44BC374

MC44BC373 MOTOROLA | Alldatasheet

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MC44BC373DTB,R2 MC44BC374DTB,R2 –10oC to +80oC TSSOP24 NOTE: For tape and reel, add R2 suffix. This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. © Motorola, Inc., 2003. All rights reserved. MC44BC373/374 These modulator ICs are for use in VCRs, games, set-top boxes, and similar devices. Figure 1 shows the pin connections. Figure 1. MC44BC373/374 Pin Connections

12 VCCI

Contents

4 Electrostatic Discharge 5

8 Modulator High

9 Video Characteristics . 10 10 Audio Characteristics . 11

11 Antenna Booster/Splitter

12 Modulator Operation . 14

13 High-Speed I2C

Rev. 3.5, 7/2003 MC44BC373/374 Multi-Standard or PAL/ NTSC Modulator with integrated antenna booster/splitter ICs Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

2 MC44BC373/374 Technical Data MOTOROLA

Features

1 Features

MC44BC373: Multi-Standard PAL/SECAM/NTSC with integrated booster splitter MC44BC374: PAL/NTSC with integrated booster splitter The channel is set by an on-chip high-speed I2C compatible bus receiver. A Phase-Locked Loop (PLL) tunes the modulator over the full UHF range. The modulator incorporates a sound subcarrier oscillator and uses using the bus. The picture-to-sound ratio is adjusted using the bus. In addition, an on-chip video test pattern generator can be switched ON using a 1kHz audio test signal. Along with the modulator functions, an Antenna Booster/Splitter function is included. These modulator versions are completely pin-to-pin and software compatible and all versions have the following features.

• No external varicaps diodes/inductors or tuned components  Channel 21–69 UHF operation  VHF range possible by internal dividers (30MHz to 450MHz)  Integrated on-chip programmable UHF oscillator  Extremely low external component count  High-speed read and write I 2C-bus compatible (800kHz)  Fixed video modulation depth (80% in PAL and 90% in SECAM)  Peak White Clip disabled using the bus  Programmable picture/sound carrier ratio (12dB and 16dB)  Integrated on-chip programmable sound subcarrier oscillator (4.5MHz to 6.5MHz)—No external varicaps  On-chip video test pattern generator with sound test signal (1kHz)  Low-power programmable modulator standby mode (booster active)  Transient output inhibit during PLL Lock-up at Power-ON  Logical Output Port controlled by bus  Integrated Antenna Booster/Splitter (40MHz to 860MHz)  Custom masked versions with unique start-up settings possible (no I2C bus programming required)  Extremely robust ESD protection, minimum 4kV , typical 6kV Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

MOTOROLA MC44BC373/374 Technical Data 3

2 Device Overview

Figure 2 shows a simplified block diagram of the MC44BC373/4 device. The MC44BC373/374 device contains four main sections: 1. A high-speed I 2C-compatible bus section. 2. A PLL section — Synthesizes the UHF/VHF output channel frequency (from an integrated UHF oscillator, divided for VHF output). 3. A modulator section — Accepts audio and video inputs and then uses those inputs to modulate the UHF/VHF carrier. 4. An Antenna Booster/Splitter — Amplifies and splits the antenna signal into two signals: a) The modulated signal is added to the amplified antenna signal on the TVOUT pin. The following items are programmable using the high-speed I 2C compatible bus:  Channel frequency  Sound frequency  Sound/picture carrier ratio An on-chip video test pattern generator with an audio test signal is included. The MC44BC373 operates as a multi-standard modulator and can handle the following systems using the same external circuit components: B / G D / K M / N The high frequency BiCMOS technology permits integration of the following functions:  Antenna Booster/Splitter  UHF tank circuit and certain filtering Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

4 MC44BC373/374 Technical Data MOTOROLA

Figure 2. Simplified Block Diagram—MC44BC373/37475Ω Freescale Semiconductor, Inc.

