AD1885JST-REEL Analog Devices Inc, AD1885JST-REEL Datasheet - Page 19

• Manufacturer Part Number: AD1885JST-REEL
• Description: IC CODEC STEREO 16BIT 48LQFP TR
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1885JST-REEL

• 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

Extended Audio Status and Control Register (Index 2Ah)
Note: The Extended Audio Status and Control Register is a read/write register that provides status and control of the extended audio
features.
VRA
PCM DAC Rate Register (Index 2Ch)
Note: 2Ch is an alias for 7Ah. The VRA bit in register 2Ah must be set for the alias to work; if a zero is written to VRA, both sample
rates are reset to 48 kHz.
SR[15:0]
PCM ADC Rate Register (Index 32h)
Note: 32h is an alias for 78h. The VRA bit in register 2Ah must be set for the alias to work; if a zero is written to VRA, both sample
rates are reset to 48 kHz.
SR[15:0]
Jack Sense/Audio Interrupt/Status Register (Index 72h)
Note: all register bits are read/write except for AUDINT, JSINT, JS0 and JS1, which are read only.
JSINT
JS0
JS1
AUDINT
JS0MODE
JS1MODE
JS0CLR
JS1CLR
JS0DIS
JS1DIS
R g
R g
R g
R g
R
N m
N m
N m
N m
N
2 h
2 h
2 h
2 h
2
R g
R g
R g
R g
R
N m
N m
N m
N m
N
2
2
2
2
2
R g
R g
R g
R g
R
N m
N m
N m
N m
N
2 3
2 3
2 3
2 3
2 3
R g
R g
R g
R g
R
N m
N m
N m
N m
N
2 7 h
2 7 h
2 7 h
2 7 h
2 7
A
A
A
A
A
C
C
C
C
C
e
e
e
e
e
u
u
u
e
e
e
e
e
u
u
u
e
e
e
e
e
u
u
u
e
e
e
e
e
u
u
u
u
u
u
u
u
u
u
u
h
h
h
h
h
h
g
m
g
h
g
/ h
/ h
/ h
/ h
/ h
g
m
m
m
( /
( /
( /
( /
( /
7 (
7 (
7 (
7 (
7 (
8 7
8 7
8 7
8 7
8 7
N
N
N
a J
a J
a J
n I
n I
n I
A
A
A
N
N
a J
a J
n I
n I
N
N
N
E
E
E
A
A
N
N
E
E
) h
) h
) h
) h
) h
a
a
a
a
a
) h
) h
) h
) h
) h
c
c
c
c
c
a
a
a
a
a
x
x
x
x
x
e t
e t
e t
e t
e t
m
m
m
m
m
k
k
k
k
k
e t
e t
e t
m
m
m
m
m
e t
e t
r r
r r
r r
r r
r r
e
e
e
e
e
S
S
S
S
S
n
n
n
n
n
e
e
e
e
e
u
u
u
u
u
N
N
N
N
N
P
P
P
P
P
N
N
N
N
N
P
P
P
P
P
e
e
e
e
e
d
d
d
d
d
n
n
n
n
n
t p
t p
t p
t p
t p
C
C
C
C
C
C
C
C
C
C
e
e
e
a
a
a
a
a
a
a
a
a
a
e
e
s
s
s
s
s
d
d
d
d
d
m
m
m
m
m
m
m
m
m
m
S /
S /
S /
S /
S /
/ e
/ e
/ e
/ e
/ e
M
M
M
M
M
M
M
M
M
M
A
A
A
A
A
a t
a t
a t
A
A
A
A
A
a t
a t
e
e
e
e
e
e
e
e
e
e
D
D
D
D
D
A
A
A
A
A
u
u
u
u
u
u
u
u
u
u
u t
u t
u t
u t
u t
Writing to this register allows programming of the sampling frequency from 7040 Hz (1B80h) to 48 kHz (BB80h)
Variable Rate Audio. VRA = 1 enables support for Variable Rate Audio mode (sample rate control registers and
SLOTREQ signaling).
in 1 Hz increments. Programming a value outside of the range 7040 Hz (1b80h) to 48000 Hz (BB80h) causes the
codec to saturate. For all rates, if the value written to the register is supported, that value will be echoed back
when read; otherwise, the closest rate supported is returned.
d
d
d
d
d
Writing to this register allows programming of the sampling frequency from 7040 Hz (1B80h) to 48 kHz (BB80h)
in 1 Hz increments. Programming a value outside of the range 7040 Hz (1b80h) to 48000 Hz (BB80h) causes the
codec to saturate. For all rates, if the value written to the register is supported, that value will be echoed back
when read, otherwise the closest rate supported is returned.
D
D
D
d
d
d
d
d
D
D
A
A
A
A
A
s
s
s
s
s
o i
o i
o i
o i
o i
o i
o i
o i
o i
o i
C
C
C
C
C
C
C
C
C
C
Indicates that a jack sense interrupt has been generated by JS0 or JS1. Remains set until all JS enabled interrupts
are cleared.
Indicates Pin JS0 state.
Indicates Pin JS1 state.
