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.