AD1885JST Analog Devices Inc, AD1885JST Datasheet - Page 15

• Manufacturer Part Number: AD1885JST
• Description: IC AUDIO CODEC AC'97 48-LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1885JST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 87 / 90
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.15 V ~ 3.45 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

Video Volume (Index 14h)
RVV[4:0]
LVV[4:0]
VM
AUX Volume (Index 16h)
RAV[4:0]
LAV[4:0]
AM
PCM Out Volume (Index 18h)
ROV[4:0]
LOV[4:0]
OM
R g
R g
R g
R g
R
N m
N m
N m
N m
N
4 1 h
4 1 h
4 1 h
4 1 h
4 1
R g
R g
R g
R g
R
N m
N m
N m
N m
N
6 1 h
6 1 h
6 1 h
6 1 h
6 1
R g
R g
R g
R g
R
N m
N m
N m
N m
N
8 1 h
8 1 h
8 1 h
8 1 h
8 1
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
h
h
g
g
g
m
m
m
N
N
N
N
N
V
V
V
V
V
N
N
N
N
N
A
A
A
A
A
N
N
N
N
N
P
P
P
P
P
V
V
V
V
V
d i
d i
d i
d i
d i
u
u
u
C
C
C
C
C
o
o
o
o
o
a
a
a
a
a
a
a
a
a
a
u
u
a
a
a
a
a
m
m
m
m
m
m
m
m
m
u l
u l
u l
u l
u l
m
m
m
m
x
x
x
x
x
m
m
M
M
M
M
M
e
e
e
e
e
o
o
o
o
o
V
V
V
m
m
m
m
m
e
e
e
e
e
e
V
V
e
e
e
e
e
e
e
e
e
O
O
O
O
O
o
o
o
V
V
V
o
o
V
V
e
e
e
e
e
u l
u l
u l
u l
u l
t u
t u
t u
t u
t u
o
o
o
o
o
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
Right Video Volume. Allows setting the Video 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 Video Volume. Allows setting the Video 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.
Video Mute. When this bit is set to “1,” the channel is muted.
Right Aux Volume. Allows setting the Aux 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 Aux Volume. Allows setting the Aux 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.
Aux Mute. When this bit is set to “1,” the channel is muted.
Right PCM Out Volume. Allows setting the PCM 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 PCM Out Volume. Allows setting the PCM 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.
PCM Out Volume Mute. When this bit is set to “1,” the channel is muted.
e
e
e
e
e
D 5 1
D 5 1
D 5 1
D 5 1
D
AM
AM
AM
AM
A
D 5 1
D 5 1
D 5 1
D 5 1
D
OM
OM
OM
OM
O
D 5 1
D 5 1
D 5 1
D 5 1
D
VM
VM
VM
VM
V
M
5 1
5 1
M
M
5 1
D 4 1
D 4 1
D 4 1
D 4 1
D
X X X X X
D 4 1
D 4 1
D 4 1
D 4 1
D
X X X X X
D 4 1
D 4 1
D 4 1
D 4 1
D
X X X X X
4 1
4 1
4 1
D 3 1
D 3 1
D 3 1
X X X X X
D 3 1
D 3 1
D 3 1
X X X X X
D 3 1
D
D 3 1
D
D 3 1
D 3 1
D 3 1
X X X X X
D 3 1
D
3 1
3 1
3 1
D 2 1
D 2 1
D 2 1
D 2 1
D
L
L
L
L
L
D 2 1
D 2 1
D 2 1
D 2 1
D
L
L
L
L
L
D 2 1
D 2 1
D 2 1
D 2 1
D
L
L
L
L
L
A
A
A
O
O
O
A
A
O
O
2 1
2 1
V
V
V
V
V
V
V
V
V
V
2 1
V
V
V
V
V
V
V
V
V
V
4
4
4
4
4
4
4
4
4
4
xM
0
0
0
1
4
4
4
4
4
D 1 1
D 1 1
D 1 1
D 1 1
D
L
L
L
L
L
D 1 1
D 1 1
D 1 1
D 1 1
D
L
L
L
L
L
D 1 1
D 1 1
D 1 1
D 1 1
D
L
L
L
L
L
A
A
A
A
A
O
O
O
O
O
1 1
1 1
V
V
V
V
V
1 1
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
D 0 1
D 0 1
D 0 1
D 0 1
D
L
L
L
L
L
D 0 1
D 0 1
D 0 1
D 0 1
D
L
L
L
L
L
D 0 1
D 0 1
D 0 1
D 0 1
D
L
L
L
L
L
A
A
A
A
A
O
O
O
O
O
0 1
0 1
V
V
V
V
V
0 1
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
x4 . . . x0
00000
01000
11111
xxxxx
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
D9
D9
D9
D9
D
L
L
L
L
L
D9
D9
D9
D9
D
L
L
L
L
L
D9
D9
D9
D9
D
L
L
L
L
L
Volume Table
A
A
A
A
A
O
O
O
O
O
V
V
V
V
V
9
9
9
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
D8
D8
D8
L
L
L
D8
D8
D8
L
L
L
D8
D8
D8
L
L
L
D8
D
L
L
D8
D
L
L
D8
D
L
L
V
V
V
V
V
A
A
A
A
A
O
O
O
O
O
8
8
8
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
D7
D7
D7
D7
D
D7
D7
D7
D7
D
D7
D7
D7
D7
D
X X X X X
X X X X X
X X X X X
7
7
7
Function
+12 dB Gain
0 dB Gain
–34.5 dB Gain
–∞ dB Gain
D6
D6
D6
D6
D
X X X X X
D6
D6
D6
D6
D
X X X X X
D6
D6
D6
D6
D
X X X X X
6
6
6
D5
D5
D5
X X X X X
D5
D
D5
D5
D5
D5
D
X X X X X
D5
D5
D5
D5
D
X X X X X
5
5
5
D4
D4
D4
D4
D
R
R
R
R
R
D4
D4
D4
D4
D
R
R
R
R
R
D4
D4
D4
D4
D
R
R
R
R
R
V
V
V
V
V
4
A
A
A
O
O
O
A
A
O
O
4
4
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
D3
D3
D3
D3
D
R
R
R
R
R
D3
D3
D3
R
R
R
D3
D3
D3
R
R
R
D3
D
R
R
D3
D
R
R
V
V
V
V
V
3
A
A
A
A
A
O
O
O
O
O
3
3
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
D2
D2
D2
D2
D
R
R
R
R
R
D2
D2
D2
D2
D
R
R
R
R
R
D2
D2
D2
D2
D
R
R
R
R
R
V
V
V
V
V
2
A
A
A
O
O
O
A
A
O
O
2
2
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
D1
D1
D1
D1
D
R
R
R
R
R
D1
D1
D1
D1
D
R
R
R
R
R
D1
D1
D1
D1
D
R
R
R
R
R
V
V
V
V
V
1
A
A
A
A
A
O
O
O
O
O
1
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
AD1885
D0
D0
D0
R
R
R
D0
D
R
R
D0
D0
D0
D0
D
R
R
R
R
R
D0
D0
D0
D0
D
R
R
R
R
R
V
V
V
V
V
0
A
A
A
A
A
O
O
O
O
O
0
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 h
8 8 h
8 8 h
8 8
8 8
D
D
D
D
D
8 8 h
8 8 h
8 8 h
8 8
8 8
D
D
D
D
D
8 8 h
8 8 h
8 8 h
8 8
8 8
e
e
e
e
e
e
e
e
e
e
e
8 0
8 0
8 0
8 0
8 0
e
e
e
e
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 0
8 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
h
h
h
h
h
h
u
u
u
u
u
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