It seems both 1701 and 1761 have the same DSP power. Their major difference is analog input and output configuration. If I am using external ADC and DAC, 1701 is probably the choice. Correct?
Sorry for my late response. I just returned from vacation.
There are a few other factors that may help you decide between the ADAU1761 and ADAU1701. Here is a comparison table:
As you can see, the ADAU1701 has a few additional features like auxiliary ADCs, more GPIOs, and self-boot.
One thing that is not captured in this table is cost and power consumption. The ADAU1761 wins in both of those categories, with lower cost and current consumption compared to the ADAU1701.
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