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[ADV7619] OP_656_RANGE/ALT_DATA_SAT affecting PAL and NTSC output

Question asked by iverguin on Feb 26, 2013
Latest reply on Mar 15, 2013 by iverguin

Hi,

 

We are using the ADV7619 and have found that setting IO (0x98) register 0x02 to value 0xf2 gives an unstable video output, only for 720x480p and 720x576p formats.

Writing this register to either 0xf7, 0xf6 or 0xf3 works fine.

 

Any idea why we have this bad behavior when clearing both OP_656_RANGE and ALT_DATA_SAT bits?

 

Thank you.

 

Isabelle

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