National Semiconductor | High-performance Analog

 

 DS25CP104A   

3.125 Gbps 4x4 LVDS Crosspoint Switch with Transmit Pre-Emphasis and Receive Equalization from the PowerWise® Family
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Features

  • DC - 3.125 Gbps low jitter, low skew, low power operation
  • Pin and SMBus configurable, fully differential, non-blocking architecture
  • Pin (two levels) and SMBus (four levels) selectable pre-emphasis and equalization eliminate ISI jitter
  • Wide Input Common Mode Range enables easy interface to CML and LVPECL drivers
  • ^LOS circuitry detects open inputs fault condition
  • On-chip 100Ω input and output termination minimizes insertion and return losses, reduces component count and minimizes board space. The DS25CP114 eliminates the on-chip input termination for added design flexibility.
  • 8 kV ESD on LVDS I/O pins protects adjoining components
  • Small 6 mm x 6 mm LLP-40 space saving package
  • Description

    The DS25CP104A and DS25CP114 are 3.125 Gbps 4x4 LVDS crosspoint switches optimized for high-speed signal routing and switching over lossy FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The non-blocking architecture allows connections of any input to any output or outputs. The switch configuration can be accomplished via external pins or the System Management Bus (SMBus) interface.

    The DS25CP104A and DS25CP114 feature four levels (Off, Low, Medium, High) of transmit pre-emphasis (PE) and four levels (Off, Low, Medium, High) of receive equalization (EQ) settable via the SMBus interface. Off and Medium PE levels and Off and Low EQ levels are settable with the external pins. In addition, the SMBus circuitry enables the loss of signal ( ^LOS) monitors that can inform a system of the presence of an open inputs condition (e.g. disconnected cable).

    Wide input common mode range allows the switch to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires a minimal space on the board while the flow-through pinout allows easy board layout. On the DS25CP104A each differential input and output is internally terminated with a 100Ω resistor to lower return losses, reduce component count and further minimize board space. For added design flexibility the 100Ω input terminations on the DS25CP114 have been eliminated. This enables a designer to build custom crosspoint configurations and distribution circuits that require a limited multidrop signaling topology.


    Applications

  • SD/HD/3G HD SDI Routers
  • OC-48 / STM-16
  • InfiniBand and FireWire
  • Also Recommended
    DS10CP154A1.5 Gbps 4 X 4 Crosspoint
    DS25CP1023.125 Gbps 2 X 2 Crosspoint



    Typical Application
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    Block Diagram
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    Typical Performance
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    Parameters / ValuesDS25CP104A DS10CP154A DS25CP102
    Switch Size4 x 4 4 x 4 2 x 2
    Control InterfacePin or SMBus Pin or SMBus Pin Selectable
    Max Speed3.125 Gbps 1.5 Gbps 3.125 Gbps
    IN SigConEQ EQ
    OUT SigConPre-E Pre-E
    Input CompatibilityLVDS/LVPECL/CML LVDS/LVPECL/CML LVDS/LVPECL/CML
    Output CompatibilityLVDS LVDS LVDS
    Power Consumption_518 mW 380 mW 254 mW
    PowerWise Rating 441 mW/Gbps 64 mW/Gbps 41 mW/Gbps
    Temperature Min-40 deg C -40 deg C -40 deg C
    Temperature Max85 deg C 85 deg C 85 deg C
    SupplyVoltage3.3 Volt 3.3 Volt 3.3 Volt
    JTAG1149.1No No No
    FunctionCrosspoint Crosspoint Crosspoint
    PowerWiseYes Yes Yes
    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    DS25CP104ATSQ/NOPB


    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide234
    AVNET-EMWorldwide204
    DIGI-KEYWorldwide346
    FARNELLEurope and Asia234
    MOUSERWorldwide250
    NEWARKAmericas234
    TAYLORAmericas234
    $8.75 each at 1K+ pcsreel
    of
    250
    DS25CP104ATSQX/NOPB


    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $8.75 each at 1K+ pcsreel
    of
    2500

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DS25CP104A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DS25CP104A is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    DS25CP104EVK/NOPB

    DS25CP104EVK Documentation
    Preliminary
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $195.00 each1

    Description:

    The DS25CP104EVK is an evaluation kit designed for demonstrating performance of DS25CP104, a 3.125 Gbps 4x4 LVDS Crosspoint Switch with Transmit Pre-emphasis and Receive Equalization. The evaluation kit is comprised of the DS25CP104 with its associated input and output equalization, a USB to SMBus conversion circuit to control the SMBus with a PC, and three FR4 striplines (15" (38.1cm), 30" (76.2cm), and 60" (152.4cm)) to exercise the devices` signal conditioning features and equalization).

    Contents:




    National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

    Lead Free product status is available through the search tool located here

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    DS25CP104ATSQ/NOPB

    99.658
    LLP403260DetailDownloadN/A
    NS
    UZXYTTE#
    2CP104AS
    DS25CP104ATSQX/NOPB

    99.658
    LLP403260DetailDownloadN/A
    NS
    UZXYTTE#
    2CP104AS

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DS25CP104A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DS25CP104A is located at RoHS Status.

    Design Tools
    TitleSizeDate
    DS25CP104 in 3G SDI Router Application  

    CAD Symbols and Models
    Download DS25CP104A CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    DS25CP104ATSQBICMOS8B+036320027622922783807897
    DS25CP104ATSQXBICMOS8B+036320027622922783807897

    Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

    For more information on Reliability Metrics, please click here.


    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for DS25CP104A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for DS25CP104A is located at RoHS Status.

    Top 10 Signaling Challenges
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    12.5 Gbps Repeater/Retimer Family Overview
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    DS110DF410 Advanced Low-Power Retimer with DFE Demo
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    Top 10 Signaling Challenges
    Date: 2009-03-10
    Length: 00:40:05
    12.5 Gbps Repeater/Retimer Family Overview
    Date: 2012-01-19
    Length: 00:04:30
    DS110DF410 Advanced Low-Power Retimer with DFE Demo
    Date: 2012-01-19
    Length: 00:02:49
    [Information as of 9-Feb-2012]