AK4122A AKM [Asahi Kasei Microsystems], AK4122A Datasheet - Page 21

• Manufacturer Part Number: AK4122A
• Description: 24-Bit 96kHz SRC with DIR
• Manufacturer: AKM [Asahi Kasei Microsystems]

(3) PORT3
Two kinds of data formats are available and are selected by setting the ODIF bit
is in MSB first, 2’s compliment format. The SDTO is clocked out on the falling edge of BICK. The audio interface
supports both master and slave modes. In master mode, BICK output is fixed to 64fs and LRCK output is fixed to 1fs.
MS1076-E-01
LRCK
BICK(64fs)
LRCK
BICK(64fs)
SDTO(o)
LRCK
BICK(64fs)
SDTO(o)
LRCK
BICK(64fs)
SDTIO(o)
SDTIO(i)
SDTIO(o)
SDTIO(i)
Mode
0
1
0
0 1
0
0
23 22 21
23 22
SDTO-23:MSB, 0:LSB
23:MSB, 0:LSB
ODIF
1 2
1 2
1 2
Don't Care
23 22
23 22
23 22
23:MSB, 0:LSB
23:MSB, 0:LSB
0
1
2 3
Table 10. Audio Interface Format for PORT3
3
3
24bit, MSB justified
24bit, I
16
8 9
15
23
Lch Data
Lch Data
4
4 3 2 1
4
7
Output Format
21
21
17
Figure 10. Mode 0 Timing
Figure 11. Mode 1 Timing
Lch Data
Figure 8. Mode 2 Timing
Figure 9. Mode 3 Timing
Lch Data
3 2 1
3 2 1
6 5 4 3
22 23
22 23
18
2
S Compatible
19 20
0
8
24
24
24
0
0
0
25
25
- 21 -
Don't Care
1
31 0 1 2
31 0 1 2 3
0
0 1 2
0 1 2
23 22
23 22 21
LRCK
Don't Care
23 22
23 22
23 22
H/L
L/H
16 15
BICK
≥ 48fs
≥ 48fs
8 9
4
4
23
4
Rch Data
(Table
Rch Data
7 6 5 4 3
21
21
17
Rch Data
Rch Data
3
3
3
22
22
18 19 20
2
2
2
23
23
(default)
10). In both modes, the serial data
1
1
1
0
8
24
24
24
0
0
0
25
25
Don't Care
1 0
31
31
0
0
0
0
23
23
1
1
1
1
[AK4122A]
2010/05