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ADV7604 PowerUp sequence

Question asked by ThomasB on May 9, 2012
Latest reply on May 9, 2012 by GuenterL

Hello,

 

I have a question about the recommended PowerUp sequence for the ADV7604.

 

The Hardware Manual says: There should be a 400ms delay between 3.3V supplies being enabled and 1.8V supplies being enabled.

But the Evaluation board uses a 100K and 470nF Cap to controll the 1V8_EN Signal. This results in a delay of around 60ms for the 1.8V supply.

 

Should it be 40ms in the manual or is it a bug of the evaluation board ?

 

Thanks

Thomas

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