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MT9074AL 参数 Datasheet PDF下载

MT9074AL图片预览
型号: MT9074AL
PDF下载: 下载PDF文件 查看货源
内容描述: T1 / E1 / J1单芯片收发器 [T1/E1/J1 Single Chip Transceiver]
分类和应用: 电信集成电路
文件页数/大小: 122 页 / 371 K
品牌: MITEL [ MITEL NETWORKS CORPORATION ]
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MT9074  
Advance Information  
Percentage of  
Nominal Peak  
Voltage  
269nS  
120  
110  
100  
90  
244nS  
194nS  
80  
50  
20  
0
-10  
-20  
Nominal Pulse  
219nS  
488nS  
Figure 8 Pulse Template (G.703)(E1)  
20 Mhz Clock  
Frequency:  
Tolerance:  
20MHz  
50ppm  
Oscillation Mode:  
Resonance Mode:  
Load Capacitance:  
Fundamental  
Parallel  
32pF  
The MT9074 requires a 20 Mhz clock. This may  
provided by a 50 ppm oscillator as per Figure 9.  
+5V  
Maximum Series Resistance:  
Approximate Drive Level:  
35Ω  
1mW  
Vdd  
20MHz  
OSC1  
20MHz  
OUT  
.1µF  
GND  
OSC1  
56pF  
39pF  
1MΩ  
OSC2  
(open)  
1µH*  
100Ω  
OSC2  
Figure 9 - Clock Oscillator Circuit  
Note: the 1µH inductor is optional  
Alternatively, a crystal oscillator may be used. A  
complete oscillator circuit made up of a crystal,  
resistors and capacitors is shown in Figure 10. The  
crystal specification is as follows.  
Figure 10 - Crystal Oscillator Circuit  
12  
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