
ASAHI KASEI
[AK4633]
MS0447-E-03
2006/04
- 14 -
Parameter
PLL Slave Mode (PLL Reference Clock: FCK pin) (Figure 6,Figure 7)
FCK: Frequency
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
BICK: Period
Pulse Width Low
Pulse Width High
PLL Slave Mode (PLL Reference Clock: BICK pin) (Figure 6,Figure 7)
FCK: Frequency
DSP Mode: Pulse width High
Except DSP Mode: Duty Cycle
BICK: Period (PLL3-0 =
“
0001
”
)
(PLL3-0 =
“
0010
”
)
(PLL3-0 =
“
0011
”
)
Pulse Width Low
Pulse Width High
PLL Slave Mode (PLL Reference Clock: MCKI pin) (Figure 8)
MCKI Input: Frequency
Pulse Width Low
Pulse Width High
MCKO Output:
Frequency
Duty Cycle except fs=29.4kHz, 32kHz
fs=29.4kHz, 32kHz (Note 21)
FCK: Frequency
DSP Mode: Pulse width High
Except DSP Mode: Duty Cycle
BICK: Period
Pulse Width Low
Pulse Width High
Audio Interface Timing
DSP Mode: (Figure 9, Figure 10)
FCK
“
↑
”
to BICK
“
↑
”
(Note 22)
FCK
“
↑
”
to BICK
“
↓
”
()
BICK
“
↑
”
to FCK
“
↑
”
(Note 22)
BICK
“
↓
”
to FCK
“
↑
”
()
BICK
“
↑
”
to SDTO (BCKP =
“
0
”
)
BICK
“
↓
”
to SDTO (BCKP =
“
1
”
)
SDTI Hold Time
SDTI Setup Time
Except DSP Mode: (Figure 12)
FCK Edge to BICK
“
↑
”
(Note 24)
BICK
“
↑
”
to FCK Edge (Note 24)
FCK to SDTO (MSB) (Except I
2
S mode)
BICK
“
↓
”
to SDTO
SDTI Hold Time
SDTI Setup Time
Symbol
min
typ
max
Units
fFCK
tFCKH
duty
tBCK
tBCKL
tBCKH
7.35
tBCK-60
45
1/64fFCK
0.4 x tBCK
0.4 x tBCK
8
-
-
-
-
-
48
1/fFCK-tBCK
55
1/16fFCK
-
-
kHz
ns
%
ns
ns
ns
fFCK
tFCKH
duty
tBCK
tBCK
tBCK
tBCKL
tBCKH
7.35
tBCK-60
45
-
-
-
0.4 x tBCK
0.4 x tBCK
8
-
-
48
1/fFCK-tBCK
55
-
-
-
-
-
kHz
ns
%
ns
ns
ns
ns
ns
1/16fFCK
1/32fFCK
1/64fFCK
-
-
fCLK
fCLKL
fCLKH
fMCK
dMCK
dMCK
fFCK
tFCKH
duty
tBCK
tBCKL
tBCKH
tFCKB
tFCKB
tBFCK
tBFCK
tBSD
tBSD
tSDH
tSDS
tFCKB
tBFCK
tFSD
tBSD
tSDH
tSDS
11.2896
0.4/fCLK
0.4/fCLK
-
40
-
8
tBCK-60
45
1/64fFCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
-
-
50
50
50
50
-
-
50
50
-
-
-
27.0
-
-
-
60
-
48
MHz
ns
ns
256 x fFCK
50
33
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
kHz
%
%
kHz
ns
%
ns
ns
ns
1/fFCK-tBFCK
55
1/16fFCK
-
-
-
-
-
-
80
80
-
-
-
-
80
80
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns