SIF input, and measure the output noise level of AF output TP11. This level is named VN. 2. S/N is; THE NOTE IN THE SYSTEM SETUP M52334FP has 2 power supply pins of Vcc (pin 7) and Vreg. OUT (pin 4). Pin 7 is for AFT output, RF AGC output circuits and 5V regulated power supply circuit and Pin 4 is for the other circuit blocks. In case M52334FP is used together with other ICs like VIF operating at more than 5V, the same supply voltage as that of connected ICs is applied to V CC and Vreg. Out is opened. The other circuit blocks, connected to Vreg. OUT are powered by internal 5V regulated power supply. In case the connecting ICs are operated at 5V, 5V is supplied to both V CC and Vreg.OUT. INPUT SIGNALf (3) f (2) f (MHz) V19L V19H TP19 Voltage m = 1000 (mV) f (2) - f (3) (kHz)(mV/kHz) AMR=20log VoAF (mVr.m.s) VAM (mVr.m.s) (dB) SG No. Signals (50 W termination) =45.75MHz AM20kHz 77.8% 90dB m =45.75MHz 90dB m CW 3 f =45.75MHz 90dBm CW (Mixed signal) f2=Frequency variable 70dBm CW (Mixed signal) 4f 0=45.75MHz AM20kHz 77.8% level variable 5f 0=45.75MHz AM20kHz 14.0% level variable 6f 0=45.75MHz 80dBm CW 7f 0=45.75MHz 110dBm CW 8f 0=45.75MHz CW level variable 9f 0=Variable AM20kHz 77.8% 90dBm 10 f 0=Variable 90dBm CW f1=45.75MHz 90dBm CW (Mixed signal) f2=42.17MHz 80dBm CW (Mixed signal) f3=41.25MHz 80dBm CW (Mixed signal) f0=45.75MHz 87.5% TV modulation ten-step waveform Sync tip level 90dBm 13 f 1=41.25MHz 103dBm CW 14 f 1=41.25MHz 70dBm CW 15 f1=45.75MHz 90dBm CW (Mixed signal) f2=41.25MHz 70dBm CW (Mixed signal) 16 f 0=4.5MHz 90dBm FM400Hz –25kHz dev 17 f 0=4.5MHz FM400Hz –25kHz dev level variable 18 f 0=4.5MHz 90dBm AM400Hz 30% 19 f 0=4.5MHz 90dBm CW S/N=20log VoAF (mVr.m.s) VN (mVr.m.s) (dB)

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC TEST CIRCUIT 2.2VP-P VIDEO OUT AFT 2 3 68 1045 9 71 20 19 18 15 12 111317 16 14 RF AGC IF IN Vcc REG EQ AMP VIDEO DET FM DET AF AMP LIM AMP RF AGC APC VIF AMP VCO AFT IF AGC OUT VCC Vreg. OUT RF AGC Delay OUT AF OUT EQ OUT VCC TYPICAL CHARACTERISTICS AMBIENT TEMPERATURE Ta ( °C) 0 25 50 75 100 125 250 500 750 1000 1750 150-20 1250 1500 637 THERMAL DERATING (MAXIMUM RATING) POWER DISSIPATION P d (mW) 1225

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC APPLICATION EXAMPLE 1 * All capacitor is 0.01mF, unless otherwise specified. * The Measuring Circuit 1 is Mitsubishi standard evaluation fixture. Units Resistance : W Capacitance : F 0.1m L P FTP1A TP1B 33m VCO COIL 2SW4 2 A VCC TP8 SIF IN TP11 7.5k 0.1m TP13 SW13 0.22m V13 1:1 TP18 150k 150k TP19 33k 27k TP20 2 3 68 1045 9 71 20 19 18 15 12 111317 16 14 TP14 VIF IN Vcc REG EQ AMP VIDEO DET FM DET AF AMP LIM AMP RF AGC APC VIF AMP VCO AFT IF AGC SW3 5540 SW7

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC APPLICATION EXAMPLE 2 Vcc REG EQ AMP VIDEO DET FM DET AF AMP LIM AMP RF AGC APC VIF AMP VCO AFT IF AGC * All capacitor is 0.01mF, unless otherwise specified. TP17 HI LO RXmeter 2 3 68 1045 9 71 20 19 18 15 12 111317 16 14 33mF

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC Pin 1 (RF AGC DELAY) Pin 2 (APC FILTER) Pin 3 (EQ INPUT) Pin 4 (REG. OUTPUT) 1.4VO-P internal driving current : 3mA An output amplitude is positive 2.2VP-P in the case of 87.5% video modulation. 12kW Bias In the locked state, the cut-off frequency of the filter is adjusted effectively by an external resistor so that it will be in the range of around 30 to 200kHz. In case the cut-off frequency is lower, the pull-in speed becomes slow. On the other hand, a higher cut-off frequency widen the pull-in range and band width, which results design, the appropriate constant should be chosen for getting desirable performance considering above conditions. [V2] fo 3.0VO-P [IF input frequency] 100kHz [Pin 2 output] [FM mod. frequency] in a degradation in the S/N ratio. So, in the actual TV system It is an open-base input. The IF AGC does not work correctly, unless a DC element of pin 8 output is applied to it. 10.5kW 3.8kW It is a regulated 5V output which has current drive capability of approximately 10mA.

