We have a galvanic isolated connection between ADV7842 and TFP410 using a 24-bit pixel bus, as depicted below.
We plan to implement an LLC phase calibration during production based on the pass/fail shmoo-plot approach.
I tried setting 8 different phase values for the LLC (over the entire range) and also the two CLK input polarities of TFP410 (rise / falling) during a 1080p60 (Full HD) video capture.
I could see the phase changes in the oscilloscope comparing the LLC and one of the 24-bit signals, but nothing happened with the video being captured.
Shouldn’t I see any disturbances?