[AK4679]
Parameter
Symbol
min
typ
max
Unit
External Slave Mode
MCKI Input Timing
Frequency
256fs
512fs
1024fs
fCLK
fCLK
fCLK
tCLKL
tCLKH
2.048
4.096
8.192
0.4/fCLK
0.4/fCLK
-
-
-
-
-
12.288
12.288
12.288
MHz
MHz
MHz
ns
Pulse Width Low
Pulse Width High
-
-
ns
LRCK Input Timing
Frequency
256fs
512fs
1024fs
fs
fs
fs
8
8
-
-
-
-
-
48
24
kHz
kHz
kHz
ns
8
tBCK−60
45
12
1/fs − tBCK
55
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Input Timing
tLRCKH
Duty
%
312.5 or
1/(126fs)
130
ns
s
ns
ns
Period (Note 52)
tBCK
-
-
Pulse Width Low
Pulse Width High
tBCKL
tBCKH
-
-
-
-
130
External Master Mode
MCKI Input Timing
Frequency
256fs
512fs
1024fs
fCLK
fCLK
fCLK
tCLKL
tCLKH
2.048
4.096
8.192
0.4/fCLK
0.4/fCLK
-
-
-
-
-
12.288
12.288
12.288
MHz
MHz
MHz
ns
Pulse Width Low
Pulse Width High
-
-
ns
LRCK Output Timing
Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK Output Timing
fs
8
-
-
-
48
-
-
kHz
ns
%
tLRCKH
Duty
tBCK
50
Period
BCKO bit = “0”
BCKO bit = “1”
tBCK
tBCK
dBCK
-
-
-
1/(32fs)
1/(64fs)
50
-
-
-
ns
ns
%
Duty Cycle
Note 52. The minimum value is longer time between 312.5ns and 1/(126fs)s.
MS1402-E-06
2013/02
- 24 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
