What is the maximum and minimum voltages the DA7212 can accept at the AUX inputs without (the risk of) damaging the IC?
In our circuit VDD_A is 1,8V.
We cannot guarantee anything beyond the datasheet values. For an Aux differential signal: 1.6 * VDD_A.
So, according to the datasheet Vmax at AUX input for single ended is 0.8 × VDD_A Vpp. Does it mean that Vmax_peak is +0,4 × VDD_A and Vmin_peak is -0.4 × VDD_A? I can't see that the datasheets says whether the signal should be symmetrical with respect to GND or VDD_A/2.
That correct, so VMAX is +0.4 x VDD_A and VMIN is -0.4 x VDD_B.
Does that make sense?
Yes, it does make sense and it answers my question. Thank you