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參數資料
| 型號： | XRT73LC00A |
| 廠商： | Exar Corporation |
| 英文描述： | E3/DS3/STS-1 LINE INTERFACE UNIT |
| 中文描述： | E3/DS3/STS-1線路接口單元 |
| 文件頁數： | 1/53頁 |
| 文件大小： | 376K |
| 代理商： | XRT73LC00A |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
xr
PRELIMINARY
XRT73LC00A
E3/DS3/STS-1 LINE INTERFACE UNIT
AUGUST 2004
REV. P1.0.0
GENERAL DESCRIPTION
The XRT73LC00A DS3/E3/STS-1 Line Interface Unit
is a low power CMOS version of the XRT73L00A and
consists of a line transmitter and receiver integrated
on a single chip and is designed for DS3, E3 or SO-
NET STS-1 applications.
XRT73LC00A can be configured to support the E3
(34.368 Mbps), DS3 (44.736 Mbps) or the SONET
STS-1 (51.84 Mbps) rates.
In the transmit direction, the XRT73LC00A encodes
input data to either B3ZS (for DS3/STS-1 applica-
tions) or HDB3 (for E3 applications) format and con-
verts the data into the appropriate pulse shapes for
transmission over coaxial cable via a 1:1 transformer.
In the receive direction the XRT73LC00A performs
equalization on incoming signals, performs Clock Re-
covery, decodes data from either B3ZS or HDB3 for-
mat, converts the receive data into TTL/CMOS for-
mat, checks for LOS or LOL conditions and detects
and declares the occurrence of line code violations.
The XRT73LC00A also contains a 4-Wire Micropro-
cessor Serial Interface for accessing the on-chip
Command registers.
FEATURES
Incorporates an improved Timing Recovery circuit
and is pin and functional compatible to XRT73L00A
Meets E3/DS3/STS-1 Jitter Tolerance Require-
ments
Full Loop-Back Capability
Transmit and Receive Power Down Modes
Full Redundancy Support
Contains a 4-Wire Microprocessor Serial Interface
Uses Minimum External components
Low Power CMOS Design
Single +3.3V Power Supply
5 V Tolerant pins
-40°C to +85°C Operating Temperature Range
Available in a 44 pin TQFP package
APPLICATIONS
Interfaces to E3, DS3 or SONET STS-1 Networks
CSU/DSU Equipment
PCM Test Equipment
Fiber Optic Terminals
Multiplexers
F
IGURE
1. B
LOCK
D
IAGRAM
OF
THE
XRT73LC00A
AGC/
Equalizer
Serial
Processor
Interface
Peak
Detector
LOS Detector
Slicer
Clock
Recovery
Data
Recovery
Invert
Loop MUX
HDB3/
B3ZS
Decoder
LOSTHR
SDI
SDO/(LCV)
SClk
CS
REGRESET
RTIP
RRING
REQDIS
Device
Monitor
MTIP
MRING
DMO
Transmit
Logic
Duty Cycle Adjust
TTIP
TRING
Pulse
Shaping
HDB3/
B3ZS
Encoder
E3
STS-1/DS3
Host/(HW)
RLOL EXCLK
ICT
RCLKINV
Tx
Control
DR/SR
RLOS
LLB
RLB
ENDECDIS
TAOS
TPDATA
TNDATA
TClk
TXLEV
TXOFF
RCLK1
RNEG
RPOS
LCV/(RCLK2)
相關PDF資料 |
PDF描述 |
|---|---|
| XRT73LC00AIV | E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73LC03A | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC03AIV | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC04A | 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC04AIV | 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT73LC00A_08 | 制造商:EXAR 制造商全稱:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73LC00AES | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT73LC00AIV | 功能描述:外圍驅動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT73LC00AIV-F | 功能描述:外圍驅動器與原件 - PCI 1-Ch DS3, E3, SONET RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT73LC00AIVTR | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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