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ADuCM360.IOVDD. Can I use 1.8V as IOVDD ?

Question asked by Jackey on Jan 19, 2014
Latest reply on Jan 27, 2014 by ABuda

Hi all,

 

I assigned following structure.

 

IOVDD : 1.8V

AVDD : 3.3V.

 

But IOVDD pin of ADuCM outputs 2.2V to out side of chip.

Why does it outputting ?

 

- Our host DSP is using 1.8V digital interface.

- The absolute voltage input of ADC is 2.5V.

Thus I have designed above.

 

Can I use 2 voltages for each inputs ?

 

Thanks.

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