ak4633 AKM Semiconductor, Inc., ak4633 Datasheet - Page 16

• Manufacturer Part Number: ak4633
• Description: 16-bit ?? Mono Codec With Alc & Mic/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Parameter
EXT Master Mode (Figure 2)
MCKI Frequency: 256fs
FCK Frequency (MCKI = 256fs)
BICK: Period (BCKO1-0 bit= “00”)
Audio Interface Timing
Note 21. Duty Cycle = (the width of “L” ) / (the period of clock) × 100
Note 22. MSBS, BCKP bits = “00” or “11”
Note 23. MSBS, BCKP bits = “01” or “10”
Note 24. BICK rising edge must not occur at the same time as FCK edge.
MS0447-E-03
DSP Mode: (Figure 3, Figure 4)
Except DSP Mode: (Figure 5)
Duty Cycle
SDTI Hold Time
SDTI Setup Time
FCK “↑” to BICK “↑” (Note 22)
FCK “↑” to BICK “↓” (Note 23)
BICK “↑” to SDTO (BCKP bit= “0”)
BICK “↓” to SDTO (BCKP bit= “1”)
SDTI Hold Time
SDTI Setup Time
BICK “↓” to FCK Edge
FCK to SDTO (MSB)
BICK “↓” to SDTO
Pulse Width Low
Pulse Width High
Duty Cycle
(BCKO1-0 bit= “01”)
(BCKO1-0 bit= “10”)
(MCKI = 512fs)
(MCKI = 1024fs)
1024fs
512fs
(Except I
2
S mode)
Symbol
tCLKH
tCLKL
tBFCK
dBCK
dFCK
fCLK
fCLK
fCLK
fFCK
fFCK
fFCK
tBCK
tBCK
tBCK
tSDH
tSDH
tDBF
tDBF
tBSD
tBSD
tBSD
tSDS
tFSD
tSDS
- 16 -
0.5 x tBCK -40
0.5 x tBCK -40
0.4/fCLK
0.4/fCLK
1.8816
3.7632
7.5264
7.35
7.35
7.35
min
-70
-70
-40
-70
-70
50
50
50
50
-
-
-
-
-
0.5 x tBCK
0.5 x tBCK
1/16fFCK
1/32fFCK
1/64fFCK
2.048
4.096
8.192
typ
50
50
8
8
8
-
-
-
-
-
-
-
-
-
-
-
0.5 x tBCK + 40
0.5 x tBCK +40
12.288
13.312
13.312
max
48
26
13
70
70
40
70
70
-
-
-
-
-
-
-
-
-
-
-
[AK4633]
2006/04
Units
MHz
MHz
MHz
kHz
kHz
kHz
ns
ns
%
ns
ns
ns
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns