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TUSB8044: DisplayPort MST Hub

Prodigy 210 points

Replies: 3

Views: 1187

Part Number: TUSB8044

Hi.

Can we use a TUSB8044 chips as 3-Port DisplayPort MST Hub.

If yes, is there the reference project of this HUB

 

Thanks in advance. 

  • Hello Igor,

    No, the TUSB8044 is an standard USB Hub and as defined by the USB Type-C specification:
    "USB hub ports shall not implement or pass-through Alternate or Accessory Modes."

    We do have a reference design for an "Alternate mode expander" or "Dock" as defined by the USB Type-C specification. Please take a look at the "USB Type-C™ and Power Delivery Minidock With Video and Charging Support Reference Design" at www.ti.com/.../tida-01243 and an evaluation board is available at www.ti.com/.../usb-ctm-minidk-evm

    Regards,
    Jorge

  • In reply to Jorge Llamas (SWAT):

    Hi Jorge.
    Thank you for response and advice.
    I ask because i saw in chip's datasheet the DisplayPort implementation:

    What is here the U7(DP HUB), additional chip? Which one?
    Best regards.
    Igor.

  • In reply to IgDor:

    Hello Igor,

    That would depend on you application.
    If you need a single DFP supporting DP alternate mode, you can just have a DP redriver to compensate for signal loss (e.g. SN65DP159), but if you need multiple DFP with DP support, then you will need an MST Hub/DP splitter like MegaChips' STDP4320 which is being used on the MiniDock reference design.

    Regards,
    Jorge

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