National Semiconductor | High-performance Analog

 

 DS25CP114   

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



  • Typical Application
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    Block Diagram
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    Typical Performance
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    ParametersValues
    Switch Size 4 x 4
    Control Interface Pin or SMBus
    Max Speed 3.125 Gbps
    IN SigCon EQ
    OUT SigCon PRe-E
    Input Compatibility LVDS/LVPECL/CML
    Output Compatibility LVDS
    Power Consumption_ 518 mW
    PowerWise Rating 4 41 mW/Gbps
    Special Features No input RT
    Temperature Min -40 deg C
    Temperature Max 85 deg C
    SupplyVoltage 3.3 Volt
    JTAG1149.1 No
    Automotive No
    Function Crosspoint
    PowerWise Yes

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    DS25CP114TSQ/NOPB


    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $8.75 each at 1K+ pcsreel
    of
    250
    DS25CP114TSQE/NOPB


    RoHS Status


    LLP
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide406
    MOUSERWorldwide250
    $8.75 each at 1K+ pcsreel
    of
    250
    DS25CP114TSQX/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 DS25CP114.

    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 DS25CP114 is located at RoHS Status.

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    DS25CP114TSQ/NOPB

    99.658
    N/A
    LLP403260DetailN/AN/A
    NS
    UZXYTTE#
    2CP114SQ
    DS25CP114TSQE/NOPB

    99.658
    LLP403260DetailN/AN/A
    NS
    UZXYTTE#
    2CP114SQ
    DS25CP114TSQX/NOPB

    99.658
    N/A
    LLP403260DetailN/AN/A
    NS
    UZXYTTE#
    2CP114SQ

    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 DS25CP114.

    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 DS25CP114 is located at RoHS Status.

    CAD Symbols and Models
    N/A
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    DS25CP114TSQBICMOS8B+036320027622922783807897
    DS25CP114TSQEBICMOS8B+036320027622922783807897
    DS25CP114TSQXBICMOS8B+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 DS25CP114.

    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 DS25CP114 is located at RoHS Status.

    [Information as of 9-Feb-2012]