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TMDS 1:2 fanout buffer for Dual Link DVI clock

Albert Ng
Prodigy 200 points
Other Parts Discussed in Thread: TFP401A, TMDS361B

Thinking about using two TFP401A for a dual link DVI application. The issue I am having is how to connect the  DVI clock +/- pair to 2 loads? Is there a TMDS 1:2 fanout driver for this purpose.

I wish the TFP401A had a programmable termination resistor between 50 and 100ohm on the DVI clock input.

  • 0
    TI__Guru* 76130 points

    Hello,

    Yes, there are TMDS switches like the TMDS361B but creating a dual-link system using two single link receivers is not that simple as split the clock.

    The TFP401A is not designed to work on a dual-link application.

    You can find more information about this at https://sps04.itg.ti.com/sites/ibu/cci/CCI%20Product%20Information/TFP%20Devices/Draft_Dual_link_apnote_a.pdf

    Regards.