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Re: Signal latancy in the ADV7181C and ADV7392.

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For he combination of AD and Intersil, the pixel clock rate is 13.5 MHz (Since Intersil's serializer needs 13.5MHz clock rate). If I convert this into time it is 0.074us. You mentioned the delay in CP mode is 20 ~ 100 times of pixel clock rate. Then the delay is 1.48 ~ 7.4us. Is it correct? Can we roughly say this is signal latency passing through ADV7181C/7392?

However, I found one document of ADV7123 video DAC (attached as your reference) , where the delay is less than 10ns.

 

Why are there any big difference between two?

 

BR.


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