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DS90UB940-Q1: De-skew/lane alignment

Rory Wu
Intellectual 1050 points
Part Number: DS90UB940-Q1

Hi Team,

My customer asked that there is one description on DS90UB940-Q1 Datasheet first page as below. The device should be able to de-skew/lane alignment. Could you please help explaine more about it? And is there any limitation of the mismatch that we support? Thanks.

"The device automatically senses the FPD-Link III channels and supplies a clock alignment and de-skew functionality without the need for any special training patterns. This ensures skew phase tolerance from mismatches in interconnect wires such as PCB trace routing, cable pair-to-pair length differences, and connector imbalances."

BR,

Rory

  • 0
    TI__Mastermind 30515 points

    De-skew / lane alignment is widely used for data transmission synchronization in multi-lanes system. since 940 has two input data channels, if there is skew between them, 940 internally can de-skew and make them alignment. It can correct 1 pixel clock sekw betwene the two lanes.

    generally since the two lanes share the similar cable length, the two lanes' skew is very small. what is your concern here?

    regards,

    Steven