AS3543 datasheet(61/92 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 48. LINE_IN_R Register

Name

Base

Default

LINE_IN_R

2-wire serial

00h

Offset: 0Ah

Right Line Input Register

Configures the gain from right analog line input MUX E to mixer input (Σ) and controls

MUTE switch B.

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

LI_HIQ

R/W

0: line input set to low power mode

1: line input set to high quality mode

MUX_E

R/W

Selects the line input

0: MUX_E output connected to Line Input 1

1: MUX_E output connected to Line Input 2

MUTE_B_OFF

R/W

Control of MUTE switch B

0: right line input is set to mute

1: normal operation

4:0

LIR_VOL<4:0>

00000

R/W

volume settings for right line input, adjustable in 32 steps @

1.5dB; gain from MUX output (N27) to mixer input (N10)

11111: 6 dB gain

11110: 4.5 dB gain

00001: -39 dB gain

00000: -40.5 dB gain

Table 49. LINE_IN_L Register

Name

Base

Default

LINE_IN_L

2-wire serial

00h

Offset: 0Bh

Left Line Input Register

Configures the gain from analog left line input MUX E to mixer input (Σ) and controls

MUTE switch G.

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

LO_DISCHG_OFF

R/W

0: normal operation

1: disables discharge resitors. Need if the line ouptut is directly

connected to the line input for useing the same connector.

LI_MODE

R/W

Selects the line input mode

0: stereo

1: 2x mono single ended

MUTE_G_OFF

R/W

Control of MUTE switch G

0: left line input is set to mute

1: normal operation

4:0

LIL_VOL<4:0>

00000

R/W

volume settings for left line input, adjustable in 32 steps @

1.5dB; gain from MUX output (N28) to mixer input (N17)

11111: 6 dB gain

11110: 4.5 dB gain

00001: -39 dB gain

00000: -40.5 dB gain

AS3543 Datasheet(PDF) 61 Page - ams AG

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