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TUSB522P: Swap SS Differential Pairs

Mitchell
Expert 4915 points
Part Number: TUSB522P
Other Parts Discussed in Thread: SN65LVPE502A

Hi Team,

On the TUSB522P, is it acceptable to swap the SS differential pairs for ease of routing (i.e. TXP can be routed to TXN and RXN can be routed to RXP)?

I see mention of this in the SN65LVPE502A's datasheet layout guidelines but not in the TUSB522P.

Thanks,
Mitchell

  • 0
    TI__Genius 16150 points
    Hi Mitchell,

    In USB3 you can swap polarity and the receiver's physical layer will compensate it, regardless of the used re-driver.

    For non-USB3 re-drivers you can swap polarity at the input and have to swap polarity at output again to go back to the original state.

    Hence, for TUSB522P the SS differential pairs can be swapped.

    Best Regards,
    Luis Omar Moran
    High Speed Interface
    SWAT Team