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TUSB8040: Type-C hub with display port support

Peter Wei
Expert 3100 points
Part Number: TUSB8040

Team,

One customer, they are going to make the notebook, and it will have two type-c port. They want both of them are full function, could support USB devices and also display port. So they are looking for full function type C hub.

They said, ideally, if two monitor connected to the type c ports, if they can be identified as monitor 2 and monitor 3, display diff information, it will be best they want; but if it does not work, they can accept two monitors display the same thing.

What is our suggestion on this kind of function? And experience? Could Win 10 display driver support this?

Best REgards,

Peter Wei

  • 0
    TI__Guru**** 150555 points

    Peter

    Whose PCH do they plan to use in their notebook design? Would you please provide a block diagram so we can make the best recommendation?

    Thanks

    David

  • 0 in reply to David (ASIC) Liu
    TI__Expert 3100 points

    David,

    It is Qualcomm PC, like the windows surface with the Qualcomm MicrosoftSQ1 CPU, it does not have PCH. The display port and USB3.0 directly from the CPU. Like Surface, it connected to a type c socket, but surface only have one type-c. My customer want to put two. 

    Best Regards,

    Peter Wei

  • 0 in reply to Peter Wei
    TI__Guru**** 150555 points

    Peter

    Please share a block diagram if you have one, it would make sure we are on the same level of understanding. 

    My understanding is that the USB and DP are already muxed, and they are looking for a solution that can go from one Type-C port to two Type-C ports. 

    1. Since DP can support 1, 2, or 4 lanes, you can NOT output DP to both Type-C ports with the same source since one Type-C port may request 4 lanes while the other port may request 2 lanes, the host can't handle the lane incompatibility.

    2. TI does NOT have a 1:2 Type-C MUX solution. We will need multiple chips cascading to achieve the 1:2 solution.

    Thanks

    David

  • 0 in reply to David (ASIC) Liu
    TI__Guru 60865 points

    HI Peter,

    We are closing this thread pending response.  If you respond with additional information / questions, the thread will reopen.

    Regards,

    JMMN