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DS26518
8-Port T1/E1/J1 Transceiver

Latest Generation of SCTs with the Industry's Highest Port Count


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 2.1MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Errata
  • Errata DS26518 26518A1.pdf 
  • Errata DS26518 26518A2.pdf 
  • Errata DS26518 26518B1.pdf 
  • Description
    The DS26518 is an 8-port framer and line interface unit (LIU) combination for T1, E1, J1 applications. Each port is independently configurable, supporting both long-haul and short-haul lines. The DS26518 Single-Chip Transceiver (SCT) is software and pinout compatible with the 4-port DS26514. It is nearly software compatible with the DS26528 and its derivatives.

    An evaluation kit is available:  DS26518DK  

    Key Features   Applications/Uses
    • Eight Complete T1, E1, or J1 Long-Haul/Short-Haul Transceivers (LIU Plus Framer)
    • Independent T1, E1, or J1 Selections for Each Transceiver
    • Fully Internal Impedance Match, No External Resistor
    • 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
    • Hitless Protection Switching
    • Crystal-Less Jitter Attenuators 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

     
  • 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)
    Price
    max w/pins See Notes
    DS26518  T1/E1/J1 Framer + LIU 8 External Master Clock can be a multiple of 1.544 or 2.048 3.3 & 1.8 Yes
    CSBGA/256
    289 $32.00 @1k
    See All T/E Carrier & Packetized Products (102)

    Diagram
    DS26518: Functional Diagram
    Functional Diagram

    Application Notes
  • Application Note 301: Legacy T1/E1 8MHz Backplane Operation - DS26518
  • Application Note 309: Interfacing to the Fractional T1 and E1 - DS26518
  • Application Note 561: Tech Brief 7: DS2152 and DS2154 8MHz System Clock Operation - DS26518
  • Application Note 4325: Transmit Pulse Control on the DS26518 T1/E1/J1 Transceiver - DS26518

    Evaluation Kits
  • DS26518DK

    Design Guides
  • Communications (PDF)

    Reliability Reports
  • Reliability Report: DS26518.pdf

    Software/Models
  • DS26518 BSDL Model
  • DS26518 IBIS Model
  • DS26518 Cadence Concept Symbol
  • DS26518 Gerber File
  • DS26518 Orcad Logical Symbol
  • DS26518 Logical Symbol-XML Format

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    DS26518 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS26518GN+  
    Active CSBGA;256 pin;289 mm²
    Outline Drawing: 21-0315 (PDF)
    Land Pattern: 90-0271 (PDF)
    Use pkgcode/variation: X256+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS26518GN  
    Active CSBGA;256 pin;289 mm²
    Outline Drawing: 21-0315 (PDF)
    Land Pattern: 90-0271 (PDF)
    Use pkgcode/variation: X256-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

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  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Errata 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
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    2008-11-11
    This page last modified: 2009-09-04


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