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Original question:

DS90UB941AS-Q1: propagation delay

DS90UB941AS-Q1: propagation delay - continue

Ryan Wang
Expert 7710 points

Part Number: DS90UB941AS-Q1

Dear expert,

Follow up with below thread:

https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1057159/ds90ub941as-q1-propagation-delay

UB941 propagation delay is 145 × T. T is 1/pixel clock, right?

UB948 propagation delay is 147 × T. T = 1 / OLDI Clock frequency according to datasheet. Is it not 1/pixel clock?

Thanks

  • 0
    TI__Mastermind 38870 points

    Hi Ryan,

    Are you trying to calculate the propagation delay for entire system from serializer to deserializer? If it is, you would need to calculate the tSD and tDD. tSD is PCLK FPD-Link and tDD is PCLK OLDI.

    Hope this helps. Let me know if you have further questions.

    Aaron