參數(shù)資料
型號(hào): AK4631
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述: 16位單聲道編解碼器ALC的
文件頁數(shù): 12/69頁
文件大小: 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 12 -
(Ta = 25
°
C; AVDD, DVDD =2.6
3.6V, SVDD =2.6
5.25V; C
L
=20pF)
Parameter
PLL Master Mode (PLL Reference Clock = MCKI pin) (Figure 2)
MCKI Input: Frequency
Pulse Width Low
Pulse Width High
MCKO Output:
Frequency
Duty Cycle except fs=29.4kHz,32kHz
fs=29.4kHz, 32kHz (Note 23)
FCK Output: Frequency
Duty Cycle
BICK: Period (BCKO1-0 = “00”)
(BCKO1-0 = “01”)
(BCKO1-0 = “10”)
Duty Cycle
Audio Interface Timing
DSP Mode: (Figure 3, Figure 4)
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
Except DSP Mode: (Figure 5)
BICK “
” to FCK Edge
FCK to SDTO (MSB) (Except I
2
S
mode)
BICK “
” to SDTO
SDTI Hold Time
SDTI Setup Time
Symbol
min
typ
max
Units
fCLK
tCLKL
tCLKH
fMCK
dMCK
dMCK
fFCK
dFCK
tBCK
tBCK
tBCK
dBCK
tDBF
tDBF
tBSD
tBSD
tSDH
tSDS
tBFCK
tFSD
tBSD
tSDH
tSDS
11.2896
0.4/fCLK
0.4/fCLK
40
8
0.5 x tBCK -40
0.5 x tBCK -40
-70
-70
50
50
-40
-70
-70
50
50
27.0
60
48
MHz
ns
ns
256 x fFCK
50
33
kHz
%
%
kHz
%
ns
ns
ns
%
50
1/16fFCK
1/32fFCK
1/64fFCK
50
0.5 x tBCK
0.5 x tBCK
0.5 x tBCK + 40
0.5 x tBCK +40
70
70
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
40
70
70
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