(ADV7480)What will happen if TTL clk input is unstable.

Hi !

I have a question about ADV7480.

Our customer connect ADV7480 after ADV7181D.

When they change NTSC<=>component, the LLC will be unstable.

I think this is OK because this happens when they change ADV7181D NTSC⇔component and frequency will change.

ADV7181D LLC output is connected to ADV7480 LLC input.

Even after Clock change to stable,ADV7480 cannot output image.

Sometime fail to output but sometime OK.

Is there a possibility that the ADV7480 hangs up or fails to output an image inside the device if a corrupted CLK is input to the LLC?

Best regards

Kawa