www.DataSheet4U.com
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by MC44140/D
Chroma Delay Line
HCMOS T...
www.DataSheet4U.com
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by MC44140/D
Chroma Delay Line
H
CMOS Technology
The MC44140 is a monolithic 64 µ s delay line, intended for color TV applications. It may be used as a baseband chroma correction circuit (with PAL), or as a chroma delay line (with SECAM). The device has been designed for use with the MC44000 as part of CHROMA 4, or with the MC44011, but may also be used as a general purpose delay line for other applications. Part of SYSTEM 4 Concept Works with Baseband Color Difference Signals PAL (4.43 MHz)/SECAM/NTSC Capability Uses 17.734475 MHz Clock with PAL/SECAM Signals 8–Bit Sampling at 1/6 Clock Frequency External Inputs (Satellite ....) Minimum Number of External Components Low Current (35 mA), + 5 V Supply
MC44140
16 1
P SUFFIX PLASTIC PACKAGE CASE 648–08
16 1
DW SUFFIX PLASTIC PACKAGE CASE 751G–02
ORDERING INFORMATION
MC44140P MC44140DW Plastic DIP SO–L
PIN ASSIGNMENT
CK VDD VSS SC SS IN1B OUT1 EXT1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 BIAS IN1A IN2A VDD VSS IN2B OUT2 EXT2
© Motorola, Inc. 1995 MOTOROLA
REV 10 2/95
MC44140 2–1
BLOCK DIAGRAM
ANALOG VDD ANALOG VSS DIGITAL VDD DIGITAL VSS EXT R–Y EXT B–Y
BIAS
2
3
16
13
12
8
9
– CLOCK 1 +
BLACK LEVEL
VOLTAGE CL4 CL4 CLOCK GENERATOR BIAS SOURCE
SAND– 4 CASTLE SYSTEM SELECT 5
SANDCASTLE AND SYSTEM SELECTION DECODER
EXT CL1 CL3 SECAM SR A/D CL2 CL4 1 2 CLOCKS CONTROL PAL NTSC R–Y IN 6 CL1 CL3 BLACK LEVEL CURRENT CL1 ...