AD725

Dear support team

From one of my customers: 

We have used the AD725 to convert PC VGA to composite analog PAL video.

This design is based on AD725 data sheet schematic (page 12).

It seems that the PC is output a VGA non-interlace data , so this device can’t output correct composite analog PAL to video monitor.

We can’t control on the graphic card on the PC.

 

Do you have any idea how to solve this issue with the AD725 ?

Do you have any other chip that can do this job with pure hardware solution ( without any software registers programming ) ?

 

Thanks

Rafi and Freddy