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TS3USB221E: improvement for eye diagram

Ann_Lien
Genius 14430 points
Part Number: TS3USB221E
Other Parts Discussed in Thread: TUSB217, TS3USB221, TUSB212

Hello expert,

My customer would like to know if we have a chance to improve the eye diagram after signal pass TS3USB221E. Eye diagram is shown below. Thanks a lot!

BEFORE IC

AFTER IC

Best regards,

Ann Lien

  • 0
    TI__Guru 64326 points

    Hi Ann,

    In this case a USB 2 redriver may need to be used, devices like TUSB212 and TUSB217 should work your this. TS3USB221 is only a passive mux and only has ability to improve signal quality. There may be settings on your USB Host that could increase swing and help open the eye diagram.