44BC374 Datasheet | Motorola Semiconductor

Features - - . . . 2 Device Overview - . 3 Maximum Ratings - 5 Electrostatic Discharge 5 Electrical Characteristics 5 6 I2C Bit Mapping - . . 6 7 I2C Programming - 7 8 Modulator High Frequency Characteristics 9 9 Video Characteristics . 10 10 Audio Characteristics . 11 11 Antenna Booster/Splitter Characteristics 12 12 Modulator Operation . 14 13 High-Speed I2C patible Bus 18 14 Application and Case Diagrams 21 1 2 3 4 5 These modulator ICs are for use in VCRs, games, set-top boxes, and similar devices. Figure 1 shows the pin connections. SCL SDA 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 GNDD VCCD PLLFLT TVOVCC TVOUT GND GND VCRTU VCRVCC VCCA VIDEO VCCI LOP XTAL GND ANT1 ANT2 GND PREEM AUDIO SPLFLT AUXIN Figure 1. MC44BC373/374 Pin Connections 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. For More Information On This Product, Go to: .freescale. Features .. Freescale Semiconductor, Inc. 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 patible bus receiver. A Phase-Locked Loop (PLL) tunes the modulator over the full UHF range. The modulator incorporates a sound subcarrier oscillator and uses a second PLL to derive 4.5, 5.5, 6.0, and 6.5MHz subcarrier frequencies. These frequencies are selected 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 1k Hz audio test signal. Along with the modulator functions, an Antenna Booster/Splitter function is included. These modulator versions are pletely pin-to-pin and software patible and all versions have the following features . - - - - - - - - - - - - - - - - - No external...