Re: Composite sync - separate out horizontal and vertical sync?

"jamma-plusser" <jamma-plusser@xxxxxxxxxxx> wrote in message
news:46a4ea65.182860531@xxxxxxxxxxxxxxxxx
On Mon, 23 Jul 2007 11:27:28 +0100, "CWatters"
<colin.watters@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Perhaps..

http://www.national.com/mpf/LM/LM1881.html


Thanks, but doesn't the LM1881 just separate the sync signal from the
video in a composite feed? What I need to do is split off the
horizontal and vertical syncs from a signal that is composite sync
only.


The LM1881 should do the job for you. Unless I'm seriously mistaken, the chip
doesn't need video, in fact, the first thing the LM1881 does is to strip off the
video to create a composite sync signal. From there, the vertical and
horizontal syncs are generated and sent to separate outputs.
You should be OK to use this chip.

--
Dave M
MasonDG44 at comcast dot net (Just substitute the appropriate characters in the
address)

"In theory, there isn't any difference between theory and practice. In
practice, there is." - Yogi Berra


.

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