Datasheet4U Logo Datasheet4U.com

MC44140 Datasheet Chroma Delay Line

Manufacturer: Motorola Semiconductor (now NXP Semiconductors)

Overview: .. MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC44140/D Chroma Delay Line HCMOS 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 ponents 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.

General Description

S Pin 2 3 1 5 4 Symbol VDD VSS CK SS SC Positive supply voltage.

Supply ground.

System clock.

Key Features

  • by CL1 at pin 15. The direct path signal is clamped by the other CL1 switch to the dc level of the delayed path (including any offsets) to ensure there is no difference in clamping level between the two paths. During the period “SECAM 1”, the B.
  • Y signal is present and this is clamped to the delayed path dc level. Switch SECAM 1 is closed during this time and so the direct signal passes straight to the output. During the next line period (SECAM 2) there is no direct path signal; now switc.

More Datasheets from Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MC44144 SUBCARRIER PHASE-LOCKED LOOP
MC44145 PIXEL CLOCK GENERATOR / SYNC SEPARATOR
MC44130P System 4 Stereotone Single Chip TV Sound Control
MC44001 Chroma 4 Video Processor
MC44002 (MC44007 / MC44002) CHROMA 4 VIDEO PROCESSOR
MC44007 (MC44007 / MC44002) CHROMA 4 VIDEO PROCESSOR
MC44011 BUS CONTROLLED MULTISTANDARD VIDEO PROCESSOR
MC44030 MULTISTANDARD VIDEO SIGNAL PROCESSOR
MC44035 MULTISTANDARD VIDEO SIGNAL PROCESSOR
MC44250 Triple 8-Bit Video ADC CMOS

MC44140 Distributor