Maxim DS2149 5V T1/J1 Line Interface Unit Datasheet

This document mainly introduces the features of DS2149, including support for long-distance or short-distance T1 applications, support for hardware or software control, and support for a precise crystal-less jitter attenuator

Brand: Maxim
Category: Other Electronics
Document type: Datasheet
Language: English
Pages: 32
File format: PDF
File size: 354 KB
Published: 03 July, 2012
Updated: 30 September, 2023
Model: DS2149
MD5 checksum: F81E4F9BAF0238B3800A8C1B8F54D717
PDF: Maxim DS2149 5V T1/J1 Line Interface Unit Datasheet PDF

About this manual

The DS2149 is a fully integrated Line Interface Unit (LIU) designed for long-haul or short-haul T1 applications over twisted-pair installations. It interfaces to two twisted-pair lines, one for transmit and one for receive, through an appropriate network interface. The device can be configured for control through software or hardware mode.

What's inside

Detailed Description
Operating Modes
Initialization and Reset
Register Definitions
Transmitter
Receiver
Jitter Attenuation
Hardware Mode
Software Mode
Diagnostic Mode Operation

Specifications

Supply Voltage	5V
Receive Sensitivity Range	0dB to -36dB
Line Build-Out Settings	Five settings
CSU Filters	Four filters from 0dB to -22.5dB
Interface Types	Bipolar or NRZ

Frequently asked questions

Does the DS2149 require a crystal?

No, it features a crystal-less jitter attenuator.

What receive sensitivity levels can the device support?

The device supports receive sensitivity adjustments of 0dB, -18dB, -26dB, or -36dB.

What line build-out settings are available?

The device can generate line build-outs of 0dB, -7.5dB, -15dB, and -22.5dB.

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