参数资料
型号: XRT73LC00AIVTR
厂商: Exar Corporation
文件页数: 1/61页
文件大小: 0K
描述: IC LIU STS1/DS3/E3 SGL 44TQFP
标准包装: 1,000
类型: 线路接口装置(LIU)
驱动器/接收器数: 1/1
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: 44-LQFP
供应商设备封装: 44-TQFP(10x10)
包装: 带卷 (TR)
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XRT73LC00A
E3/DS3/STS-1 LINE INTERFACE UNIT
MAY 2011
REV. 1.0.2
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
SONET 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
applications) or HDB3 (for E3 applications) format
and converts 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
Recovery, decodes data from either B3ZS or HDB3
format, converts the receive data into TTL/CMOS
format, checks for LOS or LOL conditions and detects
and declares the occurrence of line code violations.
The
XRT73LC00A
also
contains
a
4-Wire
Microprocessor 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
Requirements
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
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