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TMUX136: TI High speed mux solution suggestion

Jimmy Lai
Expert 6845 points
Part Number: TMUX136

Dear team,

Do we have  1 Ch High speed mux solution as below?

Many thanks,

Jimmy

  • 0
    TI__Expert 3515 points

    Hi Jimmy,

    We do not have a single channel 2:1 mux with the same bandwidth as the TMUX136 but the TMUX136 can still be used with the second channel being tied to ground through a 50 ohm termination resistor to prevent noise. See the FAQ we have on this topic for more information: [FAQ] What to do with unused pins & thermal pads

    Thanks,
    Tyler

  • 0 in reply to Tyler McGuire
    TI__Expert 6845 points

    Hi Tyler,

    Thanks for your great support!

    We DIN the 4 TMUX136 in customer's new project!!

    Could you help to review the schematic as below?

    Many Thanks,

    Jimmy

  • 0 in reply to Jimmy Lai
    TI__Expert 3515 points

    Hi Jimmy,

    Overall the schematic is good but one change would be to ground the COM2 pins with 50 ohm resistors as well.

    A more general question is can they utilize channel 2 on each device so that they don't need 8 muxes, only 4? If this was done because each channel needs to be independently switched then the current configuration makes sense.

    Thanks,
    Tyler