Cirrus Logic CDB42L55 - Manual (Page 15)

DS773DB1 15
CDB42L55
4.5 Analog Output Volume Tab
The “Analog Output Volume” tab provides high-level control of the CS42L55 Class H output amplifier,
HP/Line output volume levels, charge pump frequency and overall master volume level. This tab also pro-
vides control functions for the DAC channel limiter. Status text detailing the CODEC’s specific configuration
is shown in read-only edit boxes. This text will change depending on the setting of the associated control.
A description of each control group is outlined below (register descriptions are in the CS42L55 data sheet).
Class H Controls - Controls for defining the digital and analog advisory volume, charge pump frequency and
adaptive power supply mode for the Class H amplifier.
Headphone/Line Amplifiers - Controls for configuring mutes and for setting the volume of the signal out of
the headphone/line amplifier. Also allows one to configure the HP/Line mux to choose if the input signal to
the HP/Line amplifiers comes from the DAC or the PGA.
Limiter - Configuration settings for the peak detect and limiter in the codec
Master Volume Control - Sets the volume of the signal out of the DSP.
Figure 8. Analog Output Volume Tab