I'd like to isolate HDMI(TMDS) between IN side and OUT side. I have an idea for isolation for capacitive isolation by using PTN3363, HDMI redriver. The isolation means isolating power & ground.
Your product, PTN3363, is available for AC Coupling in TMDS input line. I think that transfering only small signal(AC Coupled TMDS signal) not transfering Common-mode volatage by AC Coupling.
Motherboard(TMDS output of HDMI) -> Isolating by AC Coupling -> PTN3363(Self-bias by Isolated power) -> TV(TMDS input of HDMI) Motherboard(DDC/HPA of HDMI) <-> Isolating by Photo Coupler <-> PTN3363 -> TV(DDC/HPA of HDMI)