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TFP410: HDMI output issue

Ruixin Feng
Intellectual 2515 points

Part Number: TFP410
Other Parts Discussed in Thread: AM6252,

Hi team, 

Customer use attached design and configuration but can't get normal HDMI output. The waveform are also in attachment. could you pls help to analyze and comment it? Thanks a lot!

AM6252+TFP410 HDMI issue.xlsx

Rayna

  • 0
    TI__Guru**** 183301 points

    Rayna

    For the common mode choke they are using, can you please ask them to double check its bandwidth or maybe replace them with 0-ohm resistor first? We want to make sure the HDMI signal is not limited by the choke bandwidth

    Can you also share their layout in Allegro format for review? 

    Have they done any HDMI compliance testing on the output?

    Where is their ground and is the TFP410 thermal pad soldered to the board ground?

    Thanks

    David