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Migrating from ADAU1701 to ADAU1401

Question asked by Nando.One on Sep 11, 2014
Latest reply on Dec 1, 2014 by mmmike

Hello there, how are you?

 

Recently I've been requested to change the DSPs from ADAU1701 to ADAU1401 due to the operating temperature range.

 

Reading the datasheet of the 1401 I couldn't find ANY difference from the datasheet of the 1701. Pins are the same, register map is the same, the datasheets seem to be the same in every word. I honestly find it pretty strange that different ICs could be the very same, except for the temperature range.

 

Anyway, I am about to make a sample PCB, and I really would like to be 100% sure that I don't need to change anything except put the 1401's. Is that correct? Is there anything I should be worried about regarding the software or the hardware?

 

I am using the DSPs in SPI mode with a PIC.

 

Thank you very much.

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