MOTOROLA MC44BC375 User J T Data Sheet
Summary
This technical guide details the high-integration MC44BC375 Modulator IC, an essential component designed for VCRs, set-top boxes, and similar video/audio receiver equipment. The chip features multiple selectable channels (U, J, T variants) with integrated on-chip oscillators, eliminating the need for external tank circuits and simplifying PCB design. This manual provides comprehensive technical specifications, functional details, block diagrams, and robust characterization data for engineers developing advanced modulation systems.
Page 1 Text Content
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查询MC44BC375供应商 Freescale Semiconductor, Inc.
Technical Data
MC44BC375/D Rev. 2.6 01/2003
MC44BC375/U/J/T MC44BC375/U/J/T PLL Tuned VHF Audio/ Video High Integration Modulator ICs
SO16 Package
Ordering Information
Device Temp. Range Package
MC44BC375UD, R2 MC44BC375JD, R2 -20°C to +85°C SO16NB MC44BC375TD, R2
NOTE: For tape and reel, add R2 suffix.
Contents List This modulator circuit is for use in VCRs, set boxes and similar devices. The device
Features differences are as follows:
Device Overview
MC44BC375U VHF [CH3 CH4] (Americas)
Maximum Ratings Thermal Rating
MC44BC375J VHF [CH1 CH2] (Japan)
Electrostatic Discharge Electrical
MC44BC375T VHF [CH13] (Taiwan)
Characteristics Pin Selection High Frequency Characteristics (U Version) Video Characteristics Audio Characteristics Characterization Measurement
CHS SFS
Conditions Modulator PSS PLLFLT Functionality
LOP TVOVCC
Pin Circuit Schematics MC44BC375U Application XTAL TVOUT Schematic
GND GND
Markings and Case Diagrams
PREEM
AUDIO VIDEO 9SPLFLT PSave/LO
Figure 1. MC44BC375U/J/T Pin Connection Diagram
This document contains information on product under development. Motorola reserves the to change or discontinue this product without notice. Motorola, Inc., 2002. All rights reserved.
For More Information On This Product, Go to: www.freescale.com
Page Summary Contents For MOTOROLA MC44BC375 User J T Data Sheet
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 20 |
| File Size | 447.21 KB |
| Published | May 31, 2026 |
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Frequently Asked Questions
What are the operating temperature specifications?
The device has an operating temperature range of from -20°C to +85°C.
Does the module require external tuning components?
No, it features integrated components like the PLL eliminating the need for external Varicap Diodes or inductors.
How is the programmable sound frequency set?
The Sound Frequency Selection (SFS) pin can select a sound frequency of 4.5MHz or 5.5MHz.