The IC has overflow channel indicators but no description of thresholds which activate this. The absolute maximum analog input voltage is 6V. The evaluation board PCM4222EVM schematics shows no input clamps.
1) Is there internal clamping in the PCM4222?
2) If not - what method of clamping the inputs is suggested?
I would think clamping to 4V would be advisable given the 2.8Vpp on 1.95Vcom
Thanks