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HD3SS6126:Switch Combination

Kiyoshi Yamada
Prodigy 20 points
Part Number: HD3SS6126
Other Parts Discussed in Thread: TMUXHS4446

Tool/software:

HD3SS6126_comb.pdf

If I use the combination shown in the document I sent, will the USB 3.0 signal quality be maintained?

Could you please let me know if there are any parts with a similar circuit configuration that will maintain the USB 3.0 signal quality?

  • 0
    TI__Expert 3275 points

    Hi Kiyoshi,

    Your signal will degrade using this setup. We suggest removing one of the switches in the middle and testing to see how your system performs with this cascaded setup. What is your frequency - if it is low enough, it might be ok. Please see this app note for further information on cascading multiplexers and the effects on signal integrity.

    Additionally, you may be interested in replacing this setup with TMUXHS4446, a 4:6 cross bar mux. You could leave two channels floating and use it as a 4:4 crosspoint switch, eliminating the need for multiple muxes.

    Best,

    Katy