CODEC Motherboard Manual Version 1.3
Page 25 of 66
April 12, 2016
CODEC Motherboard
11 Equalizer Control Panel
This Control Tab gives access to the various controls and settings for the Equalizer and 3-D
Audio digital signal processing blocks. This pair of functions may be applied to either the ADC
digital outputs, or to the DAC digital inputs, but not to both paths at the same time.
These features are explained in detail in the NAU8822 device Design Guide documentation.
Also, the names for each control bit in this panel match the names given to specific control bits in
the NAU8822 control registers as described in the detailed register map in the NAU8822 Design
Guide. The description and function for each of these bits can be found (most easily by doing a
text string search) in the Details of Register Operation appendix portion of the NAU8822 device
Design Guide.
This panel provides both graphical equalizer style controls and control panel style controls to
modify the Equalizer settings. A change in either type of control is reflected in both controls.
Additionally, a few Equalizer presets are provided in a scrolling window beneath the 3-D Audio
controls. These presets give some examples of the many ways to configure the Equalizer. When
a preset is applied, the settings for these are reflected in all of the control panels, and also, in the
register map.
Figure 12: EQUALIZER CONTROL PANEL
