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ADV7513 TMDS output driver setting for EMI Reduction

Question asked by payam on Oct 12, 2017
Latest reply on Oct 12, 2017 by GuenterL

Is there any way to trim TMDS outputs driver current or drivers slope? (software or hardware).

I Designed a card which has a ESD protection and common mode chokes before connector. Traces are shorter than 4mm but I have still EMI problems. It seems I have to reduce output drive currents. Outputs has some overshoot and undershoot and it causes EMI.

All traces are routed properly on a controlled impedance PCB. I found so many registers which are documented as “Must be set to a suggested constant for proper operation”. Is there any way to manipulate output drivers to reduce this ringing phenomenon?

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