ak4126 AKM Semiconductor, Inc., ak4126 Datasheet - Page 15

• Manufacturer Part Number: ak4126
• Description: 6ch 192khz / 24-bit Asynchronous Src
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Note: SDTI shows SDTI1, SDTI2 and SDTI3.
The output port works in slave mode. The clocks supply OLRCK and OBICK externally. The ODIF1-0 pins and OBIT1-0
pins select the audio interface format for the output port. The audio data is MSB first, 2’s complement format. The SDTO
is clocked out on the falling edge of OBICK. Select the audio interface format when PDN pin = “L”. The audio interface
format of SDTO1, SDTO2 and SDTO3 becomes the same setting. The maximum input frequency of OBICK is 64fso.
MS0544-E-00
OLRCK
OBICK(64fs)
SDTO(O)
SDTO(O)
SDTO(O)
SDTO(O)
System Clock & Audio Interface Format for Output PORT
ILRCK
IBICK(64fs)
SDTI(i)
0 1
15:MSB, 0:LSB
17:MSB, 0:LSB
19:MSB, 0:LSB
23:MSB, 0:LSB
8 9
23 22
Mode
10
0
1
2
3
21 20
11
0 1 2
23:MSB, 0:LSB
12 13 14
19 18
19 18
Don't Care
OBIT1
Table 3. Output Audio Interface Format 1 (Output PORT)
Table 4. Output Audio Interface Format 2 (Output PORT)
17 16
17 16
17 16
H
H
L
L
15
Lch Data
Mode
16 17
15 14
15 14
15 14
15 14
0
1
2
3
8 9
OBIT0
23
Lch Data
20 21 22
H
H
L
L
ODIF1
11
11
11
11
10 9 8
10 9 8
10 9 8
10 9 8
Figure 6. Mode 4 Timing
H
H
L
L
Figure 7. LSB Timing
23
8
24
SDTO
16bit
18bit
20bit
24bit
ODIF0
29
- 15 -
2 1 0
2 1 0
2 1 0
2 1 0
H
H
L
L
30
31
1
31 0 1 2
0
MSB justified, I
0
1
I
SDTO Format
MSB justified
LSB justified
2
≥ 32fso
≥ 36fso
≥ 40fso
≥ 48fso
Don't Care
S Compatible
(Reserved)
8 9 10
OBICK Frequency
23 22
21 20
11
12 13 14
2
19 18
19 18
S
8 9
23
Rch Data
17 16
17 16
17 16
LSB justified
15
Rch Data
16 17
15 14
15 14
15 14
15
64fso
14
8
24
20 21 22
11
11
11 10
11 10 9
10 9
10 9
9
1 0
23
31
8
8
8
8
0
29
1
2
2
2
2
[AK4126]
30
1
1
1
1
2006/09
31
0
0
0
0
0 1 2