AK4679EG Datasheet, PDF (27/220 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with DSP and MIC/RCV/HP/SPK/LINE-AMP

[AK4679]
Parameter
Symbol
min
typ
max
Unit
PCM Interface Timing (BICKB, SYNCB, SDTIB, SDTOB pins):
SYNCB Timing
Frequency
fs3
8
-
48
kHz
Serial Interface Timing at Short/long Frame Sync
BICKB Frequency
fBCK3
128
-
4096 kHz
BICKB Period
tBCK3
244
-
-
ns
BICKB Pulse Width Low
tBCKL3
100
-
-
ns
Pulse Width High
tBCKH3
100
-
-
ns
SYNCB Edge to BICKB “↓” (Note 58)
tSYB3
40
-
-
ns
SYNCB Edge to BICKB “↑” (Note 59)
tSYB3
40
-
-
ns
BICKB “↓” to SYNCB Edge (Note 58)
tBSY3
40
-
-
ns
BICKB “↑” to SYNCB Edge (Note 59)
tBSY3
40
-
-
ns
SYNCB to SDTOB (MSB) (Except Short Frame) tSYD3
-
-
60
ns
BICKB “↑” to SDTOB (BCKPB bit = “0”)
BICKB “↓” to SDTOB (BCKPB bit = “1”)
tBSD3
-
tBSD3
-
-
60
ns
-
60
ns
SDTIB Hold Time
tSDH3
25
-
-
ns
SDTIB Setup Time
tSDS3
25
-
-
ns
SYNCB Pulse Width Low
tSYL3 0.8 x tBCK3 -
-
ns
Pulse Width High
tSYH3 0.8 x tBCK3 -
-
ns
Serial Interface Timing at MSB justified and I²S
BICKB Frequency
fBCK3
256
-
3072 kHz
BICKB Period
tBCK3
312.5
-
-
ns
BICKB Pulse Width Low
tBCKL3
130
-
-
ns
Pulse Width High
tBCKH3
130
-
-
ns
SYNCB Edge to BICKB “↑”
tSYB3
50
-
-
ns
BICKB “↑” to SYNCB Edge
tBSY3
50
SYNCB to SDTOB (MSB) (Except I²S mode)
tSYD3
-
-
-
ns
-
80
ns
BICKB “↓” to SDTOB
tBSD3
-
-
80
ns
SDTIB Hold Time
tSDH3
50
-
-
ns
SDTIB Setup Time
tSDS3
50
-
-
ns
SYNCB Duty Cycle
dSYC3
45
50
55
%
Note 58. MSBSB, BCKPB bits = “00” or “11”.
Note 59. MSBSB, BCKPB bits = “01” or “10”.
MS1402-E-06
- 27 -
2013/02