SN65DPHY440SS: Support Display SerDes Clock Retiming

Jacob Wyrick

Part Number: SN65DPHY440SS

Hi team,

Would the SN65DPHY440SS - or similar device - be able to support clock retiming for a system using multiple TI Display SerDes like the DS90UB947/948?

Thanks,

Jacob

over 4 years ago

0 David (ASIC) Liu over 4 years ago

TI__Guru**** 177301 points

Jacob

The DPHY440 is a MIPI retimer so I am not sure how it will work with the DS90UB947/948. Are you looking for a clock cleaning solution, https://www.ti.com/clocks-timing/jitter-cleaners-synchronizers/overview.html?

Thanks

David

0 Jacob Wyrick over 4 years ago in reply to David (ASIC) Liu

TI__Expert 8365 points

Hi David,

I'm looking for a solution that could clean/synchronize results from 2x 948's into the input of a signal 947. The idea would be along the lines of fixing the skew of the 2x 948's clk outputs so that they're within the jitter requirements of the 947.

Thanks,

Jacob

0 David (ASIC) Liu over 4 years ago in reply to Jacob Wyrick

TI__Guru**** 177301 points

Jacob

I posted your thread to our FPD_Link team and asked someone to comment on your question.

Thanks

David

+1 Casey McCrea over 4 years ago in reply to David (ASIC) Liu

TI__Guru** 103215 points

Hello Jacob,

This device would not work for OLDI and from the FPD team side we are not aware of any robust solution to retime OLDI that doesn't also affect the clock to data relationship[

Best Regards,

Casey

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SN65DPHY440SS: Support Display SerDes Clock Retiming