First of all ADV212 is not recommended for new designs as per product page http://www.analog.com/en/products/audio-video/video-compression/adv212.html#product-overview
So support on this part is very limited.
Please refer the technical documentation for this part at http://www.analog.com/en/products/landing-pages/001/adv212-technical-documentation.html
I believe that this thread ADV212 evaluation kit schematics? also would help you better.
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