42.6.2 Equalizer

The CLASSD offers 12 pre-programmed equalization filters.

A zero-cross detection system is used to modify the equalizer on-the-fly with minimum disturbance on the output signal.

Programming of the equalization filter is detailed in section CLASSD Interpolator Mode Register.

The following figures show the frequency response of the equalizer function implemented in the D/A channels.

Figure 42-5. Bass Filters Response
Figure 42-6. Medium Filters Response
Figure 42-7. Treble Filters Response