CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 15

• Manufacturer Part Number: CDB42L55
• Description: Eval Bd Ultra Low Power Stereo Codec
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L55

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L55
• Primary Attributes: 2 Stereo Analog Inputs, Stereo Line and Headphone Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: GUI, USB, RS232, I2C Interfaces, USB or External or Battery Power Supply
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1506; CDB-42L55

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
DS773DB1
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