AS3543 datasheet(62/92 Pages) AMSCO

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AS3543 3v2

Data Sheet - R e g i s t e r D e f i n i t i o n

Table 50. DAC_R Register

Name

Base

Default

DAC_R

2-wire serial

00h

Offset: 0Eh

Right DAC Output Register

Configures the gain from DAC output to mixer input (Σ).

This register is reset when the block is disabled in AudioSet1 register (14h) or at a

AVDD27-POR. The register cannot be written when the block is disabled.

Bit

Bit Name

Default

Access

Bit Description

7:5

000

n/a

4:0

DAR_VOL<4:0>

00000

R/W

volume settings for right DAC output, adjustable in 32 steps @

1.5dB; gain from DAC output (N19) to mixer input (N23)

11111: 6 dB gain

11110: 4.5 dB gain

00001: -39 dB gain

00000: -40.5 dB gain

Table 51. DAC_L Register

Name

Base

Default

DAC_L

2-wire serial

00h

Offset: 0Fh

Left DAC Output Register

Configures the gain from DAC output to mixer input (Σ) and controls MUTE switch H.

This register is reset when the block is disabled in AudioSet1 register (14h) or at a

AVDD27-POR. The register cannot be written when the block is disabled.

Bit

Bit Name

Default

Access

Bit Description

7:6

n/a

MUTE_H_OFF

R/W

Control of MUTE switch H

0: DAC output is set to mute

1: normal operation

4:0

DAL_VOL<4:0>

00000

R/W

volume settings for left DAC output, adjustable in 32 steps @

1.5dB; gain from DAC output (N22) to mixer input (N26)

11111: 6 dB gain

11110: 4.5 dB gain

00001: -39 dB gain

00000: -40.5 dB gain

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