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TDP158: TDP158 DDC signal quality issue with 25m cable

Part Number: TDP158

Hi Team,

My customer reported an issue, TDP158 on notebook, connected to a TV with 25m cable, the DDC can not read EDID. 

They looked at the waveform of the DDC I2C, after the long cable, the waveform are totally distorted. So it is not IT's issue. But do you know if we have any level shifter of the I2C can recover the signal?