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ADV7842, CVBS input detection

Question asked by usaghi on Mar 19, 2013
Latest reply on Mar 21, 2013 by GuenterL

Hi,

 

We are using CVBS input of ADV7842 from RCA connection, and we would like to detect and identify whether signal is invalid or there is no input.

We can see register SDP_VIDEO_DETECTED, at Addr 90 (SDP), but this status seems does not distinct invalid and no signal.

Please could you suggest any way to identify invalid signal and no signal, even if it is external way from ADV7842.

 

Best Regards,

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