ak4631 ETC-unknow, ak4631 Datasheet - Page 13

• Manufacturer Part Number: ak4631
• Description: 16-bit Mono Codec With Mic/spk-amp
• Manufacturer: ETC-unknow

ASAHI KASEI
PLL Slave Mode (PLL Reference Clock: FCK pin) (Figure 6, Figure 7)
FCK: Frequency
BICK: Period
PLL Slave Mode (PLL Reference Clock: BICK pin) (Figure 6, Figure 7)
FCK: Frequency
BICK: Period (PLL3-0 = “0001”)
PLL Slave Mode (PLL Reference Clock: MCKI pin) (Figure 8)
MCKI Input: Frequency
MCKO Output:
FCK: Frequency
BICK: Period
Audio Interface Timing
MS0317-J-01
Parameter
Frequency
Duty Cycle except fs=29.4kHz, 32kHz
DSP Mode: (Figure 9, Figure 10)
Except DSP Mode: (Figure 12)
DSP Mode: Pulse Width High
Except DSP Mode: Duty Cycle
DSP Mode: Pulse width High
Except DSP Mode: Duty Cycle
DSP Mode: Pulse width High
Except DSP Mode: Duty Cycle
Pulse Width Low
Pulse Width High
FCK Edge to BICK “↑” (Note 26)
FCK to SDTO (MSB) (Except I
SDTI Hold Time
SDTI Setup Time
Pulse Width Low
Pulse Width High
Pulse Width Low
Pulse Width High
FCK “↑” to BICK “↑” (Note 24)
FCK “↑” to BICK “↓” (Note 25)
BICK “↑” to FCK “↑” (Note 24)
BICK “↓” to FCK “↑” (Note 25)
BICK “↑” to SDTO (BCKP = “0”)
BICK “↓” to SDTO (BCKP = “1”)
SDTI Hold Time
SDTI Setup Time
BICK “↑” to FCK Edge (Note 26)
BICK “↓” to SDTO
Pulse Width Low
Pulse Width High
(PLL3-0 = “0010”)
(PLL3-0 = “0011”)
fs=29.4kHz, 32kHz (Note 23)
2
S mode)
Symbol
tBCKH
tBCKH
fCLKH
tBCKH
tFCKH
tBCKL
tFCKH
tBCKL
fCLKL
tFCKH
tBCKL
tFCKB
tFCKB
tBFCK
tBFCK
tFCKB
tBFCK
dMCK
dMCK
fMCK
tBCK
tBCK
tBCK
tBCK
fCLK
tBCK
fFCK
fFCK
fFCK
tBSD
tBSD
tSDH
tBSD
tSDH
tSDS
tFSD
tSDS
duty
duty
duty
- 13 -
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
0.4 x tBCK
1/64fFCK
1/64fFCK
0.4/fCLK
0.4/fCLK
tBCK-60
tBCK-60
tBCK-60
11.2896
7.35
7.35
min
240
240
45
45
40
45
50
50
50
50
50
50
8
256 x fFCK
1/16fFCK
1/32fFCK
1/64fFCK
typ
50
33
8
8
1/fFCK-tBFCK
1/fFCK-tBFCK
1/fFCK-tBFCK
1/16fFCK
1/16fFCK
max
27.0
26
55
48
55
60
48
55
80
80
80
80
[AK4631]
2004/11
Units
MHz
kHz
kHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
%