MC44144

Subcarrier Phase-Locked Loop The MC44144 is a gated phase–locked loop intended for, but not restricted to, video applications. The integrated circuit contains a gated phase detector, voltage controlled crystal oscillator, divide–by–4 circuitry, and a video clamp. This device provides a 4X reference frequency output, and a 1X reference frequency output. The MC44144 is manufactured using Motorola’s high density, bipolar MOSAIC™ process. 8–Pin DIP or Surface Mount Package Gated–Phase Detector Single Pin Voltage Controlled Crystal Oscillator 1X and 4X Subcarrier Output Operates Off of a Standard 5.0 V Supply Order this document by MC44144/D MC44144 SUBCARRIER PHASE–LOCKED LOOP SEMICONDUCTOR TECHNICAL DATA 8 1 P SUFFIX PLASTIC PACKAGE CASE 626 + 5.0 8 Voltage Reference 2.6V Representative Block Diagram Composite Video Burst Gate 75 0.1µ 76 4X Subcarrier Output 1.0n 5 Clamp Out Gate Pulse Video Clamp Video In Clamp In Reference Subcarrier Phase Det...