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AK4636 Datasheet, PDF (15/105 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
[AK4636]
Parameter
Audio Interface Timing
DSP Mode: (Figure 11, Figure 12)
FCK “↑” to BICK “↑” (Note 23)
FCK “↑” to BICK “↓” (Note 24)
BICK “↑” to FCK “↑” (Note 23)
BICK “↓” to FCK “↑” (Note 24)
BICK “↑” to SDTO (BCKP bit = “0”)
BICK “↓” to SDTO (BCKP bit = “1”)
SDTI Hold Time
SDTI Setup Time
Except DSP Mode: (Figure 14)
FCK Edge to BICK “↑” (Note 21)
BICK “↑” to FCK Edge (Note 21)
FCK to SDTO (MSB) (Except I2S mode)
BICK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
EXT Slave Mode (Figure 13)
MCKI Frequency: 256fs
512fs
1024fs
Pulse Width Low
Pulse Width High
FCK Frequency (MCKI = 256fs)
(MCKI = 512fs)
(MCKI = 1024fs)
Duty Cycle
BICK Period
BICK Pulse Width Low
Pulse Width High
Audio Interface Timing (Figure 14)
FCK Edge to BICK “↑” (Note 21)
BICK “↑” to FCK Edge (Note 21)
FCK to SDTO (MSB) (Except I2S mode)
BICK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
Symbol
min
tFCKB
tFCKB
tBFCK
tBFCK
tBSD
tBSD
tSDH
tSDS
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
-
-
50
50
tFCKB
50
tBFCK
50
tFSD
-
tBSD
-
tSDH
50
tSDS
50
fCLK
fCLK
fCLK
tCLKL
tCLKH
fFCK
fFCK
fFCK
duty
tBCK
tBCKL
tBCKH
1.8816
3.7632
7.5264
0.4/fCLK
0.4/fCLK
7.35
7.35
7.35
45
312.5
130
130
tFCKB
50
tBFCK
50
tFSD
-
tBSD
-
tSDH
50
tSDS
50
typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2.048
4.096
8.192
-
-
8
8
8
-
-
-
-
-
-
-
-
-
-
max
Units
-
-
-
-
80
80
-
-
-
-
80
80
-
-
12.288
13.312
13.312
-
-
48
26
13
55
-
-
-
-
-
80
80
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
ns
ns
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
MS1012-E-01
- 15 -
2010/08