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TFP401A: TFP401A grounding in noisy environment

Expert 1105 points

Part Number: TFP401A

Hello,

We use TFP401A in a noisy environment. To cope with EMI issues we do the following;

* Use common mode choke and a PI filter on power input

* Use common mode choke and ESD for HDMI lines

My question would be;

How should one connect Gnd signal from HDMI to TFP401A GND,

If a direct connection is made, won't there be a possibility for EMI issue?


Below you can find an illustration for the problem.