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DS160PR410: DS160PR410

David Siksik
Prodigy 215 points
Part Number: DS160PR410

Hello,

We are using the ds160pr410 PCIe redriver in gen3 application.

Do we need to match the lengths between PCIe lanes in the same bus?

Thank you,

David

  • 0
    TI__Guru* 88895 points

    Hi David,

    I believe you are referring to inter-lane skew. Per PCIe standard there is no need to match these trace length. PCIe protocol takes care of this skew. Having said this, it is recommended to keep this within 3 inches.

    On the other hand, intra-pair skew - skew between P and N of a differential trace - should be kept to within 5 mils. Failure to do so, may introduce high jitter.

    Regards,,Nasser