DS26528

Octal T1/E1/J1 Transceiver

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Status Explanations for product status codes

Active: In Production.

Description

The DS26528 is a single-chip 8-port framer and line interface unit (LIU) combination for T1, E1, and J1 applications. Each channel is independently configurable, supporting both long-haul and short-haul lines.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 9 (PDF, 1.9MB)
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Errata DS26528 26528A1.pdf
Errata DS26528 26528A2.pdf
Errata DS26528 26528A3.pdf
Errata DS26528 26528A4.pdf

Key Features

  • Eight Complete T1, E1, or J1 Long-Haul/Short-Haul Transceivers (LIU plus Framer)
  • Independent T1, E1, or J1 Selections for Each Transceiver
  • Internal Software-Selectable Transmit- and Receive-Side Termination for 100Ω T1 Twisted Pair, 110Ω J1 Twisted Pair, 120Ω E1 Twisted Pair, and 75Ω E1 Coaxial Applications
  • Crystal-Less Jitter Attenuator can be Selected for Transmit or Receive Path; Jitter Attenuator Meets ETS CTR 12/13, ITU-T G.736, G.742, G.823, and AT&T Pub 62411
  • External Master Clock can be Multiple of 2.048MHz or 1.544MHz for T1/J1 or E1 Operation; This Clock is Internally Adapted for T1 or E1 Usage in the Host Mode
  • Receive-Signal Level Indication from -2.5dB to -36dB in T1 Mode and -2.5dB to -44dB in E1 Mode in Approximate 2.5dB Increments
  • Transmit Open- and Short-Circuit Detection
  • LIU LOS in Accordance with G.775, ETS 300 233, and T1.231
  • Transmit Synchronizer
  • Flexible Signaling Extraction and Insertion Using Either the System Interface or Microprocessor Port
  • Alarm Detection and Insertion
  • T1 Framing Formats of D4, SLC-96, and ESF
  • J1 Support
  • E1 G.704 and CRC-4 Multiframe
  • T1-to-E1 Conversion
 

Applications/Uses

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

Key Specifications:

T/E Carrier & Packetized Products
Part Number Transmission Standard Functions Channels In-to-Out Clocks
(MHz)
VSUPPLY
(V)
EV Kit Package/Pins Smallest Available Pckg.
(mm2)
Budgetary Price
max w/pins See Notes
DS26528  T1/E1/J1 Framer + LIU 8 External Master Clock can be a multiple of 1.544 or 2.048 3.3 Yes
CSBGA/256
289 $44.29 @1k
See All T/E Carrier & Packetized Products (99)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

DS26528: Functional Diagram
Functional Diagram

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Information Index

Rev 9; 2007-12-05
This page last modified: 2009-10-07




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