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HD3SS3220: May I have some question regarding HD3SS3220?

TAlex Wu
Expert 1180 points
Part Number: HD3SS3220
Other Parts Discussed in Thread: TUSB322, HD3SS3212

Dear SIR:

May I have some question regarding HD3SS3220?

My question is "How to select between HD3SS3220 and TUSB546 for USB3 Type C design ?"

Change another word:What's condition(application) select HD3SS3220 for USB3 Type C design ? What's condition(application) select TUSB546 for USB3 Type C design ?

Thanks

  • 0
    TI__Genius 16150 points
    Hi TAlex,

    The HD3SS3220 is a passive 2:1 MUX with DRP controller for Type-C (Power Delivery is not supported). Basically, the applications is a HUB, USB host, tables, among others.
    On the other hand, the TUSB546 is a USB Type-C with DP ALT Mode linear redriver (no passive switch). The main applications includes docking stations, desktops, system that requires switch between USB3.x and DP signals.

    Best Regards,
    Luis Omar Moran
    High Speed Interface
    SWAT Team
  • 0 in reply to Luis Omar Moran
    Expert 1180 points

    Dear SIR:

    Thank for your reply,But may I double confirming the detail meaning regarding your reply as below:

    The HD3SS3220 is a passive 2:1 MUX with DRP controller for Type-C (Power Delivery is not supported). Basically, the applications is a HUB, USB host, tables, among others.
    On the other hand, the TUSB546 is a USB Type-C with DP ALT Mode linear redriver (no passive switch). The main applications includes docking stations, desktops, system that requires switch between USB3.x and DP signals.

    ==>(1)Is that (DRP controller) meaning "Dual Role Port"?

               (If that (DRP controller) meaning  is "Dual Role Port" ,more confirming item : TUSB546 without DRP controller ?(TUSB546 no support Dual Role Port?))

           (2)Is that (no passive switch) meaning "HD3SS3220 without re-driver (so call that "passive")

                and TUSB546 have re-driver  (so call no passive switch ,change another word "TUSB546 is active switch because it have re-driver? ")

    Thanks

  • 0 in reply to TAlex Wu
    TI__Genius 16150 points

    Hi TAlex,

    1. DRP controller refers to Dual Role Port as you mentioned.

    2. HD3SS3220 has built-in a passive MUX (HD3SS3212) + TUSB322 (USB Type-C DRP Port with VCONN). Hence this MUX does not have any re-driver functions, the input is not modified by the device to the output. Otherwise, the TUSB546 is a USB Type-C Crosspoint Switch with LINEAR RE-DRIVER with up to 14dB Equalization.

    Regards,

    Luis Omar Moran

    High Speed Interface

    SWAT Team