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(ADV7611)Stop the Free run and I2S output

Question asked by donadona999s on Jan 27, 2016
Latest reply on Feb 1, 2016 by donadona999s

Hi !

 

I want to check about my understanding.

 

1)

Free run output mode that provides stable timing when no video input is present.

So if I don't input HDMI , free run will be active .

And to control this , I should use "HDMI_FREE_EN" resister.

If I put "HDMI_FREE_EN" to "0",  free run will not to be active so

if I don't input HDMI , no signal will output .

Is my understanding is correct?

 

2)

And also if I can "OFF" the freerun,

what will happen to I2S output pin?

Our customer wants to know about this because they have

noise issue about there system and it looks like SCLK is the noise source.

So they want to stop the I2S signal while the HDMI is not connected .

Can you give me some advice about this?

 

Best regards.

Kawa

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