AK4126 Datasheet, PDF (15/27 Pages) Asahi Kasei Microsystems – 6ch 192kHz / 24-Bit Asynchronous SRC

ASAHI KASEI
[AK4126]
ILRCK
012
IBICK(64fs)
89
24
31 0 1 2
89
24
SDTI(i)
Don't Care 23
8
23:MSB, 0:LSB
1 0 Don't Care 23
8
Lch Data
Figure 6. Mode 4 Timing
Rch Data
Note: SDTI shows SDTI1, SDTI2 and SDTI3.
31 0 1
10
„ System Clock & Audio Interface Format for Output PORT
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.
Mode
0
1
2
3
ODIF1
L
L
H
H
ODIF0
L
H
L
H
SDTO Format
LSB justified
(Reserved)
MSB justified
I²S Compatible
Table 3. Output Audio Interface Format 1 (Output PORT)
Mode OBIT1
0
L
1
L
2
H
3
H
OBIT0
L
H
L
H
SDTO
16bit
18bit
20bit
24bit
OBICK Frequency
MSB justified, I²S LSB justified
≥ 32fso
≥ 36fso
≥ 40fso
64fso
≥ 48fso
Table 4. Output Audio Interface Format 2 (Output PORT)
OLRCK
01
OBICK(64fs)
SDTO(O)
SDTO(O)
SDTO(O)
SDTO(O)
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
15 14
15:MSB, 0:LSB
17 16 15 14
17:MSB, 0:LSB
19 18 17 16 15 14
19:MSB, 0:LSB
23 22 21 20 19 18 17 16 15 14
23:MSB, 0:LSB
Lch Data
11 10 9 8
11 10 9 8
11 10 9 8
11 10 9 8
210
210
210
210
15 14
17 16 15 14
19 18 17 16 15 14
23 22 21 20 19 18 17 16 15 14
Figure 7. LSB Timing
Rch Data
11 10 9 8
11 10 9 8
11 10 9 8
11 10 9 8
210
210
210
210
MS0544-E-00
- 15 -
2006/09