AK4637 Datasheet, PDF (38/96 Pages) Asahi Kasei Microsystems – 24bit Mono CODEC with MIC - SPK-AMP

[AK4637]
FCK
0 1 2 3 8 9 10 11 12 13 14 15 0 1 2 3 8 9 10 11 12 13 14 15 0 1
BICK(32fs)
SDTO(o)
15 14 13 8 7 6 5 4 3 2 1 0
15
SDTI(i)
15 14 13
76543210
Don’t Care
15
0 1 2 3 15 16 17 18 23 24 30 31 0 1 2 3 15 16 17 18 23 24 30 31 0 1
BICK(64fs)
SDTO(o)
23 22 21
876
0
23
SDTI(i)
Don’t Care
15 14
8
10
24bit: 23:MSB, 0:LSB
16bit: 15: MSB, 0:LSB
Data
1/fs
Figure 31. Mode 1 Timing
Don’t Care
FCK
0 1 2 3 19 20 21 22 23 24 25 31 0 1 2 3 15 16 17 18 23 24 30 31 0 1
BICK(64fs)
SDTO(o)
23 22 21
43210
23
SDTI(i)
23 22 21
43
24bit: 23:MSB, 0:LSB
2 1 0 Don’t Care
Data
1/fs
Figure 32. Mode 2 Timing
Don’t Care
FCK
0 1 2 3 4 9 10 11 12 13 14 15 0 1 2 3 8 9 10 11 12 13 14 15 0 1
BICK(32fs)
SDTO(o)
15 14 13
76543210
SDTI(i)
15 14 13
76543210
Don’t Care
0 1 2 3 4 20 21 22 23 24 25 31 0 1 2 3 15 16 17 18 23 24 30 31 0 1
BICK(64fs)
SDTO(o)
23 22 21
43210
SDTI(i)
23 22 21
4 3 2 1 0 Don’t Care
24bit: 23:MSB, 0:LSB
16bit: 15: MSB, 0:LSB
Data
1/fs
Figure 33. Mode 3 Timing
Don’t Care
015010680-E-00
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2015/09