INTERLACED_SYNC

Published:2009/7/15 22:14:00 Author:Jessie | From:SeekIC

Uses Sylvania 15-37701-1 IC made by Texas Instruments for 1974 Sylvania color TVs, where it serves to generate sync signals whenever off-the-air sync is temporarily Lost. IC has divide-by-2, divide-by-25, and mono MVBR stages. Used in circuit shown to provide interlaced sync for black and white amateur TV camera, Required 31.5-kHz input is obtained from 6300-kHz crystal oscillator and three flip-flops that divide by 200 With 74121 mono and 7400 gate connected as shown, interlaced sync outputs are obtained.-R. Suding, Master Sync Generator, 73 Magazine, July 1975, p 96.



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