Indicates the Codec has generated audio interrupt. Remains set until software clears all pending interrupts.
Sets JS0 pin input mode, 1 = Interrupt 0 = Jack Sense.
Sets JS1 pin input mode, 1 = Interrupt 0 = Jack Sense.
This bit is set by the Codec when there is a pending JS0 interrupt. Software must clear this bit to clear the JS0
interrupt status bit.
This bit is set by the Codec when there is a pending JS1 interrupt. Software must clear this bit to clear the JS1
interrupt status bit.
If the JS0DIS bit is set, the Codec ignores Jack Sense pin JS0.
If the JS1DIS bit is set, the Codec ignores Jack Sense pin JS1.
S
S
S
S
S
R
R
R
R
R
R
R
R
R
R
D 5 1
D 5 1
D 5 1
J
J
J
F
F
F
D 5 1
D
J
J
F
F
/ t
/ t
/ t
S
S
S
S
S
/ t
/ t
a
a
a
a
a
a
a
a
a
a
U
U
U
U
U
5 1
_ 1
_ 1
_ 1
_ 1
_ 1
C
C
C
C
C
e t
e t
e t
e t
e t
e t
e t
e t
e t
e t
N
N
N
N
N
t
t
t
t
t
O
O
O
O
O
C
C
C
C
C
l r
l r
l r
l r
l r
U
U
U
U
U
T
T
T
T
T
D 5 1
D 5 1
D 5 1
D 5 1
D
S
S
S
S
S
D 5 1
D 5 1
D 5 1
D 5 1
D
S
S
S
S
S
/ T
/ T
/ T
/ T
/ T
R
R
R
R
R
R
R
R
R
R
5 1
5 1
D 5 1
D 5 1
D 5 1
D 5 1
D
X X X X X
5 1
5 1
5 1
5 1
5 1
5 1
5 1
5 1
5 1
5 1
D 4 1
D 4 1
D 4 1
D 4 1
D
J
J
J
J
J
O T
O T
O T
O T
O
5 1
S
S
S
S
S
U
U
U
4 1
U
U
_ 0
_ 0
_ 0
_ 0
_ 0
D 4 1
D 4 1
D 4 1
D 4 1
D
S
S
S
S
S
D 4 1
D 4 1
D 4 1
D 4 1
D
S
S
S
S
S
T
R
R
R
R
R
R
R
R
R
R
4 1
4 1
D 4 1
D 4 1
D 4 1
D 4 1
D
X X X X X
4 1
4 1
4 1
4 1
4 1
4 1
4 1
4 1
4 1
4 1
D 3 1
D 3 1
D 3 1
D 3 1
D
J 1
J 1
J 1
J 1
J
P
P
P
P
P
4 1
S
S
S
S
S
U
U
U
U
U
3 1
1
D
D
D
D
D
D 3 1
D 3 1
D 3 1
S
S
S
D 3 1
D 3 1
D 3 1
S
S
S
D 3 1
D
S
S
D 3 1
D
S
S
R
R
R
R
R
R
R
R
R
R
I
I
I
I
I
D 3 1
D 3 1
D 3 1
D 3 1
D
X X X X X
3 1
3 1
S
S
S
S
S
3 1
3 1
3 1
3 1
3 1
3 1
3 1
3 1
3 1
3 1
3 1
D 2 1
D 2 1
D 2 1
D 2 1
D
J 0
J 0
J 0
J 0
J
P
P
P
P
P
S
S
S
S
S
U
U
U
U
U
2 1
D 2 1
D 2 1
D 2 1
D 2 1
D
S
S
S
S
S
D 2 1
D 2 1
D 2 1
D 2 1
D
S
S
S
S
S
0
D
D
D
D 2 1
D 2 1
D 2 1
D 2 1
D
X X X X X
D
D
R
R
R
R
R
R
R
R
R
R
2 1
2 1
I
I
I
I
I
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
S
S
S
S
S
D 1 1
D 1 1
D 1 1
J 1
J 1
J 1
OE
OE
OE
D 1 1
D
J 1
J
OE
O
S
S
S
S
S
D 1 1
D 1 1
D 1 1
D 1 1
D
S
S
S
S
S
D 1 1
D 1 1
D 1 1
D 1 1
D
S
S
S
S
S
D 1 1
D 1 1
D 1 1
X X X X X
D 1 1
D
1 1
E
1
R
R
R
R
R
R
R
R
R
R
1 1
1 1
1 1
_ _ _ _ _
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
D 0 1
D 0 1
D 0 1
D 0 1
D
J 0
J 0
J 0
J 0
J
OE
OE
OE
OE
O
S
S
S
S
S
0 1
E
D 0 1
D 0 1
D 0 1
D 0 1
D
X X X X X
0
D 0 1
D 0 1
D 0 1
D 0 1
D
S
S
S
S
S
D 0 1
D 0 1
D 0 1
D 0 1
D
S
S
S
S
S
_ _ _ _ _
R
R
