(ADV7611)Why ADV7611 output SCLK befor HDMI input?

Hi !

Thank you for your reply.

We will wait for your reply.

We already know that we can disable by using TRI_AUDIO.

Let us know if you can give us the initial frequency.

Q1)
Why ADV7611 output this frequency?

Q2)

Is the frequency always constant at 9.8437 MHz?

Best regards

Kawa

Hi !

How is it going?

Our customer want your answer ASAP.

Best regards

Kawa

Hi,

We have verified in our evaluation board, here also we could see the same phenomena i.e frequency always constant at 9.8437 MHz.

But don't know where it originate from,As Guenter mentioned "this might be the audio Pll is free running and maxing out".

This query has already forwarded to part specialist.

Thanks,

Poornima

Hi !

Thank you for your help.

I understood.

I will wait your additional advice.

Best regards

Kawa

Hi 

How is your progress thereafter?

Best regards
Kawa

Hi,

The recommendation from the expert in this case will be "to tristate the audio pin until audio is present and have not qualified the behaviour for when the audio source is not present but the pins are not tristated as the recommendation is to tristate until there is audio"

Thanks,

Poornima

Hi 

Thank you for your reply.

I understood.

Best regards

Kawa