AK4671_10 Datasheet, PDF (24/166 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/RCV/HP-AMP

[AK4671]
Parameter
Symbol
min
PCM Interface Timing (BICKB, SYNCB, SDTIB, SDTOB pins; Master Mode):
SYNCB Timing
Frequency
fs2
-
BICKB Timing
Period (BCKO2 bit = “0”)
tBCK3
-
(BCKO2 bit = “1”)
tBCK3
-
Duty Cycle
dBCK3
-
Serial Interface Timing at Short/long Frame Sync
SYNCB Edge to BICKB “↓” (Note 48)
tSYB3 0.5 x tBCK3 − 40
SYNCB Edge to BICKB “↑” (Note 49)
tSYB3 0.5 x tBCK3 − 40
BICKB “↑” to SDTOB (BCKPB bit = “0”)
tBSD3
−70
BICKB “↓” to SDTOB (BCKPB bit = “1”)
tBSD3
−70
SDTIB Hold Time
tSDH3
50
SDTIB Setup Time
tSDS3
50
SYNCB Pulse Width High
tSYH3
-
Serial Interface Timing at MSB justified and I²S
BICKB “↓” to SYNCB Edge
tMBSY3
−40
SYNCB to SDTOB (MSB) (Except I²S mode)
tSYD3
−70
BICKB “↓” to SDTOB
tBSD3
−70
SDTIB Hold Time
tSDH3
50
SDTIB Setup Time
tSDS3
50
SYNCB Duty Cycle
dSYC3
-
typ
8
1/(16fs2)
1/(32fs2)
50
0.5 x tBCK3
0.5 x tBCK3
-
-
-
-
tBCK3
-
-
-
-
-
50
max
Units
-
kHz
-
ns
-
ns
-
%
0.5 x tBCK3 + 40 ns
0.5 x tBCK3 + 40 ns
70
ns
70
ns
-
ns
-
ns
-
ns
40
ns
70
ns
70
ns
-
ns
-
ns
-
%
Note 48. MSBSB, BCKPB bits = “00” or “11”.
Note 49. MSBSB, BCKPB bits = “01” or “10”.
MS0666-E-02
- 24 -
2010/06