AnsweredAssumed Answered

(ADV7511W & ADV7611)When the vsync frequency moves, does the device can catch the image?

Question asked by donadona999s on Apr 7, 2016
Latest reply on Apr 21, 2016 by GuenterL


Hi !

 

I have some question about ADV7511W-ADV7611.

One of our customers are using ADV7511W-ADV7611 with HDMI interface.

HDMI.JPG

But the camera is not the normal camera.

The vsync is synchronize to the shutter so the vsync is not constant frequency.

HDMI.JPG

When the vsync frequency is not constant, the output will be something wrong.

As I attached , when the frequency is 40Hz , there is no problem.

(1) Is there any way to input and output the not constant frequency vsync image?

 

With my understanding , the device can handle only the constant frequency sync signal.

So it is impossible to handle these kind of signal.

Also I think these kind of input signal is not based on CAE-861 so anyway it is not supported by ADV7511W 6 ADV7611.

I think the only way to solve this problem, they should make the output vsync signal to constant frequency(kind of 40Hz)

(2) Is my understanding are correct?

 

But if you can give me some advise about this, it will help me so much.

 

Best regards.

Kawa

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