參數(shù)資料
型號(hào)： XRT73LC04AIV
廠商： EXAR CORP
元件分類(lèi)： 數(shù)字傳輸電路
英文描述： 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
中文描述： DATACOM, PCM TRANSCEIVER, PQFP144
封裝： 20 X 20 MM, 1.40 MM HEIGHT, TQFP-144
文件頁(yè)數(shù)： 40/64頁(yè)
文件大?。?/td> 360K
代理商： XRT73LC04AIV
XRT73LC04A
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.1
36
3.2
The purpose of this block is to equalize the incoming
distorted signal due to cable loss. The Receive
T
HE
R
ECEIVE
E
QUALIZER
B
LOCK
Equalizer attempts to restore the shape of the line
signal so that the transmitted data and clock can be
recovered reliably.
.
3.2.1
izer
Guidelines for Setting the Receive Equal-
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 XRT73LC04A, this is achieved by setting the
TXLEV_(n) input pin or bit-field to the appropriate lev-
el.
F
IGURE
23. T
HE
T
YPICAL
A
PPLICATION
FOR
THE
S
YSTEM
I
NSTALLER
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
相關(guān)PDF資料
PDF描述
XRT73R06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R06IB SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R12 TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R12IB TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT74L73 3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT73LC04AIV-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 4-Ch DS3, E3, STS-1 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
XRT73R06 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R06ES 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
XRT73R06IB 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
XRT73R06IB-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
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