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ADV7619 Equalizer Settings

Question asked by Kevin1102 on Dec 25, 2012
Latest reply on Jan 7, 2013 by raymondcarter

Dears,

 

We have a display unstable problem while input end customer source.

Input source:DVI

Input resolution:1400x1050@60Hz

Read back registers.

TMDSFREQ[8:0]=001111001b

TMDSFREQ_FRAC[6:0]=0111111

 

1.We had tried Equalizer Settings as below refer to "ADV7619_RecSettings"

 

 68 85 11 ; ADI recommended writes (27MHz and below)

 68 86 9B ; ADI recommended writes

 68 9B 03 ; ADI recommended writes

It was more stable, but it's for TMDS frequencies 27MHz and below.

We can not find the detail on user manual, could you explain it? 

 

2.Have other more Equalizer Settings registers to try?

Thanks,

 

Kevin

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