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DS2148TN-T, DS2149, DS2149Q

Table of contents:
Info of DS2148TN-T
Info of DS2149
Info of DS2149Q

DS2148TN-T, DS2149, DS2149Q Selling Leads, Datasheet

MFG:MAXIM Package Cooled:PLCC-28 D/C:2

DS2148TN-T, DS2149, DS2149Q Datasheet download

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Part Number: DS2148TN-T

MFG: MAXIM

Package Cooled: PLCC-28

D/C: 2

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DS2149 General Description

The DS2149 is a fully integrated LIU for longhaul or short-haul T1 applications over twistedpair installations. It interfaces to two twisted-pair lines—one pair for transmit and one pair for receive through an appropriate network interface. The device can be configured for control through software or hardware mode.Software control is accomplished over a serial port, in hardware mode; individual pin settings allow standalone operation. The device provides a precise, crystal-less jitter attenuator that can be placed in either the transmit or receive path.

DS2149 Maximum Ratings

Voltage Range on Any Pin Relative to Ground ..........-1.0V to +6.0V
Operating Temperature Range for DS2149QN .....-40°C to +85°C
Storage Temperature Range .............................-55°C to +125°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device

DS2149 Features

·Fully Integrated Line Interface Unit (LIU)
·Pin Compatible with LevelOne LXT362
·Supports Both Long Haul and Short Haul
·Crystal-Less Jitter Attenuator
·Jitter Attenuator Programmable for Transmit or Receive Path
·Meets ANSI T1.102, T1.403, T1.408, and AT&T 62411
·Usable Receive Sensitivity of 0dB to -36dB That Allows the Device to Operate on 0.63mm (22AWG) Cables Up to 6k Feet in Length
·Five Line Build-Out Settings for Short-Haul Applications
·Four CSU Filters from 0dB to -22.5dB
·Transmit/Receive Performance Monitors with Driver-Fail, Monitor-Open, and Lossof-Signal Outputs
·Bipolar or NRZ Interface
·Programmable B8ZS Encoder/Decoder
·QRSS Generator/Detector
·Local, Remote, and Analog Loopbacks
·Generates and Detects In-Band Loop-Up and Loop-Down Codes
·Serial Interface Provides Access to Control Registers

DS2149 Typical Application

·Routers
·Data Service Units (DSUs)
·Channel Service Units (CSUs)
·Muxes
·Switches
·Channel Banks
·T1/E1 Test Equipment

DS2149 Connection Diagram

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