CS43L36 datasheet(76/89 Pages) CIRRUS

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DS1081F3

CS43L36

7.9 HP Control Register

7.10 Class H Register

7.11 Volume Control

2HPOUT_

CLAMP

HPOUT clamp. Configures an override of the HPOUT clamp to ground when the channels are powered down.

0 (Default) Clamp to ground when channels are powered down.

1 Clamp is disabled when the channels are powered down. The pulldown to GNDA depends on the HPOUT_

PULLDOWN setting.

1DAC_HPF_

DAC high-pass filter enable. Configures the internal HPF before DAC. Changes to this bit must be made only if PDN_

ALL = 1. See Section 4.2 for details.

0 Disabled. This must be cleared only for test purposes.

1 (Default) Enabled. The corner frequency is set to 0.935 Hz when FsINT =48kHz.

0—

Reserved

7.9.1

HP Control

Address 0x2001

R/W

654

—

ANA_MUTE_B ANA_MUTE_A FULL_SCALE_VOL

—

Default

Bits

Name

Description

7:4

—

Reserved

ANA_MUTE_

Analog mute Channel B. See Section 4.2 for details.

0 Unmuted

1 (Default) Muted

ANA_MUTE_

Analog mute Channel A. See Section 4.2 for details.

0 Unmuted

1 (Default) Muted

FULL_

SCALE_VOL

Full-scale volume. Determines the maximum volume for the headphone output.

See Section 4.2 for details.

0 (Default) 0 dB

1 –6 dB. This setting is recommended if the load is approximately 15

.

0—

Reserved

7.10.1 Class H Control

Address 0x2101

R/W

765

43210

—ADPTPWR

Default

000111

Bits

Name

Description

7:3

—

Reserved

2:0 ADPTPWR Adaptive power adjustment. Configures how power to HP output amplifiers adapts to the output signal level. Section 4.2

gives detailed descriptions of supported settings.

000 Reserved

001 Fixed, Mode 0—VP_CP Mode (±2.5V)

010 Fixed, Mode 1—VCP Mode (±VCP)

011 Fixed, Mode 2 —VCP/2 Mode (±VCP/2)

100 Fixed, Mode 3 —VCP/3 Mode (±VCP/3)

101–110 Reserved

111 (Default) Adapt to signal. The output signal dynamically determines

the voltage level.

7.11.1 Channel A Input Volume

Address 0x2301

R/W

76543210

—

CHA_VOL

Default

001111

Bits

Name

Description

7:6

—

Reserved

5:0

CHA_

VOL

Input attenuation. Sets the attenuation level to be applied to various stereo digital inputs. See Section 4.1 for details. Each input

can be muted or attenuated from –62 to 0 dB in 1-dB steps.

00 0000 0 dB

00 0001 –1.0 dB …

11 1110 –62.0 dB

11 1111 (Default) Mute.

Bits

Name

Description

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