ADV7611 with ADV7343 Eval Kit specification

Yes, the ADV7611 will support 1080p60.  For a reference kit and designs I'd suggest working with EVAL-ADV7612-7511P found here

https://ez.analog.com/video/w/documents/792/adv7612-design-support-files

ADV7611 support pagehttps://ez.analog.com/video/w/documents/789/adv7611-design-support-files

Thanks, Guenter

when ADV7611 supports 1080p60. But ADV7341 Supports only 525I or 652i 30fps for S-Video and CVBS.

Here, where the Scaling and Frame rate conversion is taking place. 

I need an analog output CVBS and S-video form HDMI input of 1080p. 

Thanks

Hi,

Its not possible for 1080p60 out in ADV7343,Its maximum supported clock as 74.25Mhz,So it can support only upto 1080p30.

Note : And also scaling would not be possible in ADV7343, because the part ADV7343 is video encoder and it will just takes digital as input and makes it analog. It will not scale or re-time anything. What comes in just goes out.

Thanks,

Poornima

Hi 

But how the evaluation kit works?

Will you pls say the flow of this eval kit.

ADV7611 ---> ADV7341

How the interface is done in both things.  ADV7611 output resolution will support the input resolution to ADV7341 for (CVBS and Y/C output)?

Hi,

ADV7611 output resolution will support the input resolution to ADV7341 for (CVBS and Y/C output)?

  No,resolution support depend only on the maximum TMDS clock frequency of the particular chip. If clock exceed as per specification, then it will not sample the correct pixels.

Note: ADV7611 has HDMI input to Pixel bus output.
           ADV7343 has Pixel bus input to analog output.

Thanks,

Poornima 

Thanks, Poornima

But how they do in the ADV7611 Evaluation kit.

In the Evaluation kit, when ADV7611 will support 1080p60. The output of the ADV7611 is parallel data of 1080p60, 

This output parallel data will not support the input to ADV7341 (CVBS and Y/C Conversion 525i30).

But, Still how they use in evaluation kit.?

Thanks,

Praveen   

Hi,

  You can't use this format in evaluation kit, As already i stated "If clock exceed as per specification, then it will not sample the correct pixels."

Thanks,

Poornima

Thanks, Poornima for a quick reply.

Hi 

For getting CVBS and Y/C format. How did they use in evaluation kit?

https://ez.analog.com/video/w/documents/792/adv7612-design-support-files

Thanks

Praveen

Hi,

 From 7612 reference script, Instead of 0x72(ADV7511) Tx writes, Use ADV7343(DAC) configuration which corresponds to CVBS and Y/C out. Please refer table 64 in ADV7343 datasheet.

Thanks,

Poornima