ak4631 ETC-unknow, ak4631 Datasheet - Page 12

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

ASAHI KASEI
(Ta = 25°C; AVDD, DVDD =2.6 ∼ 3.6V, SVDD =2.6 ∼ 5.25V; C
Parameter
PLL Master Mode (PLL Reference Clock = MCKI pin) (Figure 2)
MCKI Input: Frequency
MCKO Output:
FCK Output: Frequency
BICK: Period (BCKO1-0 = “00”)
Audio Interface Timing
MS0317-J-01
Frequency
Duty Cycle except fs=29.4kHz,32kHz
DSP Mode: (Figure 3, Figure 4)
Except DSP Mode: (Figure 5)
SDTI Hold Time
SDTI Setup Time
FCK “↑” to BICK “↑” (Note 24)
FCK “↑” to BICK “↓” (Note 25)
BICK “↑” to SDTO (BCKP = “0”)
BICK “↓” to SDTO (BCKP = “1”)
SDTI Hold Time
SDTI Setup Time
BICK “↓” to FCK Edge
FCK to SDTO (MSB) (Except I
mode)
BICK “↓” to SDTO
Duty Cycle
fs=29.4kHz, 32kHz (Note 23)
Duty Cycle
Pulse Width Low
Pulse Width High
(BCKO1-0 = “01”)
(BCKO1-0 = “10”)
2
S
Symbol
tCLKH
tCLKL
tBFCK
dMCK
dMCK
fMCK
dBCK
dFCK
fCLK
tBCK
tBCK
tBCK
fFCK
tDBF
tDBF
tBSD
tBSD
tSDH
tBSD
tSDH
tSDS
tFSD
tSDS
スイッチング特性
- 12 -
0.5 x tBCK -40
0.5 x tBCK -40
0.4/fCLK
0.4/fCLK
11.2896
min
-70
-70
-40
-70
-70
40
50
50
50
50
8
L
=20pF)
256 x fFCK
0.5 x tBCK
0.5 x tBCK
1/16fFCK
1/32fFCK
1/64fFCK
typ
50
33
50
50
0.5 x tBCK + 40
0.5 x tBCK +40
27.0
max
60
48
70
70
40
70
70
[AK4631]
2004/11
Units
MHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%