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[AK4675]
MS0963-E-00
2008/05
- 31 -
Parameter Symbol
min
typ
max
Units
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
fBCK3 128 -
2048
kHz
BICKB Period
tBCK3 488 - - ns
BICKB Pulse Width Low
tBCKL3
200
-
-
ns
Pulse Width High
tBCKH3
200
-
-
ns
SYNCB Edge to BICKB “
↑
” (
tSYB3 50 - - ns
SYNCB Edge to BICKB “
↓
” (
tSYB3 50 - - ns
BICKB “
↑
” to SYNCB Edge (
)
tBSY3 50 - - ns
BICKB “
↓
” to SYNCB Edge (
)
tBSY3 50 - - ns
SYNCB to SDTOB (MSB) (Except Short Frame)
tSYD3
-
-
80
ns
BICKB “
↑
” to SDTOB (BCKPB bit = “0”)
tBSD3 - -
80
ns
BICKB “
↓
” to SDTOB (BCKPB bit = “1”)
tBSD3 - -
80
ns
SDTIB Hold Time
tSDH3
50
-
-
ns
SDTIB Setup Time
tSDS3
50
-
-
ns
SYNCB Pulse Width Low
tSYL3
0.8 x tBCK2
-
-
ns
Pulse Width High
tSYH3
0.8 x tBCK2
-
-
ns
Serial Interface Timing at MSB justified and
I
2
S
BICKB Frequency
fBCK3 256 -
2048
kHz
BICKB Period
tBCK3 488 - - ns
BICKB Pulse Width Low
tBCKL3
200
-
-
ns
Pulse Width High
tBCKH3
200
-
-
ns
SYNCB Edge to BICKB “
↑
”
tSYB3 50 - - ns
BICKB “
↑
” to SYNCB Edge
tBSY3 50 - - ns
SYNCB to SDTOB (MSB) (Except I
2
S mode)
tSYD3
-
-
80
ns
BICKB “
↓
” to SDTOB
tBSD3 - -
80
ns
SDTIB Hold Time
tSDH3
50
-
-
ns
SDTIB Setup Time
tSDH3
50
-
-
ns
SYNCB Duty Cycle
dSYC3
45
50
55
%
Note 67. MSBSB, BCKPB bits = “00” or “11”.
Note 68. MSBSB, BCKPB bits = “01” or “10”.