MOTOROLA MC44BC373/374 Technical Data 5

3 Maximum Ratings

4 Electrostatic Discharge

5 Electrical Characteristics

 A = 100% Tested  B = 100% Correlation tested  C = Characterized on samples  D = Design parameter

5.1 Specification Conditions

Unless otherwise stated: V cc =5.0V, Ambient Temperature=25 o C, Video Input 1V p-p, 10-step grayscale. RF inputs/outputs into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION. Sym Parameter Min Typ Unit ESD HBM (Human Body Model) — MIL-STD-883C, Method 3015-7 4000 6000 V Parameter Min Typ Max Unit Notes Type Operating supply voltage range 4 .55 .05 .5V B Total supply current 65 75 88 All sections active A Total standby mode supply current 26 34 40 mA OSC, SO, ATT=1 Bus Section active A Test pattern sync pulse width 3 4 .76 .5 µSB Sound comparator charge pump current During locking When locked 0.7 1.5 µA µA A A RF comparator charge pump current 60 100 150 µAA Crystal oscillator stability-negative resistance 1 —— KΩ D Logic Output Port Saturation voltage at I=2mA Leakage current 160 300 mV µA A A Sym Parameter Value Unit Vcc1 Supply Voltage 6 V Tamin Minimum Operating Ambient Temperature –10 oC Tamax Maximum Operating Ambient Temperature 75 oC Tstgmin Minimum Storage Temperature –65 oC Tstgmax Maximum Storage Temperature 150 oC This device contains protection circuitry to guard against damage due to high static voltage or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high impedance circuit. For proper operation, input and output voltages should be constrained to the ranges indicated in the Recommended Operating Conditions. Maximum ratings are those values beyond which damage to the device may occur. For functional operation, voltage should be restricted to the Recommended Operating Condition. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

6 MC44BC373/374 Technical Data MOTOROLA

6 I2C Bit Mapping

WRITE MODE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK C A - C H I P A D D R E S S 11001010 A C K C1-High Order Bits 1 AUX SO LOP PS X3 X2 SYSL ACK C0-Low Order Bits PWC OSC ATT SFD1 SFD0 TB1 X5 X4 ACK FM-High Order Bits 0 TPEN N11 N10 N9 N8 N7 N6 ACK FL-Low Order Bits N5 N4 N3 N2 N1 N0 X1 X0 ACK R E A D M O D E B i t 7B i t 6B i t 5B i t 4B i t 3B i t 2B i t 1B i t 0A C K C H I P A D D R E S S 11001011 A C K R-Status Byte ————— Y2 Y1 OOR — Bit Name Description PWC Peak White Clip enable/disable. OSC UHF oscillator ON/OFF. ATT Modulator output attenuated-sound and video modulators ON/OFF. SFD0, 1 Sound subcarrier frequency control bits. TB1 Test mode bit — bus format compatible with MC44353. AUX Auxiliary sound input enable/disable. SO Sound Oscillator ON/OFF. LOP Logic Output Port. PS Picture-to-Sound carrier ratio. SYSL System L enable — selects AM sound and positive video modulation (MC44BC373/ only). TPEN Test pattern enable — picture and sound. X5… X0 Test mode bits — All bits are 0 for normal operation (see Test Mode tables, page 7 & page 8). N0… N11 UHF frequency programming bits, in steps of 250kHz. OOR RF oscillator out-of-frequency range information. Y1, Y2 RF oscillator operating range information. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

MOTOROLA MC44BC373/374 Technical Data 7

7 I2C Programming

WRITE MODE: Test Mode 1 and VHF Range X2 X1 X0 State Description 000 1 .a Normal operation. 001 1 .b RF frequency divided for low frequency testing or VHF range: RF/2 010 1 .cR F / 4 011 1 .dR F / 8 100 1 .eR F / 1 6 101 1 .f DC drive applied to modulators: non-inverted video at TVOUT. 110 1 .g DC drive applied to modulators: inverted video at TVOUT. 111 1 .h Transient output inhibit disabled. Sound Video SFD1 SFD0 Sound Subcarrier Freq (MHz) 00 4 .5 01 5 .5 10 6 .0 11 6 .5 PS Picture-to-Sound Ratio (dB) 01 2 11 6 SO Sound Oscillator 0 Sound oscillator ON (normal mode).

