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Closed captioning on the ADV7180

Question asked by HankZ on Apr 22, 2014
Latest reply on May 14, 2014 by GuenterL

we use the ADV7180BCPZ in one a few of our designs as the ADC for composite 

signals.  All is well, mostly, but with certain sources, there is a line or 

two of what appears to be closed captioning or teletext data at the top of

video  frames, which we see on our device’s output.  We would like it very much

if  we could get these lines to disappear from active video.  We have tried 

poking at just about every register in the chip, but have had no luck in 

removing the visible CC data, so I’m hoping someone on your side may be able

to  help us.  Register dumps are available if needed

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