AD1887 Analog Devices, AD1887 Datasheet - Page 10

• Manufacturer Part Number: AD1887
• Description: AC97 SoundMAX Codec
• Manufacturer: Analog Devices

AD1887
Mic Volume (Index 0Eh)
MCV[4:0]
M30
MCM
Line In Volume (Index 10h)
RLV[4:0]
LLV[4:0]
LM
CD Volume (Index 12h)
RCV[4:0]
LCV[4:0]
CVM
R g
R g
R g
R g
R
N m
N m
N m
N m
N
0 h
0 h
0 h
0 h
0
R g
R g
R g
R g
R
N m
N m
N m
N m
N
1 h
1 h
1 h
1 h
1
R g
R g
R g
R g
R
N m
N m
N m
N m
N
1 h
1 h
1 h
1 h
1
E
E
E
E
E
0
0
0
0
0
2
2
2
2
2
e
e
e
e
e
u
u
u
u
u
e
e
e
e
e
u
u
u
u
u
e
e
e
e
e
u
u
u
u
u
h
g
h
h
m
g
m
g
m
N
N
N
N
N
M C
M C
M C
M C
M
V
V
V
V
V
N
N
N
N
N
L
L
L
L
L
V
V
V
V
V
N
N
N
N
N
CD
CD
CD
CD
C
V
V
V
V
V
o
o
o
o
o
a
a
a
a
a
I
I
I
I
I
u l
u l
u l
n i
n i
n i
n i
n i
m
m
m
m
m
u l
u l
a
a
a
o
o
o
o
o
C
a
a
o
o
o
o
o
a
a
a
a
a
D
u l
u l
u l
u l
u l
m
m
m
m
m
u l
u l
u l
u l
u l
m
m
m
m
m
m
m
m
m
m
e
e
e
e
e
e
e
e
e
e
e
e
e
m
m
m
m
m
e
e
m
m
m
e
e
e
e
e
I
I
I
e
e
e
e
e
m
m
I
I
n
n
n
n
n
e
e
e
e
e
e
e
e
e
e
D 5 1
D 5 1
D 5 1
D 5 1
D
M M
M M
M M
M M
M
Mic Volume Gain. Allows setting the Mic Volume attenuator in 32 steps. The LSB represents 1.5 dB, and the
range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Mic Boost Gain: Amplifies the Mic input. 0 = 0 dB, 1 = 30 dB
Mic Mute. When this bit is set to “1,” the channel is muted.
Right Line In Volume. Allows setting the Line In right channel attenuator in 32 steps. The LSB represents 1.5 dB,
and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Line In Volume Left. Allows setting the Line In left channel attenuator in 32 steps. The LSB represents 1.5 dB,
and the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Line In Mute. When this bit is set to “1,” the channel is muted.
Right CD Volume. Allows setting the CD right channel attenuator in 32 steps. The LSB represents 1.5 dB, and
the range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
Left CD Volume. Allows setting the CD left channel attenuator in 32 steps. The LSB represents 1.5 dB, and the
range is +12 dB to –34.5 dB. The default value is 0 dB, mute enabled.
CD Volume Mute. When this bit is set to “1,” the channel is muted.