R
R
R
R
R
R
R
R
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
D9
D9
D9
D
D9
J 1
J 1
J 1
J 1
J
D S
D S
D S
D S
D
S
S
S
S
S
9
I
I
I
I
I
1
S
D9
D9
D9
D9
D
X X X X X
D9
D9
D9
D
D9
S 9
S 9
S 9
S 9
S
D9
D9
D9
D9
D
S 9
S 9
S 9
S 9
S
9
R
R
R
R
R
R
R
R
R
R
9
9
D8
D8
D8
D
D8
J 0
J 0
J 0
J 0
J
D S
D S
D S
D S
D
9
9
S
S
S
S
S
I
I
I
8
I
I
0
S
D8
D8
D8
X X X X X
D8
D
D8
D8
D8
S 8
S 8
S 8
D8
D8
D8
S 8
S 8
S 8
D8
D
S 8
S
D8
D
S 8
S
8
R
R
R
R
R
R
R
R
R
R
D7
D7
D7
J 1
J 1
J 1
C R
C R
C R
D7
D
J 1
J
C R
C
8
8
S
S
S
S
S
8
8
L
L
L
7
L
L
1
R
D7
D7
D7
D7
D
X X X X X
D7
D7
D7
D
D7
S 7
S 7
S 7
S 7
S
D7
D7
D7
D7
D
S 7
S 7
S 7
S 7
S
7
R
R
R
R
R
R
R
R
R
R
D6
D6
D6
J 0
J 0
J 0
C R
C R
C R
D6
D
J 0
J
C R
C
7
7
S
S
S
S
S
7
7
L
L
L
6
L
L
0
R
D6
D6
D6
D6
D
X X X X X
D6
D6
D6
D
D6
S 6
S 6
S 6
S 6
S
D6
D6
D6
D6
D
S 6
S 6
S 6
S 6
S
6
R
R
R
R
R
R
R
R
R
R
D5
D5
D5
J 1
J 1
J 1
M
M
M
D5
D
J 1
J
M
M
6
6
S
S
S
S
S
6
6
5
O
O
O
O
O
1
D5
D5
D5
X X X X X
D5
D
D
D
D
D
D
D5
D5
D5
S 5
S 5
S 5
D5
D5
D5
S 5
S 5
S 5
D5
D
S 5
S
D5
D
S 5
S
5
E
E
E
E
E
R
R
R
R
R
R
R
R
R
R
5
5
5
5
D4
D4
D4
D
D4
J 0
J 0
J 0
J 0
J
M
M
M
M
M
D4
D4
D4
D4
D
X X X X X
S
S
S
S
S
4
D4
D4
D4
D
D4
S 4
S 4
S 4
S 4
S
D4
D4
D4
D4
D
S 4
S 4
S 4
S 4
S
0
O
O
O
O
O
4
R
R
R
R
R
R
R
R
R
R
D
D
D
4
4
D
D
4
4
E
E
E
E
E
D3
D3
D3
D3
D
X X X X X
D3
D3
D3
D
D3
S 3
S 3
S 3
S 3
S
D3
D3
D3
D3
D
S 3
S 3
S 3
S 3
S
D3
D3
D3
D
D3
A D
A D
A D
A D
A
I T
I T
I T
I T
I
3
R
R
R
R
R
R
R
R
R
R
N
N
N
N
N
3
3
U
U
U
U
U
3
3
3
T
D
D2
D2
D2
X X X X X
D2
D
D2
D2
D2
S 2
S 2
S 2
D2
D2
D2
S 2
S 2
S 2
D2
D
S 2
S
D2
D
S 2
S
2
R
R
R
R
R
R
D2
D2
D2
J 1
J 1
J 1
R
R
R
R
D2
D
J 1
J
2
2
S
S
S
S
S
2
2
2
1
D1
D1
D1
D1
D
X X X X X
D1
D1
D1
D
D1
S 1
S 1
S 1
S 1
S
D1
D1
D1
D1
D
S 1
S 1
S 1
S 1
S
D1
D1
D1
D
D1
J 0
J 0
J 0
J 0
J
1
S
S
S
S
S
R
R
R
R
R
R
R
R
R
R
1
1
1
0
1
1
AD1885
D0
D0
D0
D0
D
V A
V A
V A
V A
V
D0
D0
D0
JS
JS
JS
I T
I T
I T
D0
D
JS
J
I T
I
S
N
N
N
N
N
D0
D0
D0
D
D0
S 0
S 0
S 0
S 0
S
D0
D0
D0
D0
D
S 0
S 0
S 0
S 0
S
R
R
R
R
R
0
0
R
R
R
R
R
R
R
R
R
R
T
0
0
A
0
0
D
D
D
D
D
0 0 h
0 0 h
0 0 h
0 0
0 0
D
D
D
B
B
B
D
D
D
B
B
B
D
D
B
B
D
D
B
B
D
D
D
0 0 h
0 0 h
0 0
D
D
0 0 h
0 0
e
e
e
e
e
B
B
B
B
B
B
B
B
B
B
0 0
0 0
0 0
0 0
0 0
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
a f
a f
a f
a f
a f
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
0 8
0 8
0 8
0 8
0 8
0 8
0 8
0 8
0 8
0 8
a f
a f
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
u
u
u
u
u
h
h
h
h
h
h
h
h
h
h
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