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

over 2 years ago

0 Tyler McGuire over 2 years ago

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 Jimmy Lai over 2 years ago 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 Tyler McGuire over 2 years ago 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

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TMUX136: TI High speed mux solution suggestion