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ADV7343

Dear  Sir/Madam,

Problem with ADV7343 for the CGA interface,

        In my design, I used the ADV7280 + DM648 + ADV7343 , intending to be generat 1 channel CVBS and 1 channel  VGA by ADV7343. But I can not generate VGA during debugging. I would like to ask if  according to VESA standard, whether the ADV7343 can output analog VGA video signal? (whether the 7343 can support VESA standard?)
        Further more, is it possible to use ADV7343's SD channel to generate CVBS, and the HD channel to generate VGA video ?

Thanks.   

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