Xref: utzoo sci.electronics:7380 rec.video:7483
Path: utzoo!dciem!king
From: king@dciem.dciem.dnd.ca (Stephen King)
Newsgroups: sci.electronics,rec.video
Subject: Re: sync signal generator
Message-ID: <2386@dciem.dciem.dnd.ca>
Date: 11 Aug 89 19:53:00 GMT
References: <89216.120136BHB3@PSUVM> <21056@cup.portal.com> <26659@amdcad.AMD.COM> <11525@cit-vax.Caltech.Edu>
Reply-To: king@dretor.dciem.dnd.ca (Stephen King)
Followup-To: sci.electronics
Organization: D.C.I.E.M., Toronto, Canada
Lines: 18

In article <11525@cit-vax.Caltech.Edu> stevel@tybalt.caltech.edu.UUCP (Steve Ludtke) writes:
>If you just need a simple sync signal, and you have some sort of video source,
>the LM1881 is an excellent choice. [...]
>I've tried it with a number of video sources for genlocks,
>video decipering, etc ... and it's worked quite well. Even better, they
>only cost $4-6 each.  [...]

Another interesting component is (was) the Motorola MC1378 video overlay
synchronizer. Put NTSC in and get everything out, including phase locked
10xSc clock (35.8 Mhz). External circuitry has to feed H sync back to the
chip - we accomplished that with one PAL. The thing also had RGB and
overlay enable inputs. Anyway, what we worked with was a pre-production
sample (labelled XC1378), and I haven't heard whether or not these things
ever made it to full production. Anyone got more info?

-- 
                       Se non e` vero, e` ben trovato 
     ...{utzoo|mnetor}!dciem!dretor!king        king@dretor.dciem.dnd.ca