THE R
參數(shù)資料
型號(hào)： XRT73L04BIV
廠商： Exar Corporation
文件頁(yè)數(shù)： 35/64頁(yè)
文件大?。?/td> 0K
描述： IC LIU E3/DS3/STS-1 4CH 144LQFP
標(biāo)準(zhǔn)包裝： 60
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 4/4
規(guī)程： DS3，E3，STS-1
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 144-LQFP
供應(yīng)商設(shè)備封裝： 144-LQFP（20x20）
包裝： 托盤
XRT73L04B
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.1
36
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 XRT73L04B, this is achieved by setting the
TXLEV_(n) input pin or bit-field to the appropriate lev-
el.
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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參數(shù)描述
XRT73L04BIV-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT73L06 制造商:EXAR 制造商全稱:EXAR 功能描述:SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73L06ES 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT73L06IB 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT73L06IB-F 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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