AD1881A
Record Select Control Register (Index 1Ah)
Reg
Name
D15 D14 D13 D12
D11
X
D10
LS2
D9
D8
D7
X
D6
X
D5
X
D4
X
D3
X
D2
D1
D0
Default
Num
1Ah Record Select
X
X
X
X
LS1
LS0
RS2
RS1
RS0
0000h
RS[2:0]
LS[2:0]
Right Record Select
Left Record Select.
Used to select the record source independently for right and left. See table for legend.
The default value is 0000h, which corresponds to MIC in.
RS2 . . . RS0
Right Record Source
0
1
2
3
4
5
6
7
MIC
CD_R
VIDEO_R
AUX_R
LINE_IN_R
Stereo Mix (R)
Mono Mix
PHONE_IN
LS2 . . . LS0
Left Record Source
0
1
2
3
4
5
6
7
MIC
CD_L
VIDEO_L
AUX_L
LINE_IN_L
Stereo Mix (L)
Mono Mix
PHONE_IN
Record Gain (Index 1Ch)
Reg
Name
D15 D14 D13 D12
D11
D10
D9
D8
D7
X
D6
X
D5
X
D4
X
D3
D2
D1
D0
Default
Num
1Ch Record Gain IM
X
X
X
LIM3 LIM2 LIM1 LIM0
RIM3 RIM2 RIM1 RIM0 8000h
RIM[3:0]
LIM[3:0]
IM
Right Input Mixer Gain Control. Each LSB represents 1.5 dB, 0000 = 0 dB and the range is 0 dB to +22.5 dB.
Left Input Mixer Gain Control. Each LSB represents 1.5 dB, 0000 = 0 dB and the range is 0 dB to +22.5 dB.
Input Mute.
0 = Unmuted,
1 = Muted or – dB gain.
∞
IM
xIM3 . . . xIM0 Function
0
0
1
1111
0000
xxxxx
+22.5 dB Gain
0 dB Gain
dB Gain
–
∞
REV. 0
–15–
ADI [ ADI ]
