參數(shù)資料
型號: 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): 14/69頁
文件大小: 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 14 -
Parameter
EXT Slave Mode (Figure 11)
MCKI Frequency: 256fs
512fs
1024fs
Pulse Width Low
Pulse Width High
FCK Frequency (MCKI = 256fs)
(MCKI = 512fs)
(MCKI = 1024fs)
Duty Cycle
BICK Period
BICK Pulse Width Low
Pulse Width High
Audio Interface Timing (Figure 12)
FCK Edge to BICK “
” (Note 26)
BICK “
” to FCK Edge (Note 26)
FCK to SDTO (MSB) (Except I
2
S mode)
BICK “
” to SDTO
SDTI Hold Time
SDTI Setup Time
Note 23. Duty Cycle = “L ”
Note 24. MSBS, BCKP bits = “00” or “11”
Note 25. MSBS, BCKP bits = “01” or “10”
Note 26.
Parameter
Control Interface Timing:
CCLK Period
CCLK Pulse Width Low
Pulse Width High
CDTI Setup Time
CDTI Hold Time
CSN “H” Time
CSN “
” to CCLK “
CCLK “
” to CSN “
Reset Timing
PDN Pulse Width (Note 27)
PMADC “
” to SDTO valid (Note 28)
Symbol
min
typ
max
Units
fCLK
fCLK
fCLK
tCLKL
tCLKH
fFCK
fFCK
fFCK
duty
tBCK
tBCKL
tBCKH
tFCKB
tBFCK
tFSD
tBSD
tSDH
tSDS
1.8816
3.7632
7.5264
0.4/fCLK
0.4/fCLK
7.35
7.35
7.35
45
312.5
130
130
50
50
50
50
2.048
4.096
8.192
8
8
8
12.288
13.312
13.312
48
26
13
55
80
80
MHz
MHz
MHz
ns
ns
kHz
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
/
×
100
FCK
BICK
Symbol
tCCK
tCCKL
tCCKH
tCDS
tCDH
tCSW
tCSS
tCSH
tPD
tPDV
min
200
80
80
40
40
150
150
50
150
typ
1059
max
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
1/fs
Note 27. AK4631
Note 28. PMADC bit
PDN pin = “L”
FCK
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