piclist 2001\01\27\050027a >
Thread: Having trouble with LM1881 / NTSC sync separator
face picon face BY : Sean H. Breheny email (remove spam text)

If you do terminate it with a 75 ohm resistor, be sure to put it BEFORE the
DC block capacitor (that is, on the camera side of the cap). The LM1881
performs DC restoration as a part of its processing, and if you try to tie
its input to ground through a low impedance, I don't think it will be able
to restore properly.


At 10:53 AM 1/27/01 +0200, you wrote:
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In reply to: <Pine.LNX.4.10.10101271046010.11366-100000@plp.plp.home.org >
See also: www.piclist.com/techref/displays.htm?key=ntsc
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Subject (change) Having trouble with LM1881 / NTSC sync separator

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