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LXT304ANE Datasheet

  • LXT304ANE

  • PCM TRANSCEIVER|SINGLE|CEPT PCM-30/E-1|CMOS|DIP|28PIN|PLASTI...

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LXT304A
Low-Power T1/E1 Short-Haul Transceiver with Receive JA
Datasheet
The LXT304A is a fully integrated low-power transceiver for both North American 1.544 Mbps
(T1), and International 2.048 Mbps (E1) applications. It features a constant low output
impedance transmitter allowing for high transmitter return loss in T1/E1 applications. Transmit
pulse shapes (DSX-1 or E1) are selectable for various line lengths and cable types. The
LXT304A is microprocessor controllable through a serial interface. The device provides receive
jitter attenuation starting at 3 Hz.
The LXT304A offers a variety of diagnostic features including transmit and receive monitoring.
The device incorporates an on-chip crystal oscillator, and also accepts digital inputs. It uses an
advanced double-poly, double-metal CMOS process and requires only a single +5 V power
supply.
Applications
s
s
s
s
PCM/Voice Channel Banks
Data Channel Bank/Concentrator
T1/E1 multiplexer
Digital Access and Cross-connect Systems
(DACS)
s
s
s
s
Computer to PBX interface (CPI & DMI)
High-speed data transmission lines
Interfacing Customer Premises Equipment
to a CSU
Digital Loop Carrier (DLC) terminals
Product Features
s
s
s
s
s
s
s
Low power consumption (400 mW
maximum)
40% less than the LXT300
Constant low output impedance transmitter
regardless of data pattern (3
鈩?/div>
typical)
High transmit and receive return loss
exceeds ETSI ETS 300166 and G.703
recommendations
Meets or exceeds all industry specifications
including ITU G.703, ANSI T1.403 and
AT&T Pub 62411
Compatible with most popular PCM
framers
Line driver, data recovery and clock
recovery functions
Minimum receive signal of 500 mV
s
s
s
s
s
s
s
s
s
Selectable slicer levels (E1/DSX-1)
improve SNR
Programmable transmit equalizer shapes
pulses to meet DSX-1 pulse template from
0 to 655 ft.
Local and remote loopback functions
Transmit/Receive performance monitors
with DPM and LOS outputs
Receiver jitter tolerance 0.4 UI from 40
kHz to 100 kHz
Receive jitter attenuation starting at 3 Hz
meets TBR12/13 specification
Serial control interface
Analog/digital LOS monitor per G.775
Available in 28-pin DIP or PLCC
As of January 15, 2001, this document replaces the Level One document
LXT304A 鈥?Low-Power T1/E1 Short-Haul Transceiver with Receive JA.
Order Number: 249067-001
January 2001

LXT304ANE相關(guān)型號PDF文件下載

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