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
| 0x00 | 0x1C |
| 0x01 | 0x70 |
| 0x0B | 0x00 |
| 0x30 | 0x04 |
| 0x31 | 0x01 |
| 0x33 | 0x40 |
| 0x35 | 0x00 |
| 0x40 | 0x00 |
| 0x58 | 0x00 |
| 0x59 | 0x00 |
| 0x5A | 0x00 |
| 0x5B | 0x00 |
| 0x5C | 0x00 |
| 0x5D | 0x00 |
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.
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