5 1
C
C
C
C
C
D 5
D 5
D 5
D 5
D
C M
C M
C M
C M
C
M
V
V
V
V
V
1
1
1
1
1
D 5
D 5
D 5
D 5
D
LM
LM
LM
LM
L
5
M
M
1
1
1
1
1
5
D 4 1
D 4 1
D 4 1
X X X X X
D 4 1
D
D 4
D 4
D 4
D 4
D
X X X X X
4 1
D 4
D 4
D 4
D 4
D
X X X X X
1
1
1
1
1
4
1
1
1
1
1
4
D 3 1
D 3 1
D 3 1
D 3 1
D
X X X X X
D 3
D 3
D 3
D 3
D
X X X X X
3 1
D 3
D 3
D 3
D 3
D
X X X X X
1
1
1
1
1
3
1
1
1
1
1
3
D 2 1
D 2 1
D 2 1
D 2 1
D
X X X X X
D 2
D 2
D 2
D 2
D
L
L
L
L
L
2 1
C
C
C
C
C
D 2
D 2
D 2
D 2
D
L
L
L
L
L
1
1
1
1
1
L
L
L
2
L
L
V
V
V
V
V
1
1
1
1
1
V
V
V
V
V
2
4
4
4
4
4
D 1 1
D 1 1
D 1 1
D 1 1
D
X X X X X
4
4
4
4
4
1 1
D 1
D 1
D 1
D 1
D
L
L
L
L
L
D 1
D 1
D 1
L
L
L
D 1
D
L
L
C
C
C
C
C
1
1
1
1
1
L
L
L
L
L
1
1
1
1
1
1
V
V
V
V
V
D 0 1
D 0 1
D 0 1
D 0 1
D
X X X X X
V
V
V
1
V
V
3
3
3
3
3
3
3
3
0 1
3
3
D 0
D 0
D 0
D 0
D
L
L
L
L
L
D 0
D 0
D 0
D 0
D
L
L
L
L
L
C
C
C
C
C
1
1
1
1
1
D9
D9
D9
D9
D
X X X X X
L
L
L
L
L
1
1
1
1
1
0
V
V
V
V
V
V
V
V
V
V
0
9
2
2
2
2
2
2
2
2
2
2
D9
D9
D 9
L
L
L
D9
D
L
L
D8
D8
D8
D9
D9
D9
D 9
D
L
L
L
L
L
D8
D
X X X X X
C
C
C
C
C
9
L
L
L
L
L
8
9
V
V
V
V
V
V
V
V
V
V
1
1
1
1
1
1
1
1
1
1
D7
D7
D7
X X X X X
D7
D
D8
D8
D8
D 8
D
L
L
L
L
L
D8
D8
D 8
L
L
L
D8
D
L
L
7
C
C
C
C
C
L
L
L
L
L
8
8
V
V
V
V
V
V
V
V
V
V
0
0
0
0
0
0
0
0
0
0
D6
D6
D6
D6
D
M 0 3
M 0 3
M 0 3
M 0 3
M
D7
D7
D7
D 7
D
X X X X X
D7
D7
D 7
X X X X X
D7
D
6
0 3
7
7
D6
D6
D6
D 6
D
X X X X X
D6
D6
D 6
X X X X X
D6
D
D5
D5
D5
D5
D
X X X X X
6
6
5
D5
D5
D5
D 5
D
X X X X X
D5
D5
D5
D 5
D
X X X X X
5
D4
D4
D4
D4
D
M
M
M
M
M
5
4
C
C
C
C
C
D4
D4
D4
D 4
D
R
R
R
R
R
V
V
V
V
V
D4
D4
D4
D 4
D
R
R
R
R
R
L
L
L
L
L
4
4
4
4
4
4
C
C
C
C
C
V
V
V
V
V
4
V
V
V
V
V
4
4
4
4
4
D3
D3
D3
D3
D
M
M
M
M
M
4
4
4
4
4
3
C
C
C
C
C
D3
D3
D 3
R
R
R
D3
D
R
R
D3
D3
D3
D 3
D
R
R
R
R
R
V
V
V
V
V
L
L
L
L
L
3
C
C
C
C
C
3
3
3
3
3
3
V
V
V
V
V
V
V
V
V
V
3
3
3
3
3
3
3
3
3
3
D2
D2
D2
D2
D
M
M
M
M
M
2
D2
D2
D2
D 2
D
R
R
R
R
R
C
C
C
C
C
D2
D2
D2
D 2
D
R
R
R
R
R
L
L
L
L
L
V
V
V
V
V
2
C
C
C
C
C
2
2
2
2
V
V
V
V
V
2
2
V
V
V
V
V
2
2
2
2
2
2
2
2
2
2
D1
D1
D1
D1
D
M
M
M
M
M
D1
D1
D1
D 1
D
R
R
R
R
R
D1
D1
D 1
R
R
R
D1
D
R
R
1
C
C
C
C
C
L
L
L
L
L
1
C
C
C
C
C
1
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
D0
D0
D0
M
M
M
D0
D
M
M
D0
D0
D 0
R
R
R
D0
D
R
R
D0
D0
D0
D 0
D
R
R
R
R
R
0
C
C
C
C
C
L
L
L
L
L
0
C
C
C
C
C
0
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D
D
D
D
D
8
8
8
8
8
D
D
D
D
D
8
8
8
8
8
D
D
D
D
D
0 8 h
0 8 h
0 8 h
0 8
0 8
8
8
8
8
8
8
8
8
8
8
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
8 0
8 0
8 0
8 0
8 0
0
0
0
0
0
0
0
0
0
0
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
a f
8
8
8
8
8
8
8
8
8
8
h
h
h
h
h
h
h
h
h
h
u
u
u
u
u
h
h
u
u
u
u
u
u
u
u
u
u
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l
t l