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AK4634 参数 Datasheet PDF下载

AK4634图片预览
型号: AK4634
PDF下载: 下载PDF文件 查看货源
内容描述: 16位单声道编解码器与ALC & MIC / SPK- AMP [16-Bit Mono CODEC with ALC & MIC/SPK-AMP]
分类和应用: 解码器编解码器
文件页数/大小: 77 页 / 959 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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[AK4634]  
Parameter  
Symbol  
min  
typ  
max  
Units  
EXT Master Mode (Figure 2)  
MCKI Frequency: 256fs  
512fs  
fCLK  
fCLK  
fCLK  
tCLKL  
tCLKH  
fFCK  
fFCK  
fFCK  
dFCK  
tBCK  
tBCK  
tBCK  
dBCK  
1.8816  
2.048  
12.288  
MHz  
MHz  
MHz  
ns  
3.7632  
4.096  
13.312  
1024fs  
7.5264  
8.192  
13.312  
Pulse Width Low  
Pulse Width High  
FCK Frequency (MCKI = 256fs)  
(MCKI = 512fs)  
0.4/fCLK  
-
-
-
0.4/fCLK  
-
ns  
7.35  
8
48  
26  
13  
-
kHz  
kHz  
kHz  
%
7.35  
8
8
(MCKI = 1024fs)  
Duty Cycle  
7.35  
-
-
-
-
-
50  
BICK: Period (BCKO1-0 bit = “00”)  
(BCKO1-0 bit = “01”)  
(BCKO1-0 bit = “10”)  
Duty Cycle  
1/16fFCK  
1/32fFCK  
1/64fFCK  
50  
-
ns  
-
ns  
-
ns  
-
%
Audio Interface Timing  
DSP Mode: (Figure 3, Figure 4)  
FCK “” to BICK “” (Note 22)  
FCK “” to BICK “” (Note 23)  
BICK “” to SDTO (BCKP bit = “0”)  
BICK “” to SDTO (BCKP bit = “1”)  
SDTI Hold Time  
tDBF  
tDBF  
tBSD  
tBSD  
tSDH  
tSDS  
0.5 x tBCK40  
0.5 x tBCK40  
0.5 x tBCK  
0.5 x tBCK + 40  
ns  
ns  
ns  
ns  
ns  
ns  
0.5 x tBCK  
0.5 x tBCK +40  
70  
70  
50  
-
-
-
-
70  
70  
-
SDTI Setup Time  
50  
-
Except DSP Mode: (Figure 5)  
BICK “” to FCK Edge  
FCK to SDTO (MSB)  
tBFCK  
tFSD  
40  
70  
-
-
40  
70  
ns  
ns  
(Except I2S mode)  
BICK “” to SDTO  
SDTI Hold Time  
tBSD  
tSDH  
tSDS  
70  
50  
-
-
-
70  
-
ns  
ns  
ns  
SDTI Setup Time  
50  
-
Note 21. Duty Cycle = (the width of “L”)/(the period of clock)*100  
Note 22. MSBS, BCKP bits = “00” or “11”  
Note 23. MSBS, BCKP bits = “01” or “10”  
Note 24. BICK rising edge must not occur at the same time as FCK edge.  
Rev. 0.5  
2007/10  
- 13 -