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MAS3549F 参数 Datasheet PDF下载

MAS3549F图片预览
型号: MAS3549F
PDF下载: 下载PDF文件 查看货源
内容描述: MAS 35x9F MPEG 2/3层, AAC音频解码器, G.729附录编解码器 [MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec]
分类和应用: 解码器编解码器
文件页数/大小: 92 页 / 1187 K
品牌: MICRONAS [ MICRONAS ]
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MAS 35x9F  
DATA SHEET  
4.6.2.4. S/PDIF Input Characteristics  
at T = T , V  
, V  
= 2.2 ... 3.6 V, f  
= 18.432 MHz, Typ. values for T = 25 °C in P(L/M)QFP package.  
Crystal A  
A
SUPD SUPA  
Limit Values  
Symbol  
Parameter  
Pin Name  
Unit  
Test Conditions  
Min.  
Typ.  
Max.  
VS  
fs1  
fs2  
fs3  
tP  
Signal amplitude  
Bi-phase frequency  
Bi-phase frequency  
Bi-phase frequency  
Bi-phase period  
Rise time  
SPDI1, SPDI2, 200  
SPDIR  
500  
1000  
mVpp  
MHz  
MHz  
MHz  
ns  
SPDI1, SPDI2,  
SPDIR  
2.048  
2.822  
3.072  
326  
±1000 ppm, fs = 48 kHz  
SPDI1, SPDI2,  
SPDIR  
±1000 ppm,  
fs = 44.1 kHz  
SPDI1, SPDI2,  
SPDIR  
±1000 ppm, fs = 32 kHz  
SPDI1, SPDI2,  
SPDIR  
at fs = 48 kHz, (highest  
sampling rate)  
tR  
SPDI1, SPDI2,  
SPDIR  
0
65  
ns  
at fs = 48 kHz, (highest  
sampling rate)  
tF  
Fall time  
SPDI1, SPDI2,  
SPDIR  
0
65  
ns  
at fs = 48 kHz, (highest  
sampling rate)  
Duty cycle  
SPDI  
40  
81  
50  
60  
%
at bit value=1 and  
fs = 48 kHz  
tH1,L1  
SPDI  
163  
ns  
minimum/maximum pulse  
duration with a level  
above 90 % or below  
10 % and at fs = 48 kHz  
tH0,L0  
SPDI  
163  
244  
ns  
minimum/maximum pulse  
duration with a level  
above 90 % or below  
10 % and at fs = 48 kHz  
t
t
R
F
t
t
H1  
L1  
Bit value = 1  
Bit value = 0  
t
t
L0  
H0  
t
P
Fig. 4–26: Timing of the S/PDIF input  
76  
June 30, 2004; 6251-505-1DS  
Micronas  
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