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC Pin 5, Pin 6 (VCO COIL) Pin 7 (VCC ) Pin 8 (VIDEO OUTPUT) Pin 9 (GND) 850W 850W 466W 466W Connecting a tuning coil and capacitor to these pins enables The tuning capacitor of about 30pF is recommended. The oscillation frequency is tuned in f0. In the actual adjustment, the coil is tuned so that the AFT voltage is reached to Vcc/2 with f0 as an input. The printed pattern around these pins should be designed carefully to prevent an pull-in error of VCO, caused by the leakage interference from the large signal level oscillator to adjacent pins. The interconnection should be designed as short as possible. In case the printed pattern has the interference problem, a capacitor of about 1pF is connected between pin 5 or 6 and GND so as to cancel the interference and keep enough pull-in range even an oscillation. in a weak electric field. VCC The recommended supply voltage is 5V or 9 to 12V. In the case of 5V supply, it should be tied to pin 17. In the case of 9 to 12V supply, a regulated output of 5V are available in pin 17. internal driving current : 2mA An output amplitude is positive 2VP-P in the case of 87.5% video modulation. It is ground (GND) for the SIF.

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC Pin 10 (LIMITER INPUT) Pin 11 (AF OUTPUT) Pin 12 (AUDIO F/B) Bias 2kW 2kW The input impedance is 2kW . Terminal voltage : 2.2V internal driving current : 1mA The FM detector can respond to the 4.5MHz intercarrier signal without an adjustment and external components by The output DC voltages of 4.4V0-P and 2.4V0-P are in the Since its output frequency is more than 100kHz in no loading condition, it can also respond to the multi audio adopting the PLL technique. Vcc of 9V and 5V, respectively. broadcasting. 50kW 50kW Terminal voltage : 3.0V The frequency response of the audio output is set by the external capacitor of pin 12. 100kHz [Pin 11 output] [FM mod. frequency] In the case of 0.1mF, the cut-off frequency is 35Hz. Connecting series resistor to the capacitor above, can reduce an audio output amplitude.

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC Pin 13 (IF AGC FILTER) Pin 14 (RF AGC OUTPUT) Note: Connecting a nonpolarity capacitor of 1mF between pin14 and pin 18 improves AGC operating speed. In that case, the capacitors between pin14/pin18 and ground should be removed. Pin 15 (GND) Pin 16, Pin 17 (VIF INPUT) 1kW VCC [IF input] weak electric field strong electric field [V8] In spite of the 1-pin filter configuration, 2-pin filter characteristics are available by utilizing the dynamic AGC circuit. VCC [IF input] (in open-loop condition) weak electric field strong electric field A current mode output is available in the reverse AGC operation. The maximum inflow current is 0.2mA.

14 Tuner

[V14] The maximum outflow current is 0.2mA. It is GND pin except for SIF. It should be designed considering careful impedance SAW Bias 1.2kW Terminal voltage : 1.45V 1.2kW matching with the SAW filter.

MITSUBISHI ICs (TV) M52334FP PLL-SPLIT VIF/SIF IC Pin 18 (RF AGC DELAY) Pin 19 (AFT OUTPUT) In the case of 5V supply, it should be considered that the maximum AFT and RF AGC output are less than 4.2V and 4.7V, respectively. Pin 20 (EQ F/B) VCC An applied voltage to the pin1 is for changing a RF AGC delay point. In the 3-in-1 type* application, the regulated output from the regulator is suitable for a power supply (Vcc) to it, because there may be difference between the tuner and main board supply. * TV tuner, VIF demodulator and RF modulator are togetherin one package. VCC Tuner The maximum outflow current is 0.2 mA. The maximum inflow current is 0.2 mA. Since an AFT output is provided by a high impedance source, the detection sensitivity can be set by an external resistor. The muting operation will be on in following two cases; 1) the APC is out of locking, 2) the video output becomes small enough in a weak electric field. [fo] Vcc Vcc (in open-loop condition) [V2] 16.8kW 500W 3.9kW 3.1kW Both the external coil and capacitor determine the frequency response of EQ output. The series connected resistor is for damping.