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參數資料
型號: XRT83SL28IV-F
廠商: Exar Corporation
文件頁數: 1/47頁
文件大小: 0K
描述: IC LIU SH E1 8CH 144TQFP
標準包裝: 60
類型: 線路接口裝置(LIU)
驅動器/接收器數: 8/8
規程: T1,E1,J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應商設備封裝: 144-TQFP(20x20)
包裝: 托盤
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
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XRT83SL28
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
APRIL 2005
REV. 1.0.0
GENERAL DESCRIPTION
The XRT83SL28 is a fully integrated 8-channel E1
short-haul LIU which optimizes system cost and
performance by offering key design features. The
XRT83SL28 operates from a single 3.3V power
supply. The LIU features are programmed through a
standard serial microprocessor interface or hardware
control. EXAR’s LIU has patented high impedance
circuits that allow the transmitter outputs and receiver
inputs to be high impedance when experiencing a
power failure or when the LIU is powered off. Key
design features within the LIU optimize 1:1 or 1+1
redundancy and non-intrusive monitoring applications
to ensure reliability without using relays.
Additional features include TAOS for transmit and
receive, RLOS, LCV, AIS, DMO, and diagnostic
loopback modes.
APPLICATIONS
ISDN Primary Rate Interface
CSU/DSU E1 Interface
E1 LAN/WAN Routers
Public Switching Systems and PBX Interfaces
E1 Multiplexer and Channel Banks
Integrated Multi-Service Access Platforms (IMAPs)
Integrated Access Devices (IADs)
Inverse Multiplexing for ATM (IMA) Wireless Base
Stations
FIGURE 1. HOST MODE BLOCK DIAGRAM OF THE XRT83SL28
HDB3
Encoder
Jitter
Attenuator
(Rx or Tx)
Timing
Control
Tx Pulse
Shaper
HDB3
Decoder
Clock & Data
Recovery
Peak
Detector
& Slicer
Rx
Equalizer
AIS & LOS
Detector
Driver
Monitor
1 of 8 Channels
Test
Serial Microprocessor
Interface
Clock Distribution
Line
Driver
TCLK
TPOS
TNEG
RCLK
RPOS
RNEG/LCV
MC
LK
RTIP
RRING
TRING
TTIP
TxOE
ICT
Res
et
DMO
RLOS
IN
T
CS
SC
LK
SD
I
SD
O
HW
/H
os
t
Remote
Loopback
Digital
Loopback
Analog
Loopback
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