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Maxim > Products > [T/E Carrier and Packetized Communications] 
DS26504
T1/E1/J1/64KCC BITS Element


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 3.2MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Errata
  • Errata DS26504 26504A1.pdf 
  • Errata DS26504 26504B2.pdf 

    • Description
    The DS26504 is a building-integrated timing-supply (BITS) clock-recovery element. It also functions as a basic T1/E1 transceiver. The receiver portion can recover a clock from T1, E1, 64kHz composite clock (64KCC), and 6312kHz synchronization timing interfaces. In T1 and E1 modes, the Synchronization Status Message (SSM) can also be recovered. The transmit portion can directly interface to T1, E1, or 64KCC synchronization interfaces as well as source the SSM in T1 and E1 modes. The DS26504 can translate between any of the supported inbound synchronization clock rates to any supported outbound rate. The DS26504 can also accept an 8kHz as well as a 19.44MHz reference clock. A separate output is provided to source a 6312kHz clock. The device is controlled through a parallel, serial, or hardware controller port.

    An evaluation kit is available:  DS26504DK  

    Key Features   Applications/Uses
    • Transmit and Receive T1 BOC SSM Messages with Receive Message Change of State and Validation Indication
    • Transmit and Receive E1 Sa(n) Bit SSM Messages with Receive Message Change of State Indication
    • Crystal-Less Jitter Attenuator with Bypass Mode for T1 and E1 Operation
    • Fully Independent Transmit and Receive Functionality
    • Internal Software-Selectable Receive and Transmit Side Termination for 75Ω/100Ω/110Ω/120Ω/133Ω
    • Monitor Mode for Bridging Applications
    • Accepts 16.384MHz, 12.8MHz, 8.192MHz, 4.096MHz, 2.048MHz, or 1.544MHz Master Clock
    • 64kHz, 8kHz, and 400Hz Outputs in Composite Clock Mode
    • 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola
    • Serial (SPI) Control Port and Hardware Control Mode
    • Provides LOS, AIS, and LOF Indications through Hardware Output Pins
    • Fast Transmitter Output Disable through Device Pin for Protection Switching
    • IEEE 1149.1 JTAG Boundary Scan
    • 3.3V Supply with 5V Tolerant Inputs and Outputs
    • Pin and Software Compatible with the DS26502 and DS26503

    		 
  		• BITS Timing
  		• Rate Conversion

    Key Specifications:  T/E Carrier & Packetized Products
    Part Number Transmission Standard Functions Channels In-to-Out Clocks
    (MHz)    		 VSUPPLY
    (V)    		 EV Kit Package/Pins Price
    See Notes
    DS26504 
    64kHz Composite Clock - G.703 Level B
    64kHz - G.703 II.1 Japanese 64kHz Clock
    64kHz Composite Clock - GR378
    64kHz - G.703 II.2 Japanese 6312kHz Clock
    64kHz Composite Clock - G.703 Level A
    T1/E1/J1
    		 BITS Element 1
    0.008
    0.064
    1.544
    2.048
    6.312
    19.44
    		 3.3 Yes
    See Data Sheet/
    		 $16.00 @1k
    See All T/E Carrier & Packetized Products (102)

    Diagram
    DS26504: Block Diagram
    Block Diagram

    Evaluation Kits
  		• DS26504DK

    Design Guides
  		• Communications (PDF)

    Reliability Reports
  		• Reliability Report: DS26504.pdf

    Software/Models
  		• DS26504 BSDL Model
  		• DS26504 IBIS Model

    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: 1-8 of 8

    DS26504 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS26504+W    
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64+8*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS26504LNB2+  
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64+8*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS26504NW0    
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64-8*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS26504LNB2  
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64-8*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS26504L    
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64-8*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    DS26504L+  
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64+8*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS26504LN  
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64-8*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS26504LN+  
    		Active LQFP;64 pin;149 mm²
    Outline Drawing: 21-0083 (PDF)
    Land Pattern: 90-0141 (PDF)
    Use pkgcode/variation: C64+8*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• New Product Press Release 2005-07-22 

    Related Products
    DS26503 T1/E1/J1 BITS Element
    DS26502 T1/E1/J1/64KCC BITS Element
    DS26503DK T1/E1/J1 BITS Element Design Kit
    DS26502DK T1/E1/J1/64KCC Bits Element Design Kit

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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
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     Diagram 

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    2008-08-01
    This page last modified: 2009-10-06


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