Should it wrap or clip? We are only seeing clipping if the ALC is enabled.
Even with the ALC enabled, if you drive it with a high enough signal level you will clip the ADC.
Clipping is what you should see.
I went into the lab and tested the clipping behavior. It looked normal. I tried with the ALC enabled and disabled. I also tried a low frequency signal with the ALC enabled, the attack and release times as fast as possible and it all looked normal. I have attached a screenshot of the signal I saw on the scope. This is the autoranged output of the Audio Precision so do not pay attention to the voltage level on the scope.
I could never get it to wrap.
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