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LXT363QE Datasheet

  • LXT363QE

  • PCM TRANSCEIVER|SINGLE|T-1(DS1)|CMOS|QFP|44PIN|PLASTIC

  • 799.31KB

  • 44页

  • ETC

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LXT363
Integrated T1 LH/SH Transceiver for DS1/DSX-1 or PRI Applications
Datasheet
The LXT363 is a fully integrated, combination transceiver for T1 ISDN Primary Rate Interface
and general T1 long and short haul applications. The device operates over 22 AWG twisted-pair
cables from 0 to 6 kft and offers Line Build Outs and pulse equalization settings for all T1 Line
Interface Unit (LIU) applications.
The LXT363 features an Intel or Motorola compatible parallel port for microprocessor control.
The LXT363 incorporates advanced crystal-less digital jitter attenuation in either the transmit or
receive data path starting at 3 Hz. B8ZS encoding/decoding and unipolar or bipolar data I/O are
available. The LIU provides loss of signal monitoring and a variety of diagnostic loopback
modes.
The parallel port is ideal for applications with multiple T1 interfaces.
Applications
s
s
s
ISDN Primary Rate Interface (ISDN PRI)
CSU/NTU interface to T1 Service
T1 LAN/WAN bridge/routers
s
s
T1 Mux; Channel Banks
Digital Loop Carrier - Subscriber Carrier
Systems
Product Features
s
s
s
s
s
s
Fully integrated transceiver for Long or
Short-Haul T1 interfaces
Crystal-less digital jitter attenuation
鈥?Select either transmit or receive path
鈥?No crystal or high speed external clock
required
Meets or exceeds specifications in ANSI
T1.102, T1.403 and T1.408; and AT&T
Pub 62411
Supports 100
鈩?/div>
(T1 twisted-pair)
applications
Selectable receiver sensitivity 鈥?fully
restores the received signal after
transmission through a cable with
attenuation of either 0 to 26 dB, or 0 to
36 dB @ 772 kHz
Five Pulse Equalization Settings for T1
Short-Haul applications
s
s
s
s
s
s
s
s
Four Line Build-Outs for T1 long-haul
applications from 0 dB to -22.5 dB
Transmit/receive performance monitors
with Driver Fail Monitor Open and Loss of
Signal outputs
Selectable unipolar or bipolar data I/O and
B8ZS encoding/decoding
Line attenuation indication output in 2.9 dB
steps
QRSS generator/detector for testing or
monitoring
Local, remote, and analog loopback, plus
in-band network loopback code generation
and detection
Intel/Motorola compatible 8-bit parallel
interface for microprocessor control
Available in 28-pin PLCC, 44-pin PQFP
and 44-pin LQFP packages
As of January 15, 2001, this document replaces the Level One document
Order Number: 249034-001
known as
LXT363 鈥?Integrated T1 LH/SH Transceiver for DS1/DSX-1 or PRI Applications.
January 2001

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