CS35L32 datasheet(39/51 Pages) CIRRUS

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DS963F5

CS35L32

7.13 ADSP Control

Address 0x0F

R/W

654

ADSP_DRIVE

M/S

DATCNF[1:0]

—

Default

010

Bits

Name

Description

7ADSP_

DRIVE

ADSP output drive strength. Selects the drive strength used for the ADSP outputs. These outputs include SDOUT as well as

SCLK and LRCK when the device is in Master Mode. Table 3-8 lists drive-strength specifications.

0 (Default) 1x

10.5x

M/S

ADSP Master/Slave Mode. Configures the ADSP I/O clocking. See Section 4.11.2 for details.

0 (Default) Slave (SCLK/LRCK input only)

1 Master (SCLK/LRCK output only)

5:4 DATCNF Data configuration for dual CS35L32 applications only. Determines the data packed in a two-CS35L32 configuration.

00 Left/right channels VMON[11:0], IMON[11:0], VPMON[7:0]. See Table 4-10.

01 Left/right channels VMON[11:0], IMON[11:0], STATUS. See Table 4-11.

10 (Default) left/right channels VMON[15:0], IMON [15:0]. See Table 4-12.

11 Left/right channels VPMON[7:0], STATUS. See Table 4-13.

SHARE SDOUT sharing. Determines whether one or two CS35L32 devices are on board sharing SDOUT.

0 (Default) One IC. Data configuration per Table 4-9.

1 Two ICs. For data configuration, refer to DATCNF (bits 5:4. above).

2:0

—

Reserved

7.14 Class D Amplifier Control

Address 0x10

R/W

654

—

AMP_GAIN[2:0]

GAIN_CHG_ZC

—

Default

001

Bits

Name

Description

7:6

—

Reserved

5:3 AMP_GAIN Amplifier gain. Configures the amplifier gain. Step size: ~3 dB

000 Mute (–80 dB)

001 9 dB

010 (Default) 12 dB

011 15 dB

100 18 dB

101–111 Reserved

2GAIN_

CHG_ZC

Gain change zero-cross. Configures when AMP_GAIN (see p. 39) changes are applied.

0 Changes are not aligned to zero crosses.

1 (Default) Changes are delayed to occur at zero crossings

1:0

—

Reserved

7.15 Protection Release Control

Address 0x11

R/W

765

—

AMP_SHORT_RLS

—

OTE_RLS

Default

Bits

Name

Description

7:3

—

Reserved

2AMP_

SHORT_

RLS

Amplifier short protection release. Releases amplifier short protection that places the device into Speaker-Safe Mode if the

amplifier short condition is no longer present, which can be determined by reading AMP_SHORT (see Section 7.19) twice.

0 (Default)

 1  0 sequence

If the amplifier short condition is present, Speaker-Safe Mode is applied.

After the sequence, if the short condition is no longer present, Speaker-Safe Mode is cleared unless

an OTE condition is active. During the sequence, short monitoring is inactive because the amplifier is

in an OFF state, as explained in Section 7.19. Short monitoring resumes after the sequence.

1—

Reserved

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