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3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit

3.3V E1/T1/J1 Short-Haul 16-Port Line Interface Unit Provides 16 Independent Receivers and Transmitters in a Single BGA Package

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 16 E1, T1, or J1 Short-Haul Line Interface Units
  • Independent E1, T1 or J1 Selections
  • Fully Internal Impedance Match Requires No External Resistors
  • Software-Selectable Transmit and Receive-Side Impedance Match
  • Crystal-Less Jitter Attenuator
  • Selectable Single-Rail and Dual-Rail Mode and AMI or HDB3/B8ZS Line Encoding and Decoding
  • Detection and Generation of AIS
  • Digital/Analog Loss of Signal Detection as per T1.231, G.775 and ETS 300 233
  • External Master Clock Can Be Multiple of 2.048MHz or 1.544MHz for T1/J1 or E1 Operation; This Clock Will Be Internally Adapted for T1 or E1 Usage
  • Receiver Signal Level Indicator from -2.5dB to -20dB in 2.5dB Increments
  • Two Built-In BERT Testers for Diagnostics
  • 8-Bit Parallel Interface Support for Intel or Motorola Mode or a 4-Wire Serial Interface
  • Transmit Short-Circuit Protection
  • G.772 Nonintrusive Monitoring
  • Receive Monitor Mode Handles Combinations of 14dB to 20dB of Resistive Attenuation Along with 12dB to 30dB of Cable Attenuation
  • Specification Compliance to the Latest T1 and E1 Standards—ANSI T1.102, AT&T Pub 62411, T1.231, T1.403, ITU-T G.703, G.742, G.775, G.823, ETS 300 166, and ETS 300 233
  • Single 3.3V Supply with 5V Tolerant I/O
  • JTAG Boundary Scan as Per IEEE 1149.1

Applications/Uses

  • ATM and Frame Relay Equipment
  • E1/T1/J1 LAN/WAN Routers
  • E1/T1/J1 Multiplexer and Channel Banks
  • ISDN Primary Rate Interface
  • T1 Digital Cross-Connects
  • Wireless Base Stations

Description

The DS26324 is a 16-channel short-haul line interface unit (LIU) that supports E1/T1/J1 from a single 3.3V power supply. A wide variety of applications are supported through internal impedance matching. A single bill of material can support E1/T1/J1 that requires no external termination. Redundancy is supported through nonintrusive monitoring, optimal high-impedance modes and configurable 1:1 or 1+1 backup enhancements. An on-chip synthesizer generates the E1/T1/J1 clock rates by a single master clock input of various frequencies. Two clock output references are also offered. The device is offered in a 256-pin TE-CSBGA, the smallest package available for a 16-channel LIU.

Simplified Block Diagram

DS26324: Functional Diagram DS26324: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.