1 Sound oscillation disabled (oscillator and PLL

section bias turned OFF). AUX Auxiliary Audio Input 0 AUX input disabled (normal mode). 1 AUX input enabled. SYSL System L and B/G Selection MC44BC373 only

0 System B/G enabled, System L disabled

(FM sound and negative video modulation).

1 System L enabled, System B/G disabled

(AM sound and positive video modulation). PWC Peak White Clip 0 Peak White Clip ON (System B/G). 1 Peak White Clip OFF (System L). TPEN Test Pattern Signal 0 Test pattern signal OFF (normal operation). UHF Standby Mode MC44353/4/5 Compatibility Logic Output Port OSC UHF Oscillator 0 Normal operation.

1 UHF oscillator disabled (oscillator and PLL

sections bias turned OFF). ATT Modulator Output Attenuation 0 Normal operation.

1 Modulator output attenuation (sound and

video modulators sections bias turned OFF). OSC SO ATT Combination of 3-bits 11 1 Modulator standby mode (sound and UHF oscillator, sound and video modulator section bias turned OFF, and I2C bus section standby mode)— BST is active. TB1 Description 0 Normal mode (fully programmable).

1 Limited programmability and compatibility with

MC44353. LOP Description 0 Pin 3 is low voltage. 1 Pin 3 is high impedance. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

8 MC44BC373/374 Technical Data MOTOROLA

WRITE MODE: Test Mode 2 READ MODE X5 X4 X3 State Description 000 2 .a Normal operation. 001 2 .b Test pattern generator DC verification (Test pattern DC test mode available). 010 2 .c Programmable divider test (UHF programmable divider on PLLFILT pin and sound programmable divider on SPLLFIL pin). 011 2 .d Reference divider test (UHF reference divider on PLLFILT pin). 100 2 .e UHF phase comparator, upper source on PLLFILT pin. Sound phase comparator 10µA upper source on SPLLFIL (only valid during Transient Output Inhibit). 101 2 .f UHF phase comparator, lower source on PLLFILT pin. Sound phase comparator 10µA lower source on SPLLFIL (only valid during Transient Output Inhibit). 110 2 .g Sound phase comparator 1µA upper source on SPLLFIL (not valid during Transient Output Inhibit). 111 2 .h Sound phase comparator 1µA lower source on SPLLFIL (not valid during Transient Output Inhibit). OOR Description 0 Normal operation, VCO in range. 1 VCO out-of-range. Y1 Description 0 VCO out-of-range, frequency too low, only valid if OOR=1. 1 VCO out-of-range, frequency too high, only valid if OOR=1. Y2 Description 0 High VCO is active. 1 Low VCO is active. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

8 Modulator High Frequency Characteristics

Unless otherwise stated: V cc=5.0V, Ambient Temperature=25 o C, Video Input 1Vp-p, 10-step grayscale. Figure 3. Typical Performance—Modulator High Frequency TVOUT output level Output signal from modulator section. Other channels: See Figure 3. NOTE 1: Picture carrier harmonics are highly dependant on printed circuit board layout and decoupling capacitors. Freescale Semiconductor, Inc.

10 MC44BC373/374 Technical Data MOTOROLA

9 Video Characteristics

Figure 4. Typical Performance—Video Freescale Semiconductor, Inc.

10 Audio Characteristics

Figure 5. Typical performance—Audio Picture-to-Sound ratio PS bit set to 0. Audio Distortion FM (THD only) At 1kHz, 100% modulation ( ±50kHz). Audio Distortion AM (THD only) At 1kHz, 100% modulation. Audio S/N with Sync Buzz FM Video input EBU color bar 75%. Reference 1kHz, 85% modulation. Video input EBU color bar 75%. Audio BW from 40Hz to 15kHz. Weighting filter CCIR 468-2. Freescale Semiconductor, Inc.

