[AK4127]
OBICK Frequency
OBIT
0
Mode
Master / Slave
OBIT1
SDTO
OLRCK OBICK
MSB justified,
LSB
I2S
justified
0
1
2
3
4
5
6
7
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
16bit
18bit
20bit
24bit
16bit
18bit
20bit
24bit
≥ 32fso
≥ 36fso
≥ 40fso
≥ 48fso
Slave
CMODE2-0 =
“HLL” or “HHL”
Input
Input
64fso
Master
Except
CMODE2-0 =
“HLL” or “HHL”
Output
Output
64fso
Table 5. Output Audio Interface Format 2 (Output PORT)
OLRCK
0
1
8
9
10 11 12 13 14 15 16 17
20 21 22 23
29 30 31
0
1
8
9
10 11 12 13 14 15 16 17
20 21 22 23
29 30 31 0 1 2
OBICK(64fs)
SDTO(O)
15 14
17 16 15 14
11 10
11 10
11 10
11 10
9
9
9
9
8
8
8
8
2
2
2
2
1
1
1
1
0
0
0
0
15 14
11 10
11 10
11 10
11 10
9
9
9
9
8
8
8
8
2
2
2
2
1
1
1
1
0
0
0
0
15:MSB, 0:LSB
17:MSB, 0:LSB
19:MSB, 0:LSB
17 16 15 14
SDTO(O)
SDTO(O)
SDTO(O)
19 18 17 16 15 14
19 18 17 16 15 14
23 22 21 20 19 18 17 16 15 14
23:MSB, 0:LSB
23 22 21 20 19 18 17 16 15 14
Lch Data
Rch Data
Figure 6. Normal Mode LSB Timing
OLRCK
0
1
2
3
4
13 14 15 16 17 18 19 20 21 22 23 24
31 0
1
2
3
4
13 14 15 16 17 18 19 20 21 22 23 24
31 0
1
2
OBICK(64fs)
SDTO(O)
15 14 13 12
17 16 15 14
19 18 17 16
23 22 21 20
2
1
0
15 14 13 12
17 16 15 14
19 18 17 16
23 22 21 20
2
4
6
1
3
5
0
2
4
8
15 14
17 16
19 18
23 22
15:MSB, 0:LSB
4
3
2
1
0
1
3
7
0
2
6
SDTO(O)
SDTO(O)
SDTO(O)
17:MSB, 0:LSB
6
5
4
3
2
1
5
0
4
1
5
0
4
19:MSB, 0:LSB
10 9
23:MSB, 0:LSB
8
7
6
3
2
1
0
10 9
3 2 1 0
Lch Data
Rch Data
Figure 7. Normal Mode MSB Timing
OLRCK
0
1
2
3
4
14 15 16 17 18 19 20 21 22 23 24
0
1
2
3
4
14 15 16 17 18 19 20 21 22 23 24
31 0 1 2
OBICK(64fs)
SDTO(O)
15 14 13 12
17 16 15 14
19 18 17 16
23 22 21 20
2
1
0
15 14 13 12
17 16 15 14
19 18 17 16
23 22 21 20
2
4
6
1
3
5
0
2
4
8
15
15:MSB, 0:LSB
4
3
2
1
0
1
3
7
0
2
6
17
19
23
SDTO(O)
SDTO(O)
SDTO(O)
17:MSB, 0:LSB
6
5
4
3
2
1
5
0
4
1
5
0
4
19:MSB, 0:LSB
10 9
23:MSB, 0:LSB
8
7
6
3
2
1
0
10 9
3 2 1 0
Lch Data
Rch Data
Figure 8. Normal Mode I2S Compatible Timing
MS0593-E-01
2007/07
- 16 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
