AnsweredAssumed Answered

(ADV7390)Does this device support 640*480p@25.175MHz DDR?

Question asked by donadona999s on Jun 2, 2016
Latest reply on Jun 8, 2016 by donadona999s


Hi !

 

I have a question about ADV7390.

(ADV7390)Noise output from the device.

As I attached there is noise output issue .

The customer resister is this

0x000x1C
0x010x70
0x0B0x00
0x300x04
0x310x01
0x330x40
0x350x00
0x400x00
0x580x00
0x590x00
0x5A0x00
0x5B0x00
0x5C0x00
0x5D0x00

The point is some thing wrong when the input 640*480p@25.175MHz DDR.

But nothing wrong when they input 720*480p@27MHz.

 

The question is

1) Does ADV7390 support 640*480p@25.175MHz DDR with embedded EAV/SAV?

2) If ADV7390 support 640*480p@25.175MHz DDR, is the resister setting correct?

3) If ADV7390 support 640*480p@25.175MHz DDR do we have to use vsync and hsync?

     Or embedded EAV/SAV(BT.656) is fine?

 

I think that the device support only this resolution .

So I think ADV7390 cannot support 640*480p.

ADV7390.JPG

Also this is very critical because they have to mass‐production next month so

if you can answer about this soon, it will help us and our customer.

 

Best regards.

Kawa

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