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BT8375EPF 参数 Datasheet PDF下载

BT8375EPF图片预览
型号: BT8375EPF
PDF下载: 下载PDF文件 查看货源
内容描述: 单芯片收发器T1 / E1和综合业务数字网( ISDN )基本速率接口 [single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces]
分类和应用: 电信集成电路综合业务数字网
文件页数/大小: 323 页 / 1950 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
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Bt8370/8375/8376  
2.0 Circuit Description  
Fully Integrated T1/E1 Framer and Line Interface  
2.9 Transmit Line Interface Unit  
2.9.4.2 Return Loss  
Return loss is the measure of loss in the return path due to an impedance  
mismatch. To meet a 18 dB transmitter return loss, independent of the cable  
type, uses a 51.1 termination resistor (see Figure 2-46). To see the effect of  
different termination resistors on the pulse height, see Figure 2-47.  
Figure 2-46. Nominal Return Loss  
Nominal Return Loss for 75, 100, 120 lines, xfmr=1:1.36  
0
-10  
18 dB  
-20  
31 dB  
-30  
-40  
-50  
-60  
-70  
-80  
75  
100  
120  
30  
35  
40  
45  
50  
55  
Rterm [ ]  
60  
65  
70  
75  
80  
N8370DSE  
Conexant  
2-81  
 
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