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LXT351

Features: `Fully integrated transceivers for Short-Haul T1 or E1 interfaces`Crystal-less digital jitter attenuation -Select either transmit or receive path -No crystal or high speed external clock required`Meet or exceed specifications in ANSI T1.403 and T1.408; ITU I.431, G.703, G.736, G.775 and ...

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SeekIC No. : 004403642 Detail

LXT351: Features: `Fully integrated transceivers for Short-Haul T1 or E1 interfaces`Crystal-less digital jitter attenuation -Select either transmit or receive path -No crystal or high speed external clock r...

LXT351 Data Sheet

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Part Number:
LXT351
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/29

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Product Details

Description



Features:

 `Fully integrated transceivers for Short-Haul T1 or E1 interfaces
 `Crystal-less digital jitter attenuation
    -Select either transmit or receive path
    -No crystal or high speed external clock required
 `Meet or exceed specifications in ANSI T1.403 and T1.408; ITU I.431, G.703, G.736, G.775 and G.823; ETSI 300-166 and 300-233; and AT&T Pub 62411
 `Supports 75 (E1 coax), 100 (T1 twisted-pair) and 120 (E1 twisted-pair) applications
 `Fully restores the received signal after transmission through a cable with attenuation of 18dB, at 1024 kHz
 `Five pulse equalization settings for T1 short-haul applications
 `Transmit/receive performance monitors with Driver Fail Monitor Open (DFM) and Loss of Signal (LOS) outputs
 `Selectable unipolar or bipolar data I/O and B8ZS/HDB3 encoding/decoding
 `QRSS generator/detector for testing or monitoring
 `Output short circuit current limit protection
 `Local, remote and analog loopback capability
 `Compatible with Intel's LXT360/361 T1/E1 long haul/short haul transceiver (Universal LIU)
 `Multiple register parallel interface compatible with both Intel and Motorola microprocessors
 `Available in 28-pin PLCC and 44-pin PQFP packages


Application

 · SONET/SDH tributary interfaces
 · Digital cross connects
 · Public/private switching trunk line interfaces
 · Microwave transmission systems


Pinout

Connection Diagram


Specifications

Parameter
Sym
Min
Max
Unit
DC supply (reference to GND)
VCC, TVCC
6.0
V
Input voltage, any pin 1
VIN
GND - 0.3 V
VCC + 0.3 V
V
Input current, any pin 2
IIN
- 10
10
mA
Storage Temperature
TSTG
-65
150
Caution: Exceeding these values may cause permanent damage.
Caution: Functional operation under these conditions is not implied.
Caution: Exposure to maximum rating conditions for extended periods may affect device reliability.
1. TVCC and VCC must not differ by more than 0.3 V during operation. TGND and GND must not differ by more than 0.3 V during operation.
2. Transient currents of up to 100 mA will not cause SCR latch-up. TTIP, TRING, TVCC, and TGND can withstand continuous currents of up to 100 mA.



Description

The LXT351 is a full-featured, fully-integrated transceiver for T1 and E1 short-haul applications. The LXT 351 is software switchable between T1 and E1 operation, and offers pulse equalization settings for all short-haul T1 and E1 line interface (LIU) applications.

The LXT351 offers an Intel/Motorola compatible parallel port for microprocessor control. The device incorporates advanced crystal-less digital jitter attenuation in either the transmit or receive data path starting at 3 Hz. B8ZS/HDB3 encoding/decoding and unipolar or bipolar data I/O are selectable. Loss of signal monitoring and a variety of diagnostic loopback modes can also be selected.




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