CS43L22 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS43L22

Low Power, Stereo DAC w/Headphone & Speaker Amps

Cirrus Logic 

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CS43L22

7.26.3 PCMx Overflow (Read Only)

Indicates the over-range status in the PCM data path.

PCMxOVFL

0

1

Application:

PCM Overflow Status:

No digital clipping has occurred in the data path of the PCM (“PCM Channel x Volume” on page 47) of the

DSP.

Digital clipping has occurred in the data path of the PCM of the DSP.

“DSP Engine” on page 21

7.27 Battery Compensation (Address 2Fh)

7

6

5

BATTCMP VPMONITOR Reserved

4

Reserved

3

VPREF3

2

VPREF2

1

VPREF1

0

VPREF0

7.27.1 Battery Compensation

Configures automatic adjustment of the speaker volume when VP deviates from VPREF[3:0].

BATTCMP

0

1

Application:

Automatic Battery Compensation

Disabled

Enabled

“Maintaining a Desired Output Level” on page 27

7.27.2 VP Monitor

Configures the internal ADC that monitors the VP voltage level.

VPMONITOR

0

1

VP ADC Status

Disabled

Enabled

Notes:

1. The internal ADC that monitors the VP supply is enabled automatically when BATTCMP is enabled, re-

gardless of the VPMONITOR setting. Conversely, when BATTCMP is disabled, the ADC may be en-

abled by enabling VPMONITOR; this provides a convenient battery monitor without enabling battery

compensation.

2. When enabled, VPMONITOR remains enabled regardless of the PDN bit setting.

56

DS792F2

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