Motorola MC44302A Advanced Information

Advanced Information
Advanced Multi-Standard TV
Video/Sound IF
The MC44302A is a multi–standard single channel TV Video/Sound IF
and PLL detector system specifically designed for use with all standard
modulation techniques including NTSC, PAL, and SECAM. This device
enables the designer to produce a high quality IF system with a minimum
number of external components.
The MC44302A contains a high gain video IF with an AGC range of 80 dB,
enhanced phase–locked loop carrier regenerator for low static phase error,
doubly balanced full wave synchronous video demodulator featuring wide
bandwidth positive and negative video outputs with extremely low differential
gain and phase distortion, video AFT amplifier, multistage sound IF limiter
with FM quadrature detector and AFT for self tuning, AM sound detector,
constant and variable audio outputs, dc volume control for reduced hum and
noise pickup, unique signal acquisition circuit that prevents false PLL lockup
and AFT push out, horizontal gating system with sync separator and
phase–locked loop circuitry for self–contained RF/IF AGC operation, RF
AGC delay circuitry, and programmable control logic that allows operation in
NTSC, and PAL SECAM systems. This device is available in wide body 28 pin
dual–in–line and surface mount plastic packages.
Multi–Standard Detector System for NTSC, PAL, and SECAM
High Gain Video IF Amplifier with 80 dB AGC Range
Enhanced PLL Carrier Regenerator for Low Static Phase Error
Synchronous Video Demodulator with Positive and Negative Video
Outputs
Sound IF with Self Tuning FM Quadrature Detector
AM Sound Detector
DC Volume Control
Unique Signal Acquisition Circuit Prevents False PLL Lockup
Horizontal Gating System for Self Contained RF/IF AGC Operation
RF AGC Delay Circuitry
VHF/UHF
Tuner
SAW
Filter
Video
IF
RF/IF
AGC
MC44302A
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
MOTOROLA ANALOG IC DEVICE DATA
Downloaded from Elcodis.com electronic components distributor
Simplified Television Block Diagram
Luma & Chroma
Processor
Vertical & Horizontal
Scan Circuitry
Video Sound
Detector IF Detector
DC Volume
AFT
Control
Horizontal
Gating System
Video
Drivers
Sound
Audio
Amp
Mode Power
Switch Supply
Order this document by MC44302A/D
MC44302A
ADVANCED
MULTI–STANDARD
VIDEO/SOUND IF
SEMICONDUCTOR
TECHNICAL DATA
PLASTIC PACKAGE
28
1
DW SUFFIX
28 PLASTIC PACKAGE
CASE 751F
1
PIN CONNECTIONS
DC Volume Control 1
Sound Input (FM) 2
Audio Input/
3
Audio–Video Switch
Sound
4
De–Emphasis (FM)
Negative Video Out 5
Positive Video Out 6
Sound AFT Filter/
7
Peak White Filter
Video IF Input 8
Video IF Input 9
Video Mode Switch 10
AFT Output
11
AFT Mode Switch 12
RF AGC Output 13
Video IF AGC Filter 14
(Top View)
ORDERING INFORMATION
Tested Operating
Temperature Range
Device
MC44302ADW
T A = 0 to +70 C
MC44302AP
Motorola, Inc. 1997
P SUFFIX
CASE 710
(SO–28L)
Intercarrier
28
Sound Output
Audio Output
27
(Variable)
Sound Quadrature
26
Coil (FM)
25 V CC
Audio Output
24
(Constant)
23 Sound Input (AM)
Gnd
22
21 VCO Coil
20 VCO Coil
PLL Filter
19
(Main VCO Loop)
Lock Detector/Filter
18
(Acquisition Circuit)
17 Flyback/Video Input
16 Horizontal PLL Filter
15 RF AGC Delay
Package
SO–28L
Plastic DIP
Rev 0
1