参数资料
| 型号： | XRT73LC03AIV |
| 厂商： | Exar Corporation |
| 文件页数： | 32/61页 |
| 文件大小： | 0K |
| 描述： | IC LIU E3/DS3/STS-1 3CH 120LQFP |
| 标准包装： | 72 |
| 类型： | 线路接口装置（LIU） |
| 驱动器/接收器数： | 3/3 |
| 规程： | DS3，E3，STS-1 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 120-LQFP |
| 供应商设备封装： | 120-LQFP（14x20） |
| 包装： | 托盘 |
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XRT73LC03A
36
3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.4
3.2
THE RECEIVE EQUALIZER BLOCK
The purpose of this block is to equalize the incoming
distorted signal due to cable loss. The Receive
Equalizer attempts to restore the shape of the line
signal so that the transmitted data and clock can be
recovered reliably.
.
3.2.1
Guidelines for Setting the Receive Equal-
izer
This data sheet presents guidelines for setting the
Receive Equalizer, for the following conditions.
1. If the overall cable length, from the local Receiv-
ing Terminal to the Remote Transmitting Terminal
is NOT known.
2. If the overall cable length, from the Local Receiv-
ing Terminal to the remote Transmitting Terminal
is known.
3.2.1.1
If the Overall Cable Length is NOT
Known
This section presents recommendations on what
state to set the Receive Equalizer when the overall
cable-length, from the local Receiving Terminal to the
remote Transmitting Terminal is NOT known. For
DS3, STS-1 and E3 applications, enable the Receive
Equalizer by setting either the REQEN_(n) input pin
“high” or the REQEN_(n) bit-field to “1”. The remain-
der of this section provides an explanation why we
recommend enabling the Receive Equalizer for these
applications.
3.2.1.1.1
The Use of the Receive Equalizer in a
Typical DS3 or STS-1 Application
Most System Manufacturers of equipment supporting
DS3 and STS-1 lines, interface their equipment to ei-
ther a DSX-3 or STSX-1 Cross-Connect. While in-
stalling their equipment the Transmit Line Build-Out
circuit is set to the proper setting that makes the
transmit output pulse compliant with the Isolated
DSX-3 or STSX-1 Pulse Template requirements. For
the XRT73LC03A device, this is achieved by setting
the TXLEV_(n) input pin or bit-field to the appropriate
level.
FIGURE 23. THE TYPICAL APPLICATION FOR THE SYSTEM INSTALLER
Digital Cross-Connect
System
Transmitting
Terminal
Receiving
Terminal
0 to 450 feet of Cable
Pulses that are
compliant to the
Isolated DSX-3 or
STSX-1 Pulse Template
Requirement
0 to 450 feet of
Cable
DSX-3
or
STSX-1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT73LC03AIVF | 制造商:Exar Corporation 功能描述:Line Interface Unit 51.84Mbps DS3/E3/STS-1 Serial 120-Pin LQFP |
| XRT73LC03AIV-F | 功能描述:外围驱动器与原件 - PCI 3-Ch DS3, E3, STS-1 RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT73LC04A | 制造商:EXAR 制造商全称:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC04A_08 | 制造商:EXAR 制造商全称:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC04AES | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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