SN75DP149: SN75DP149 4K 30Hz issue

Ray Hsu

Expert 1330 points

Part Number: SN75DP149

Hi, Sir,

Core chip is VMM3332,

1. from VM3332 signal output, HDMI 4K30Hz is OK.

2. from VM3332 signal output DP++, transfer by SN75DP149, 1080P60Hz is ok, but 4K30Hz will blinking in most PC.

Are there any suggestions to support SN75DP149 at 4K30Hz or should we pay attention to them? Thank you

over 5 years ago

0 David (ASIC) Liu over 5 years ago

TI__Guru**** 156261 points

Ray

Can I please take a look at their schematic and layout? Dose the blinking go away if they use a shorter cable?

Thanks
David

0 Nasser Mohammadi over 5 years ago in reply to David (ASIC) Liu

TI__Guru* 93670 points

Hi Ray,
It's been more than three days with no update. I am assuming this issue is now resolved and thus we are closing this case. Please re-open this case if there is an update or there is a related question.
Regards,,nasser

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SN75DP149: SN75DP149 4K 30Hz issue