AK4637 Datasheet, PDF (17/96 Pages) Asahi Kasei Microsystems – 24bit Mono CODEC with MIC - SPK-AMP

[AK4637]
Parameter
External Slave Mode
MCKI Input Timing
Frequency CM1-0 bits = “00”
CM1-0 bits = “01”
CM1-0 bits = “10”
CM1-0 bits = “11”
Pulse Width Low
Pulse Width High
FCK Input Timing
Frequency CM1-0 bits = “00”
CM1-0 bits = “01”
CM1-0 bits = “10”
CM1-0 bits = “11”
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Input Timing
Frequency
Pulse Width Low
Pulse Width High
External Master Mode
MCKI Input Timing
Frequency 256fs
384fs
512fs
1024fs
Pulse Width Low
Pulse Width High
FCK Output Timing
Frequency CM1-0 bits = “00”
CM1-0 bits = “01”
CM1-0 bits = “10”
CM1-0 bits = “11”
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Output Timing
Frequency BCKO1-0 bit = “00”
BCKO1-0 bit = “01”
BCKO1-0 bit = “10”
Duty Cycle
Symbol
fCLK
fCLK
fCLK
fCLK
tCLKL
tCLKH
fs
fs
fs
fs
tFCKH
Duty
fBCK
tBCKL
tBCKH
fCLK
fCLK
fCLK
fCLK
tCLKL
tCLKH
fs
fs
fs
fs
tFCKH
Duty
fBCK
fBCK
fBCK
dBCK
Min.
Typ.
Max. Unit
-
-
-
0.4/fCLK
0.4/fCLK
8
8
8
8
1/fBCK60
45
16fs
130
130
256fs
384fs
512fs
1024fs
-
-
-
Hz
-
Hz
Hz
-
Hz
-
s
-
s
-
48
kHz
-
48
kHz
-
48
kHz
-
24
kHz
-
1/fs1/fBCK ns
-
55
%
-
64fs
Hz
-
-
ns
-
-
ns
2.048
3.072
4.096
8.192
0.4/fCLK
0.4/fCLK
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
fCLK/256
fCLK/384
fCLK/512
fCLK/1024
1/fBCK
50
16fs
32fs
64fs
50
12.288
18.432
24.576
24.576
-
-
-
-
-
-
-
-
-
-
-
-
MHz
MHz
MHz
MHz
s
s
Hz
Hz
Hz
Hz
ns
%
Hz
Hz
Hz
%
015010680-E-00
- 17 -
2015/09