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32 Bit Audio with ADAU1442

Question asked by logoho on Apr 2, 2015

Hi there,


I have a modular system with an ADAU1442 as signal processor. I would like to use an ADC and a DAC with a bit depth of 32 Bit. I know that the processor con process 24-, 20- and 16 Bit Data, but one audio frame in the I2S stream is 32 bit long.  Except of the bit depth, the ADC/DACs have very nice properties and I would like to use them...


Is it possible to use 32 bit ADCs/DACs in combination with the ADAU1442? The 8 LSBs will be truncated/ignored or will the additional Bits cause problems?


Best regards,