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TS3DV642: Can TS3DV642 be used to switch MIPI-DSI signals?

Part Number: TS3DV642

I plan to use TS3DV642 to switch MIPI-DSI signals. However, in TS3DV642 datasheet, it is mentioned that "The TS3DV642 is not designed for passing signals with negative swings; the high-speed signals need to be properly DC biased (usually ~1 V) before being passed to the TS3DV642." This "~1 V" raised my concern. The MIPI-DSI TX and RX chips I work with are compliant with MIPI D-PHY spec v2.0, and D-PHY v2.0 specifies a 70~330 mV common-mode voltage in HS mode, which is far from 1V.

I'd like to ask: Can TS3DV642 be used to switch MIPI-DSI signals? Does anyone have a success story? Thanks a lot.

  • Xing,

    I have contacted the appropriate application engineer for this device about this question who will help you soon.

    Thank you,
    Adam
  • In reply to Adam Torma:

    Hi ,

    40 days passed. Any update? Thanks a lot.

  • In reply to Xing Fu:

    Xing,

    I'm sorry you haven't received a reply yet. I will escalate this through a different channel this time to see if it can help get you some assistance.

    Thank you,
    Adam
  • In reply to Adam Torma:

    Very sorry for the delay.

    TS3DV642 should support common mode as low as 0V but I need to double check why datasheet state such a way.

    Similar device HD3SS215 has common mode of 0 to 3.3V.

    In both devices passing MIPI high speed is not my concern, but I need to check if the Low Speed single ended is a problem. as these devices are designed for differential signal. please give me a day to check this SE capability
  • In reply to WIN Maung:

    We have recommendation for MIPI

    HD3SS2312 device supports MIPI and please look at if it fits your application

    SN75DPHY440SS device is a MIPI retimer/deskewer that you might be interested.

  • In reply to WIN Maung:

    Thanks all.

    We made a test board using TS3DV642, and confirm it works.

    This ticket can be closed. Thanks again!

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