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CX28333-1X 参数 Datasheet PDF下载

CX28333-1X图片预览
型号: CX28333-1X
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: 电信集成电路PC
文件页数/大小: 68 页 / 549 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
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1.0 Pin Description  
CX28331/CX28332/CX28333  
1.1 Pin Assignments  
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit  
Table 1-1. CX2833i-1x Pin Definitions (2 of 6)  
Pin #  
Signal Name  
Description  
I/O/P  
Notes  
CX28331-1x CX28332-1x CX28333-1x  
Digital Data Pins  
54  
55  
68  
69  
33  
32  
68  
69  
54  
55  
33  
32  
RPOS/  
RNRZ  
Ch1 receive Positive rail  
or NRZ data  
O
Resynchronized receive data  
intended to be strobed out by the  
corresponding RCLK.  
RPOS1/  
RNRZ1  
When ENDECDIS = 1, these outputs  
are positive and negative AMI data  
(RPOS and RNEG).  
RNEG/  
RLCV  
Ch1 receive Negative rail  
or line code violation  
O
RNEG1/  
RLCV1  
When ENDECDIS = 0, these outputs  
are decoded NRZ data (RNRZ) and  
line code violation (RLCV). A line  
code violation is indicated when  
RLCV = 1.  
RPOS2/  
RNRZ2  
Ch2 receive Positive rail  
or NRZ data  
O
O
O
O
O
RNEG2/  
RLCV2  
Ch2 receive Negative rail  
or line code violation  
See notes on the ENDECDIS pin in  
the Control Signals section.  
RPOS3/  
RNRZ3  
Ch3 receive Positive rail  
or NRZ data  
RNEG3/  
RLCV3  
Ch3 receive Negative rail  
or line code violation  
53  
49  
67  
34  
67  
53  
34  
RCLK  
RCLK1  
RCLK2  
RCLK3  
Receive clock Ch1  
Recovered clock for each channel  
receiver, intended for strobing the  
corresponding RDAT into the  
following framer or logic.  
Receive clock Ch2  
Receive clock Ch3  
O
O
I
TPOS/  
TNRZ  
Ch1 transmit Positive  
rail or NRZ data  
Synchronized transmit data  
intended to be strobed in by the  
corresponding TCLK.  
48  
63  
64  
38  
37  
63  
64  
49  
48  
38  
37  
TPOS1/  
TNRZ1  
When ENDECDIS = 1, these inputs  
are expected to be positive and  
negative AMI data (TPOS and  
TNEG).  
TNEG/  
NC  
Ch1 transmit Negative  
rail or no connect data  
I
TNEG1/  
NC1  
When ENDECDIS = 0, these inputs  
are expected to be uncoded NRZ  
data (TNRZ) and no connects (NC).  
TPOS2/  
TNRZ2  
Ch2 transmit Positive or  
NRZ data  
I
I
I
I
TNEG2/  
NC2  
Ch2 transmit Negative  
rail or no connect data  
See notes on the ENDECDIS pin in  
the Control Signals section.  
TPOS3/  
TNRZ3  
Ch3 transmit Positive or  
NRZ data  
TNEG3/  
NC3  
Ch3 transmit Negative  
rail or no connect data  
1-6  
Conexant  
100985A  
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