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ADAU1772 Power Consumption

Question asked by Mr.K on Jul 24, 2013
Latest reply on Jul 24, 2013 by BrettG

I have a question about the power consumption of ADAU1772.

 

In page9 of the ADAU1772 data sheet, the power consumption when AVDD=IOVDD is 3.3V is described as 11.5mA.

The measurement result of our board was 23mA.

 

ADVV=IOVDD = 3.3V
Master clock = 12.288MHz
Fs = 192KHz
Four ADCs and two DACs is used.
Parts such as LED are not used in the board.

 

What is thought as for the cause with large power consumption of our board?

 

Best Regards,

Mr.K

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