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SN65DP149: DDC clock operation

Part Number: SN65DP149


I'm trying to use SN65DP149 as DP++ to HDMI redriver. In the application, on the source side, SCL and SDA pins are driven by the video source. However, on the sink side, nothing moves. SCL_SNK constantly stays at 5VDC. What could cause this issue? I'm sending the probe results of the SDA_SRC and SCL_SRC below. Somehow these signals don't pass through the IC.