AK4121A_10 Datasheet, PDF (10/20 Pages) Asahi Kasei Microsystems – Asynchronous Sample Rate Converter

[AK4121A]
LRCK
BICK
(64fs)
SDTI
16bit
SDTI
20bit
01
12 13 14 15 16
31 0 1
12 13 14 15 16
31 0 1
Don’t care
15:MSB, 0:LSB
15
0 Don’t care
15
0
Don’t care 19 18 17 16 15
0 Don’t care 19 18 17 16 15
0
19:MSB, 0:LSB
Lch Data
Rch Data
Figure 5. 16bit/20bit LSB justified Timing
LRCK
BICK
(64fs)
SDTI
01
2
18 19 20
30 31 0 1 2
18 19 20
30 31 0 1
19 18
1 0 Don’t care
19 18
1 0 Don’t care
20:MSB, 0:LSB
Lch Data
Rch Data
Figure 6. 20bit MSB justified Timing
19 18
LRCK
BICK
(64fs)
SDTI
0123
19 20 21
31 0 1 2 3
19 20 21
31 0 1
19 18
1 0 Don’t care
19 18
1 0 Don’t care
19
19:MSB, 0:LSB
Lch Data
Figure 7. 20bit I²S Timing
Rch Data
MS0337-E-06
- 10 -
2010/04