• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 517 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TUSB551: USB3 redriver placement

Far Hung
Expert 7550 points

Part Number: TUSB551

Hi Expert,

For the USB3 redriver, we put the redriver near the connector on TX path, do we need to place the redrvier near the SoC side for RX path? Or it's ok to put the TX and RX redriver near to connector?

Do we have pre-channel/ post channel length for customer reference?

  • 0
    TI__Mastermind 22936 points

    Hi Far,

    Please refer to the FAQ E2E thread (Link) regarding your question.

    Best,

    Josh

  • 0 in reply to Josh Baik
    TI__Expert 7550 points

    Hi Josh,

    According the layout guidelines suggest redriver should be placed close to the connector, it mean both TX and RX redriver need to close to the connector?

    My customer encounter the layout limit on connector side, they want to put the RX redriver on SoC side, is it OK to put the single channel redriver on SoC side.

  • +1 in reply to Far Hung
    TI__Mastermind 22936 points

    Hi Far,

    Yes. It would be desirable to place as close as possible to the connector.

    The placement of TUSB551 is dependent upon the insertion loss of the channel. If the customer knows the insertion loss characteristics of their PCB at 5Gbps then they can estimate where TUSB551 should be placed. In the meantime, please refer to the thread I share above.

    Best,

    Josh