[AK4675]
Units
Parameter
Symbol
min
typ
max
PCM Interface Timing (BICKB, SYNCB, SDTIB, SDTOB pins; Slave Mode):
SYNCB Timing
Frequency
fs2
-
8
-
kHz
Serial Interface Timing at Short/long Frame Sync
BICKB Frequency
BICKB Period
fBCK3
tBCK3
tBCKL3
tBCKH3
tSYB3
tSYB3
tBSY3
tBSY3
tSYD3
tBSD3
tBSD3
tSDH3
tSDS3
tSYL3
tSYH3
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
BICKB Pulse Width Low
Pulse Width High
SYNCB Edge to BICKB “↑” (Note 67)
SYNCB Edge to BICKB “↓” (Note 68)
BICKB “↑” to SYNCB Edge (Note 67)
BICKB “↓” to SYNCB Edge (Note 68)
SYNCB to SDTOB (MSB) (Except Short Frame)
BICKB “↑” to SDTOB (BCKPB bit = “0”)
BICKB “↓” to SDTOB (BCKPB bit = “1”)
SDTIB Hold Time
SDTIB Setup Time
SYNCB Pulse Width Low
Pulse Width High
0.8 x tBCK2
0.8 x tBCK2
-
Serial Interface Timing at MSB justified and I2S
BICKB Frequency
fBCK3
tBCK3
tBCKL3
tBCKH3
tSYB3
tBSY3
tSYD3
tBSD3
tSDH3
tSDH3
dSYC3
256
488
200
200
50
50
-
-
-
-
-
-
-
-
-
-
2048
-
-
-
-
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
BICKB Period
BICKB Pulse Width Low
Pulse Width High
SYNCB Edge to BICKB “↑”
BICKB “↑” to SYNCB Edge
SYNCB to SDTOB (MSB) (Except I2S mode)
BICKB “↓” to SDTOB
SDTIB Hold Time
SDTIB Setup Time
-
80
80
-
-
55
-
50
50
45
-
50
SYNCB Duty Cycle
Note 67. MSBSB, BCKPB bits = “00” or “11”.
Note 68. MSBSB, BCKPB bits = “01” or “10”.
MS0963-E-00
2008/05
- 31 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
