AS3525-A/-B C22O22
Data Sheet, Confidential
7.4.9.3 Register Description
Table 125 Line Input Related Register
Name
AudioSet1
Base
Offset
Description
Enable/disable driver stage
I2C audio master
0x14
Table 126 LINE_IN1_R & LINE_IN2_R Register
Name
Base
Default
0x00
LINE_IN1_R, LINE_IN2_R
I2C audio master
Right Line Input Registers
Offset: 0x0A, 0x0C
Bit Name
This register is reset when the block is disabled in AudioSet1 register (0x14) or at a
DVDD-POR. The register cannot be written when the block is disabled.
Bit
Default
00
Access
Bit Description
7:6
5
n/a
do not change
LI1R_Mute_off
LI2R_Mute_off
LI1R_VOL
0
R/W
0: right line input is set to mute
1: normal operation
4:0
00000
R/W
volume settings for right line input,
adjustable in 32 steps @ 1.5dB
11111: 12 dB gain
LI2R_VOL
11110: 10.5 dB gain
..
00001: -33 dB gain
00000: -34.5 dB gain
Table 127 LINE_IN1_L & LINE_IN2_L Register
Name
Base
Default
0x00
LINE_IN1_L, LINE_IN2_L
I2C audio master
Right Line Input Registers
Offset: 0x0B, 0x0D
This register is reset when the block is disabled in AudioSet1 register (0x14) or at a
DVDD-POR. The register cannot be written when the block is disabled.
Bit
Bit Name
Default
00
Access
Bit Description
Stereo or mono input selection
7:6
LI1_Mode
LI2_Mode
R/W
00: inputs switched to single ended stereo
01: inputs switched to differential mono
10: inputs switched to single ended mono
11: reserved, do not use.
0: left line input is set to mute
1: normal operation
volume settings for right line input,
adjustable in 32 steps @ 1.5dB
11111: 12 dB gain
5
LI1L_Mute_off
LI2L_Mute_off
LI1L_VOL
0
R/W
R/W
4:0
00000
LI2L_VOL
11110: 10.5 dB gain
..
00001: -33 dB gain
00000: -34.5 dB gain
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