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CX28331 参数 Datasheet PDF下载

CX28331图片预览
型号: CX28331
PDF下载: 下载PDF文件 查看货源
内容描述: 单/双/三E3 / DS3 / STS - 1线路接口单元 [Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit]
分类和应用:
文件页数/大小: 68 页 / 549 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
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CX28331/CX28332/CX28333  
1.0 Pin Description  
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit  
1.1 Pin Assignments  
Table 1-1. CX2833i-1x Pin Definitions (1 of 6)  
Pin #  
Signal Name  
Description  
I/O/P  
Notes  
CX28331-1x CX28332-1x CX28333-1x  
Coaxial Line Pins  
14  
15  
6
6
RLINEP  
RLINE1P  
RLINEN  
RLINE1N  
RLINE2P  
Ch1 positive receive  
data  
I
I
Differential inputs for each channel  
from its respective receive coax  
line. The RX expects balanced  
differential inputs, usually achieved  
using a 1:1 transformer.  
7
7
Ch1 negative receive  
data  
The inputs are internally DC biased  
to 1.9 V.  
22  
14  
Ch2 positive receive  
data  
I
I
23  
15  
22  
23  
RLINE2N Ch2 negative receive  
data  
RLINE3P  
Ch3 positive receive  
data  
I
RLINE3N Ch3 negative receive  
data  
I
10  
11  
2
2
TLINEP  
TLINE1P  
TLINEN  
TLINE1N  
TLINE2P  
Ch1 positive transmit  
data  
O
Differential, coax-driver balanced  
outputs for pulse-shaped AMI  
B3ZS/HDB3 encoded waveforms  
for each channel.  
3
3
Ch1 negative transmit  
data  
O
These pins should be connected to  
the primary side of the 1:1  
transformer through two  
backmatch resistors (see Appendix  
B).  
18  
10  
Ch2 positive transmit  
data  
O
O
O
O
19  
11  
18  
19  
TLINE2N  
TLINE3P  
TLINE3N  
Ch2 negative transmit  
data  
Ch3 positive transmit  
data  
Ch3 negative transmit  
data  
100985A  
Conexant  
1-5