[AK4679]
Unit
Parameter
Symbol
min
typ
max
PCM Interface Timing (BICKA, SYNCA, SDTIA, SDTOA pins):
SYNCA Timing
Frequency
fs2
8
-
16
kHz
Serial Interface Timing at Short/long Frame Sync
BICKA Frequency
BICKA Period
fBCK2
tBCK2
tBCKL2
tBCKH2
tSYB2
tSYB2
tBSY2
tBSY2
tSYD2
tBSD2
tBSD2
tSDH2
tSDS2
tSYL2
tSYH2
128
244
100
100
40
40
40
40
-
-
-
25
25
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4096
-
-
-
-
-
-
-
60
60
60
-
-
-
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
BICKA Pulse Width Low
Pulse Width High
SYNCA Edge to BICKA “↓” (Note 56)
SYNCA Edge to BICKA “↑” (Note 57)
BICKA “↓” to SYNCA Edge (Note 56)
BICKA “↑” to SYNCA Edge (Note 57)
SYNCA to SDTOA (MSB) (Except Short Frame)
BICKA “↑” to SDTOA (BCKPA bit = “0”)
BICKA “↓” to SDTOA (BCKPA bit = “1”)
SDTIA Hold Time
SDTIA Setup Time
SYNCA Pulse Width Low
Pulse Width High
0.8 x tBCK2
0.8 x tBCK2
-
Serial Interface Timing at MSB justified and I2S
BICKA Frequency
fBCK2
tBCK2
tBCKL2
tBCKH2
tSYB2
tBSY2
tSYD2
tBSD2
tSDH2
tSDS2
256
312.5
130
130
50
50
-
-
50
50
45
-
-
-
-
-
-
-
-
-
3072
-
-
-
-
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
BICKA Period
BICKA Pulse Width Low
Pulse Width High
SYNCA Edge to BICKA “↑”
BICKA “↑” to SYNCA Edge
SYNCA to SDTOA (MSB) (Except I2S mode)
BICKA “↓” to SDTOA
SDTIA Hold Time
SDTIA Setup Time
-
80
80
-
-
55
-
50
SYNCA Duty Cycle
dSYC2
Note 56. MSBSA, BCKPA bits = “00” or “11”.
Note 57. MSBSA, BCKPA bits = “01” or “10”.
MS1402-E-06
2013/02
- 26 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
