DS2149 MAXIM [Maxim Integrated Products], DS2149 Datasheet

DS2149

Manufacturer Part Number

DS2149

Description

5V T1/J1 Line Interface Unit

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.DS2149.pdf (32 pages)

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Part Number

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Quantity

Price

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Meier Automation Equipment Co., Limited

Part Number:

DS2149A

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Part Number:

DS2149Q

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Maxim Integrated

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Part Number:

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Part Number:

DS2149Q+

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MAXIM/美信

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Part Number:

DS2149Q+T&R

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Part Number:

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DS2149QN

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Current page: 1 of 32
Download datasheet (579Kb)

GENERAL DESCRIPTION

The DS2149 is a fully integrated LIU for long-

haul or short-haul T1 applications over twisted-

pair installations. It interfaces to two twisted-pair

lines—one pair for transmit and one pair for

receive

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.

APPLICATIONS

Routers

Data Service Units (DSUs)

Channel Service Units (CSUs)

Muxes

Switches

Channel Banks

T1/E1 Test Equipment

PIN CONFIGURATION

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

www.maxim-ic.com

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DS2149

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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

§ Meets ANSI T1.102, T1.403, T1.408, and

§ Usable Receive Sensitivity of 0dB to -36dB

§ Five Line Build-Out Settings for Short-Haul

§ Four CSU Filters from 0dB to -22.5dB

§ Transmit/Receive Performance Monitors

§ Bipolar or NRZ Interface

§ Programmable B8ZS Encoder/Decoder

§ QRSS Generator/Detector

§ Local, Remote, and Analog Loopbacks

§ Generates and Detects In-Band Loop-Up and

§ Serial Interface Provides Access to Control

ORDERING INFORMATION

DS2149Q

DS2149QN

5V T1/J1 Line Interface Unit

or Receive Path

AT&T 62411

That Allows the Device to Operate on

0.63mm (22AWG) Cables Up to 6k Feet in

Length

Applications

with Driver-Fail, Monitor-Open, and Loss-

of-Signal Outputs

Loop-Down Codes

Registers

PART

-40°C to +85°C

TEMP RANGE

0°C to +70°C

DEMO KIT AVAILABLE

PIN-PACKAGE

28 PLCC

DS2149

REV: 113004

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