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USB 3.0 switch (multiplexer / demultiplexer) similar to USB 2.0 TS3USBxx

Other Parts Discussed in Thread: TS3USB30, TS3USB221, TS3USB31, TS5N412, HD3SS3412

Hello,

I'm looking for a USB3.0 switch 1:1 or 1:2 (multiplexer / demultiplexer). In other words, I'm looking for a USB3.0 compliant chip that is equivalent to the TS3USB221 TS3USB30 or TS3USB31?  I was not able to find any on the TI website.

I'm wondering if TS5N412 can do the trick? It's multiplexer and it's marked as "high bandwidth", compatible with PCI. PCI is Gb/s so in the same range as USB3.0...

Also, we are looking at the smallest package possible (BGA). Any recommendation?

Thanks in advance,

Grégoire Gentil

  • Hi Gregoire, have you considered using a USB 3.0 Superspeed hub rather than a switch? Although a simple electronic multiplexer switch is simpler, from a practical point of view a hub may provide you with similar functionality: the ability to concentrate several ports into one.

    e.g.

    http://www.ti.com/product/tusb8040

    Note that the AM335x does not offer USB3.0 functionality

    Regards Roger.

  • Gregoire - Yes, we do have a new device that is capable of switching higher speed signals like USB 3.0 SuperSpeed, PCI Express Gen III and SATA III.
    The device name is HD3SS3412RUA. We are sampling today and will release to production this month. You can find the datasheet for this device
    at www.ti.com, just do a part number search on HD3SS3412.

    This device is a 4 channel switch that can handle the switching of one pair of Tx+/- and one pair of Rx+/- for the SuperSpeed signals configured in a 2:1 mux
    configuration. The HD3SS3412 will not handle the USB High Speed (D+/D-) signal pair, so a separate device would be needed for that. Look at the TS3USB221
    or the TS3USB30 to handle these signals.

    We are considering a single integrated device on the roadmap that would handle both the SuperSpeed (Tx/Rx pair) and High Speed (D+/D- pair) in one package,
    but that would be further out in time. We are working on a roadmap of Differential Switches that are designed to handle applications in the 4-12Gbps type data range,
    so please check back with us for future requirements as well.

    Please let me know if this answers your question, or feel free to contact me at djensen@ti.com if you have a follow up.

    Thanks,
    Dan Jensen