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SN65DP159: SN65DP159 AC Coupling on TMDS Input

Part Number: SN65DP159
Other Parts Discussed in Thread: TMDS181

Hi,

I am currently using the SN65DP159 in my design. I noticed the datasheet specifies AC-coupled TMDS inputs, but my FPGA provides a DC-coupled TMDS output.

  1. Why is AC coupling specifically required for this chip?

  2. Can the SN65DP159 accept a direct DC-coupled input from an FPGA, or is AC coupling mandatory for the output to function correctly?

  3. If I route the FPGA output directly to the chip, will I still get a valid output signal?"