[AK4675]
MS0963-E-00
2008/05
- 32 -
Parameter Symbol
min
typ
max
Units
PCM Interface Timing (BICKB, SYNCB, SDTIB, SDTOB pins; Master Mode):
SYNCB
Timing
Frequency
fs2 - 8 -
kHz
BICKB
Timing
Period (BCKO2 bit = “0”)
tBCK2 - 1/(16fs2) - kHz
(BCKO2 bit = “1”)
tBCK2 - 1/(32fs2) - kHz
Duty Cycle
dBCK2
- 50 -
%
Serial Interface Timing at Short/long Frame Sync
SYNCB Edge to BICKB “
↑
” (
tSYB3
0.5 x tBCK2
−
40
0.5 x tBCK2
0.5 x tBCK2 + 40
ns
SYNCB Edge to BICKB “
↓
” (
tSYB3
0.5 x tBCK2
−
40
0.5 x tBCK2
0.5 x tBCK2 + 40
ns
BICKB “
↑
” to SDTOB (BCKPB bit = “0”)
tBSD3
−
70
- 70
ns
BICKB “
↓
” to SDTOB (BCKPB bit = “1”)
tBSD3
−
70
- 70
ns
SDTIB Hold Time
tSDH3
50
-
-
ns
SDTIB Setup Time
tSDS3
50
-
-
ns
SYNCB Pulse Width High
tSYH3
-
tBCK2
-
ns
Serial Interface Timing at MSB justified and
I
2
S
BICKB “
↓
” to SYNCB Edge
tBSY3
−
40
- 40
ns
SYNCB to SDTOB (MSB) (Except I
2
S mode)
tSYD3
−
70
- 70
ns
BICKB “
↓
” to SDTOB
tBSD3
−
70
- 70
ns
SDTIB Hold Time
tSDH3
50
-
-
ns
SDTIB Setup Time
tSDH3
50
-
-
ns
SYNCB Duty Cycle
dSYC3
-
50
-
%
Note 67. MSBSB, BCKPB bits = “00” or “11”.
Note 68. MSBSB, BCKPB bits = “01” or “10”.