When I look at the outputs of the ADV7180 I am getting glitches on the data output and the occasional glitch on the clock.
The attached logic analyser shots show this:-
PIC 2 is a closeup of the glitch next to DA on the data shown in PIC1.
PIC3 shows a glitch on the clock, but this doesn't occur as often as those on the data.
PIC4 shows that the glitches can be any value including FF, which is a real problem when it is only used for EAV and SAV !
This occurs when I inject a PAL 720x576i video into the device or let the device output a default blue screen with no signal.
How is this possible ? Any ideas what is happening ?