
REV. 0
AD1886A
–22–
Sample Rate 0 (Index 78h)
e
e
e
e
R g
e
u
u
u
u
N m
u
8
2
h
7
h
3
(
m
a
S
e
m
a
N
1
D 5
1
D 4
1
D 3
1
D 2
D 1
1
D 0
D9
D8
D7
D6
D5
D4
3
D
D2
D1
D0
t
u
a
f
D
0
e
a
R
e
p
5
1
0
R
S
4
1
0
R
S
3
1
0
R
S
2
1
0
R
S
1
1
0
R
S
0
1
0
R
S
9
0
R
S
8
0
R
S
7
0
R
S
6
0
R
S
5
0
R
S
4
0
R
S
3
0
R
S
2
0
R
S
1
0
R
S
0
0
R
S
h
0
8
B
B
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 then both
sample rates are reset to 48 kHz.
SR0[15:0]
Writing to this register allows the user to program the sampling frequency from 7 kHz (1B58h) to 48 kHz (BB80h)
in 1 Hertz increments. Programming a value greater than 48 kHz or less than 7 kHz may cause unpredictable results.
Sample Rate 1 (Index 7Ah)
e
e
e
R g
e
e
u
u
N m
u
u
u
C
h
A
7
h
2
(
e
R
e
1
a
p
m
a
S
R
5
1
1
S
R
4
1
1
S
R
3
1
1
S
R
2
1
1
S
1
R
1
1
S
1
R
0
1
S
R
S
e
m
a
N
1
D 5
1
D 4
1
D 3
1
D 2
D 1
1
D 0
D9
D8
D7
D6
D5
D4
3
D
D2
D1
D0
t
u
a
f
D
9
1
8
1
R
S
7
1
R
S
6
1
R
S
5
1
R
S
4
1
R
S
3
1
R
S
2
1
R
S
1
1
R
S
0
1
R
S
h
0
8
B
B
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 then both
sample rates are reset to 48 kHz.
SR1[15:0]
Writing to this register allows the user to program the sampling frequency from 7 kHz (1B58h) to 48 kHz (BB80h) in
1 Hertz increments. Programming a value greater than 48 kHz or less than 7 kHz may cause unpredictable results.
Vendor ID1 Register (Index 7Ch)
u
u
u
u
N m
u
e
R g
e
m
a
N
1
D 5
1
D 4
1
D 3
1
D 2
D 1
1
D 0
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
t
u
a
f
D
7C
7 h
1
1
D
I
r
r
o
d
n
e
V
F7
F6
F5
F4
F3
F2
F1
F0
S7
S
S6
S
S5
S
S4
S
S3
S
S2
S
S1
S
S0
S
h
4
4
1
4
S[7:0]
F[7:0]
This register is ASCII encoded to ‘A.’
This register is ASCII encoded to ‘D.’
Vendor ID2 Register (Index 7Eh)
u
u
u
N m
u
u
e
R g
e
m
a
N
1
D 5
1
D 4
1
D 3
1
D 2
D 1
1
D 0
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
t
u
a
f
D
E
7 h
2
D
I
r
o
d
n
e
V
T7
T6
T5
T4
T3
T2
T1
T0
7
V
E
R
6
V
E
R
5
V
E
R
4
V
E
R
3
V
E
R
2
V
E
R
1
V
E
R
0
V
E
R
h
3
6
3
5
T[7:0]
This register is ASCII encoded to ‘S.’