12 MC44BC373/374 Technical Data MOTOROLA

11 Antenna Booster/Splitter Characteristics

Unless otherwise stated: V cc =5.0V, Ambient Temperature=25 oC, RF inputs/outputs into 75Ohm load.

11.1 Typical Performance—Gain and Isolation

Figure 6. Typical Performance—Gain and Isolation Noise figure ANT1, 2 to VCRTU and TVOUT. Noise figure ANT1, 2 to VCRTU and TVOUT. Input level=90dBuV. See IMD measurement section. Freescale Semiconductor, Inc.

11.2 Typical Performance—Noise Figure

Figure 7. Typical Performance—Noise Figure

11.3 Intermodulation (IMD) Measurement

Figure 8. Intermodulation (IMD) Measurement and F2: F2–F1, 2 ∗F1–F2, 2 ∗F2–F1 and F1 +F2, fall in the 40MHz–900MHz range. coupler and the 50 to 75Ohm transformer. Intermodulation specification is the IMD measurement’s worst case. Freescale Semiconductor, Inc.

14 MC44BC373/374 Technical Data MOTOROLA

12 Modulator Operation

12.1 Power-ON Settings

At power-ON, the MC44BC373 and MC44BC374 configuration is as follows: The settings indicated can be customized in the special masked version.

12.2 Power Supply

The five device Vcc pins (13, 15, 16, 21, 23) must be applied at the same time to ensure all internal blocks are correctly biased. All other pins must not be biased before Vcc is applied to the device. The printed circuit board layout of the Vcc supplies must be designed to ensure maximum isolation of the I/P to O/P and also between the two O/Ps.

12.3 Standby Mode

During standby mode, the modulator is switched to low power consumption; the sound oscillator, UHF oscillator, video and sound modulator sections bias are internally turned OFF. The I2C bus and booster sections remain active. The modulator can be programmed in standby mode using a combination of three bits: 1. OSC=1 2. SO=1 3. ATT=1 WRITE MODE Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK C1— H i g h O r d e r B i t s 10000000 A C K C0— L o w O r d e r B i t s 00001000 A C K FM— High Order Bits 0 0 N11 N10 N9 N8 N7 N6 ACK FL— Low Order Bits N5 N4 N3 N2 N1 N0 0 0 ACK Note: 1. N0 to N11 are set to have the UHF oscillator on channel 36 (591.25MHz). Note: 2. Peak White Clip is ON. Note: 3. Sound frequency is 5.5MHz. Note: 4. Sound auxiliary input is disabled. Note: 5. Logic Output Port is low voltage. Note: 6. Picture-to-sound ratio is 12dB. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

MOTOROLA MC44BC373/374 Technical Data 15

12.4 Test Bit TB1

This test bit allows an initial evaluation of MC44BC373 and MC44BC374 using software developed for MC443535:  TB1= 0 — All MC44BC373/374 functions available—normal mode.  TB1= 1 — Limited software compatibility with MC44353; MC44BC373/374 functions not available.

12.5 System L or B/G Selection

SYSL bit internally switches the following functions:  SYSL = 0; enables B/G system — Video modulation polarity—Negative — Video modulation depth—80% Typical (See Video Characteristics on page 10.) — Sound modulation type—FM  SYSL = 1; enables L system — Video modulation polarity—Positive — Video modulation depth—90% Typical (See Video Characteristics on page 10.) — Sound modulation type—AM

