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ADV7619 : unexpeckted LLC frequency at UHD input

Question asked by WolfgangZ on May 5, 2017
Latest reply on May 16, 2017 by WolfgangZ

I have a ADV7619 on a customer board which was supplied with a 2160p30 HDMI YCbCr 4:2:2 signal from a quantumdata 780D Generator. At the LLC-output I measured a clock-signal of about 165 MHz instead of the expected 148,5 MHz.

What may be the reason for this 10% difference?