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Article #15466

Clocks

#15466
From: John Kamchen
Date: Mon, 28 Dec 1992 04:23
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I'm having a problem with a circuit I'm trying to build.
What I need is a 14Mhz clock that doesn't jitter the length of a video 
line.  
An LM1881 provides the syncs, and the clock should be stable as possible.
Looks like this
--____----------------------------------------------
_-____-_-_-_-_-_-_-_-_-_-_-_-  and so on  this is the 14Mhz clock
 
I suppose what I'm trying to do is simulate a color-burst sync circuit
(but using a 14Mhz clock).  The goal is to enable me to address
a pixel every 70ns (for video sampling, image manipulation & such).
 
Anyone know what I can do ?  I've tried Xtals & inverters, all I could 
think of.  I did get this working using a 74HC4046 PLL chip, but
the cost was high ($2.50 for the chip), and at the end of the video line, 
the clock wasn't too stable.

So, that's what I need.  Need help!
-John
SSE BBS (204)589-1078 v32bis AmiTronics- MEGS of 'em
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From: flux@sys6626.bison.mb.ca (John Kamchen)
Newsgroups: sci.electronics
Subject: Clocks
Message-ID: <e26gwB4w165w@sys6626.bison.mb.ca>
Date: Sun, 27 Dec 92 22:23:13 CST
Organization: System 6626 BBS, Winnipeg Manitoba Canada
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