AK4679EG Datasheet, PDF (24/220 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with DSP and MIC/RCV/HP/SPK/LINE-AMP

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