12.6 Transient Output Inhibit

To minimize the risk of interference to other channels while the UHF PLL is acquiring a lock on the desired frequency, the Sound and Video modulators are turned OFF for each of the following two cases: 1. Power-ON from zero (i.e., all Vcc is switched from 0V to 5V). 2. UHF oscillator power-ON from OFF state (i.e., OSC bit is switched from 1 to 0) WRITE MODE1 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 ACK C A - C H I P A D D R E S S 11001010 A C K C1-High Order Bits 1 —— PS —— SYSL ACK C0-Low Order Bits ——— SFD1 SFD0 1 0 0 ACK FM-High Order Bits 0 TPEN N11 N10 N9 N8 N7 N6 ACK FL-Low Order Bits N5 N4 N3 N2 N1 N0 —— ACK Note: 1. Case TB1=1, compatible with MC44353 Note: 2. All “—” are don’t care bits. Note: 3. PS bit replaces PSD2 bit in MC44353 bus format: PS = 0 is for picture-to-sound ratio = 12dB, PS = 1 is for picture-to-sound ratio = 16dB Note: 4. SFD1 and SFD0 bits have the same definition for both bus formats (MC44353 and MC44BC373/374) and lets a sound frequency between 4.5MHz, 5MHz, 5 .5MHz, and 6.5MHz be selected. Note: 5. SYSL bit has same definition for bus formats MC44353 and MC44BC373/374; either system L or B/G is selectable. Note: 6. All MC44BC373/374 functions are set to their default values. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

16 MC44BC373/374 Technical Data MOTOROLA

to speed up the locking time. After the 263ms time-out, the current source is switched to 1 µA. transient does not exceed the specified delay. For test purposes, it is possible to disable the 263ms delay using Test Mode1–State1 .h.

12.7 Logic Output Port (LOP)

Booster function is not used. logic functions in the application. Figure 9. Attenuator Application with PIN Diode

12.8 Video Section—Peak White Clip

modulation by the video. Clipping can be disabled by software.

12.9 Sound Section

pass filter and matched structure provide a very low harmonics level. Freescale Semiconductor, Inc.

12.10 Test Pattern Generator

background and a 976Hz audio test signal. Figure 10. Test Pattern Generator—(Time in Seconds)

12.11 PLL Section

4.0MHz crystal. The 31.25KHz reference frequency is used for both UHF and Sound PLLs. The prescaler is a fixed divide by 8 and is permanently engaged.

12.12 UHF Oscillator—VHF Range

Freescale Semiconductor, Inc.

18 MC44BC373/374 Technical Data MOTOROLA

13 High-Speed I 2C Compatible Bus

13.1 Specification Conditions

Unless otherwise specified, the Vcc1=5.0V and the ambient temperature (TA) =25 oC.

13.2 Timing Definitions

Figure 11. SSDA/SSCL Timing Freescale Semiconductor, Inc.

13.3 Levels Definition

Figure 12. SDA Levels

13.4 High-Speed I 2C Compatible Bus Format

Figure 13. SCL and SDA Bus Timing

13.5 I 2C Write Mode Format and Bus Receiver

After the chip address, two or four data bytes may be received.  If three (3) data bytes are received, the third one is ignored. pulse is sent at the end of the fourth data byte. Freescale Semiconductor, Inc.

20 MC44BC373/374 Technical Data MOTOROLA

High-Speed I2C Compatible Bus The first and third data bytes contain a function bit which lets the IC distinguish between frequency information and control information. If the function bit is a logic 1, the two following bytes contain control information. The first data byte after the chip address may be byte CO or byte FM. The two bytes of frequency information are preceded by a logic 0.

13.6 I 2C Read Mode Format

The chip address (I 2C) is: The incoming information consists of the read mode chip address byte. The device then answers with an ACK followed by one byte containing three bits of status information. No acknowledge is answered by the modulator after this byte. 11001011 ( A C K )=$ C B( h e x ) i n r e a d m o d e Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

Figure 14. Proposed BiCMOS Modulator and Booster/Splitter Application right to change or discontinue this product without notice. Note 1: Cx value depends on crystal characteristics; Cx = 27pF on Motorola application board. Note 2: Loop filter components must be as close as possible to pins 22 and 23. Freescale Semiconductor, Inc.

22 MC44BC373/374 Technical Data MOTOROLA

Figure 15. TSSOP24 Package Note: 2. Controlling dimension: Millimeters. protrusions and adjacent lead to be 0.14 (0.006). Freescale Semiconductor, Inc.

MOTOROLA MC44BC373/374 Technical Data 23 NOTES Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

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