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參數(shù)資料
| 型號(hào)： | XRT59L91 |
| 廠商： | Exar Corporation |
| 英文描述： | Single-Chip E1 Line Interface Unit(單片E1 線接口單元) |
| 中文描述： | 單芯片E1線路接口單元（單片素E1線接口單元） |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 292K |
| 代理商： | XRT59L91 |
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EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
·
(510) 668-7000
·
FAX (510) 668-7017
Rev. P2.00
XRT59L91
Single-Chip E1
Line Interface Unit
October 1999-1
Preliminary
FEATURES
l
Complete E1 (CEPT) line interface unit
(Transmitter and Receiver)
l
Generates transmit output pulses that are
compliant with the ITU-T G.703 Pulse Template
for 2.048Mbps (E1) rates
l
On-Chip Pulse Shaping for both 75
W
and 120
W
Line Drivers
l
Receiver can either be transformer or capaci-
tively-coupled to the line
l
Detects and Clears LOS (Loss of Signal) per
ITU-T G.775
l
Compliant with the ITU-T G.823 Jitter Tolerance
Requirements
l
Compliant with the ITU-T G.703 EOS Over-
voltage protection requirements
GENERAL DESCRIPTION
The XRT59L91 is an optimized single-chip analog 3.3V
E1 line interface unit (LIU) fabricated using low power
CMOS technology. The LIU IC consists of both a
Transmitter and a Receiver function. The Transmitter
accepts a TTL or CMOS level signal from the Terminal
Equipment; and outputs this data to the line via bipolar
pulses that are compliant to the ITU-T G.703 pulse
template for E1. The Receiver accepts an attenuated
bipolar line signal (from the remote terminal equipment)
and outputs this data to the (near-end) terminal equip-
ment via CMOS level signals.
ORDERING INFORMATION
Part No.
Package
Operating
Temperature Range
-40°C to +85°C
XRT59L91ID
16 LD JEDEC SOIC (300 mil)
l
Supports both Local- and Remote-Loop back
Operations
l
Logic Inputs accept either 3.3V or 5.0V levels
l
Operates over the Industrial Temperature Range
l
Ultra Low Power Dissipation
l
+3.3V Supply Operation
APPLICATIONS
l
PDH Multiplexers
l
SDH Multiplexers
l
Digital Cross-Connect Systems
l
DECT (Digital European Cordless Telephone)
Base Stations
l
CSU/DSU Equipment.
l
Test Equipment
The receiver input can be transformer or capacitively-
coupled to the line. The receiver input is transformer-
coupled to the line, using the 2:1 step-down trans-
former. The transmitter is coupled to the line using a
1:2 step-up transformer. This same configuration is
applicable for both balanced (120
W
) and unbalanced
(75
W
) interfaces.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT59L921 | TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT |
| XRT59L921IB | TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT |
| XRT6164A | Digital Line Interface Transceiver |
| XRT6164A_07 | Digital Line Interface Transceiver |
| XRT6164AID | Digital Line Interface Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT59L91ES | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 1 CH E1 AFE 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 |
| XRT59L91ID | 制造商:Exar Corporation 功能描述: |
| XRT59L91ID-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3.3V or 5V Sngl E1 temp -45 to 85C 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 |
| XRT59L91IDTR-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI SNGLCHANNELE1LIU 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 |
| XRT59L921 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT |
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