[AK4675]
Units
Parameter
Symbol
min
typ
max
PCM Interface Timing (BICKA, SYNCA, SDTIA, SDTOA pins; Slave Mode):
SYNCA Timing
Frequency
fs2
-
8
-
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
488
200
200
50
50
50
50
-
-
-
50
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2048
-
-
-
-
-
-
-
80
80
80
-
-
-
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 65)
SYNCA Edge to BICKA “↓” (Note 66)
BICKA “↑” to SYNCA Edge (Note 65)
BICKA “↓” to SYNCA Edge (Note 66)
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
tSDH2
dSYC2
256
488
200
200
50
50
-
-
-
-
-
-
-
-
-
-
2048
-
-
-
-
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
50
45
-
50
SYNCA Duty Cycle
Note 65. MSBSA, BCKPA bits = “00” or “11”.
Note 66. MSBSA, BCKPA bits = “01” or “10”.
MS0963-E-00
2008/05
- 29 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
