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Original question:

TS3DV20812: 10GBASE-T Muxing

TS3DV20812: Product Selection

Ray Vincent Aranzaso
Mastermind 18180 points
Part Number: TS3DV20812
Other Parts Discussed in Thread: TMUXHS4412

Hi,

Good Day.

https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/586366/ts3dv20812-10gbase-t-muxing

I went through the datasheet(TS3DV20812), and it doesn’t support 10G. Can you please clarify this?

Also, if you could share any application notes/hardware references regarding this?

Thank you very much.

Best Regards,

Ray Vincent

  • 0
    TI__Guru**** 176581 points

    Ray Vincent

    Are you looking for a 10G BASE-T MUX solution? The TS3DV20812 will not work since its BW is 1.1GHz. 

    Thanks

    David

  • 0 in reply to David (ASIC) Liu
    TI__Mastermind 18180 points

    Hi David,

    Good Day. I would like to MUX 10GBase-T and a 1GBase-T channel to a single connector.

    Can you please provide a part that can support this? Please advise. Thank you very much.

    Best Regards,

    Ray Vincent

  • 0 in reply to Ray Vincent Aranzaso
    TI__Mastermind 36063 points

    Hi Ray,

    My recommendation would be to consider using a passive mux for this application.  10GBase-T and 1GBase-T both use non-NRZ signaling.  The majority of our active ethernet devices are designed for NRZ signaling, so they would not work well for this application.

    I would recommend considering the TMUXHS4412 for your application since this has high bandwidth and has several channels.

    With that said, according to the app note below, it seems like the bandwidth requirements for 10GBase-T and 1GBase-T are very low, at ~500 Mhz and 80 Mhz respectively.  Because of this, it's possible that there may be additional MUXes that could be used in your application.

    https://download.tek.com/document/55W_23486_0_0.pdf

    Since it's not a common use case for our passive muxes to be implemented in Base-T applications, I would strongly suggest closely evaluating the electrical requirements for our muxes and ensuring that they are compatible with Base-T signaling.  I would also recommend simulating the device in order to add more confidence to your design.

    Thanks,

    Drew