DS792DB1
15
CDB43L22
4.4
Analog and PWM Output Volume Tab
The “Analog and PWM Output Volume” tab provides high-level control of the CS43L22 PWM outputs,
HP/Line output volume levels and charge pump frequency. This tab also provides controls for the PWM out-
put including speaker volume and PWM gain. Temperature and Battery monitoring controls for the
PWM/Speaker outputs are also on this tab. Status text detailing the CS43L22’s specific configuration is
shown in read-only edit boxes, in parenthesis or appears directly below the associated control. This text will
change depending on the setting of the associated control. A description of each control group is outlined
below. See the CS43L22 datasheet for complete register descriptions.
Headphone/Line Analog Output
- Volume controls and adjustments for the DAC channel (outside of the
DSP). The modulation index and gain settings make up the parameters that determine the full scale head-
phone/line output level.
PWM Output
- Volume, mute, power down and other functional controls for the PWM speaker outputs.
Temperature and Battery Monitor/Control
- Battery Compensation, Thermal Foldback, Temperature Shut-
down and Battery Monitor for the PWM/Speaker outputs.
Figure 7. Analog and PWM Output Volume Tab
Summary of Contents for CDB43L22
Page 20: ...20 DS792DB1 CDB43L22 8 CDB43L22 SCHEMATICS Figure 10 CS43L22 Analog I O Schematic Sheet 1 ...
Page 21: ...DS792DB1 21 CDB43L22 Figure 11 S PDIF Digital Interface Schematic Sheet 2 ...
Page 22: ...22 DS792DB1 CDB43L22 Figure 12 Micro FPGA Control Schematic Sheet 3 ...
Page 23: ...DS792DB1 23 CDB43L22 Figure 13 Power Schematic Sheet 4 ...
Page 24: ...24 DS792DB1 CDB43L22 9 CDB43L22 LAYOUT Figure 14 Silk Screen CDB43L22 CS43L22 ...
Page 25: ...DS792DB1 25 CDB43L22 Figure 15 Top Side Layer ...
Page 26: ...26 DS792DB1 CDB43L22 Figure 16 GND Layer 2 ...
Page 27: ...DS792DB1 27 CDB43L22 Figure 17 Power Layer 3 ...
Page 28: ...28 DS792DB1 CDB43L22 Figure 18 Bottom Side Layer ...
