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44BC374 Dataheets PDF



Part Number 44BC374
Manufacturers Motorola
Logo Motorola
Description MC44BC374
Datasheet 44BC374 Datasheet44BC374 Datasheet (PDF)

Freescale Semiconductor, Inc. Technical Data www.DataSheet4U.com MC44BC373/374 Rev. 3.5, 7/2003 MC44BC373/374 Multi-Standard or PAL/ NTSC Modulator with integrated antenna booster/splitter ICs MC44BC373/374 TSSOP 24 Package Freescale Semiconductor, Inc... Ordering Information Device MC44BC373DTB,R2 MC44BC374DTB,R2 Temp Range –10oC to +80oC Package TSSOP24 NOTE: For tape and reel, add R2 suffix. Contents Features . . . . . . . . . . . . . 2 Device Overview . . . . . . 3 Maximum Ratings . . .

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Freescale Semiconductor, Inc. Technical Data www.DataSheet4U.com MC44BC373/374 Rev. 3.5, 7/2003 MC44BC373/374 Multi-Standard or PAL/ NTSC Modulator with integrated antenna booster/splitter ICs MC44BC373/374 TSSOP 24 Package Freescale Semiconductor, Inc... Ordering Information Device MC44BC373DTB,R2 MC44BC374DTB,R2 Temp Range –10oC to +80oC Package TSSOP24 NOTE: For tape and reel, add R2 suffix. Contents 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 Compatible 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: www.freescale.com Features www.DataSheet4U.com 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 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 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 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 I2C-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 Semiconductor, Inc... 2 MC44BC373/374 Technical Data For More Information On This Product, Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. www.DataSheet4U.com Device Overview 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 I2C-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. a) Freescale Semiconductor, Inc... The following items are programmable using the high-speed I2C 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 I D/K H L M/N Antenna Booster/Splitter UHF tank circuit and certain filtering The high frequency BiCMOS technology permits integration of the following functions: MOTOROLA MC44BC373/374 Technical Data For More Information On This Product, Go to: www.freescale.com 3 Freescale Semiconductor, Inc... www.DataSheet4U.com 4 LOP 3 BST SECTION I C BUS L/BG 75Ω L/BG LPF.


C3835 44BC374 LT4356-1


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