Default value: 0
System clock rate = 256 fS, 384 fS, 512 fS, 768 fS, or 1152 fS:
System clock rate = 128 fS or 192 fS:
The OVER bit is used to control the oversampling rate of the delta-sigma D/A converters. The OVER = 1 setting is recommended when the sampling rate is 192 kHz (system clock rate is 128 fS or 192 fS).