National Semiconductor | High-performance Analog

 

 LMH0044   
SMPTE 292M / 259M Adaptive Cable Equalizer 		Click link to Download

Features

  • SMPTE 292M, SMPTE 344M and SMPTE 259M compliant
  • Supports DVB-ASI at 270 Mbps
  • Data rates: 125 Mbps to 1.485 Gbps
  • Equalizes up to 200 meters of Belden 1694A at 1.485 Gbps or up to 400 meters of Belden 1694A at 270 Mbps
  • Manual bypass and output mute with a programmable threshold
  • Single-ended or differential input
  • 50Ω differential outputs
  • Single 3.3V supply operation
  • 208 mW typical power consumption with 3.3V supply
  • Replaces the GS1574 and GS1574A

    • Description

    The LMH0044 SMPTE 292M / 259M adaptive cable equalizer is a monolithic integrated circuit for equalizing data transmitted over cable (or any media with similar dispersive loss characteristics). The equalizer operates over a wide range of data rates from 125 Mbps to 1.485 Gbps and supports SMPTE 292M, SMPTE 344M and SMPTE 259M.

    The LMH0044 implements DC restoration to correctly handle pathological data conditions (DC restoration may be bypassed for low data rate applications). The equalizer may be driven in either a single ended or differential configuration.

    Additional features include separate carrier detect and output mute pins which may be tied together to mute the output when no signal is present. A programmable mute reference is provided to mute the output at a selectable level of signal degradation.


    Applications

  • SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital interfaces
  • Serial digital data equalization and reception
  • Data recovery equalization

    • Also Recommended
    LMH0002▲HD/SD Cable Driver
    LMH0034▲HD/SD Equalizer (16 Pin SOIC)
    LMH0046▲HD/SD Reclocker With Dual Differential Outputs


    Typical Application

    Parameters / ValuesLMH0044 LMH0002 LMH0034 LMH0046
    Max Data Rate1485 Mbps 1485 Mbps 1485 Mbps 1485 Mbps
    SupplyVoltage3.3 Volt 3.3 Volt 3.3 Volt 3.3 Volt
    OtherSupply VoltageUndefined Undefined Undefined Undefined
    Cable Length at SD, typ400 m 400 m
    Cable Length at HD, typ200 m 200 m
    Power Consumption_208 mW 149 mW 208 mW 330 mW
    Rise/Fall Times100 ps 120 ps 100 ps 90 ps
    Temperature Min0 deg C -40 deg C 0 deg C -40 deg C
    Temperature Max85 deg C 85 deg C 85 deg C 85 deg C
    Supply Current63 mA 45 mA 63 mA 100 mA
    Output Swing0.75 Volt 0.8 Volt 0.75 Volt 0.8 Volt
    FunctionEqualizer Cable Driver Equalizer Reclocker
    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH0044SQ/NOPB

    LMH0044SQ

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide1417
    AVNET-EMWorldwide1000
    CEACAsia Pacific2000
    DIGI-KEYWorldwide2568
    FARNELLEurope and Asia1277
    KEIKONGAsia Pacific9000
    MOUSERWorldwide1000
    NEWARKAmericas1277
    RSL MICROAsia Pacific3000
    TAYLORAmericas1417
    		$12.40 each at 1K+ pcsreel
    of
    1000
    LMH0044SQE/NOPB

    LMH0044SQE

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide150
    AVNET-EMWorldwide202
    DIGI-KEYWorldwide0
    KEIKONGAsia Pacific1047
    MOUSERWorldwide250
    TAYLORAmericas150
    		$12.40 each at 1K+ pcsreel
    of
    250
    LMH0044SQX/NOPB

    LMH0044SQX

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$12.40 each at 1K+ pcsreel
    of
    4500

    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 LMH0044.

    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 LMH0044 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    SD044EVK
    		SMPTE 292M / 259M Adaptive Cable EqualizerPreliminary


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$150.00 each1



    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
    LMH0044SQ/NOPB

    LMH0044SQ
    		39.461
    39.599
    		LLP161
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    L044
    LMH0044SQE/NOPB

    LMH0044SQE
    		39.461
    39.599
    		LLP161
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    L044
    LMH0044SQX/NOPB

    LMH0044SQX
    		39.461
    39.599
    		LLP161
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    L044

    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 LMH0044.

    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 LMH0044 is located at RoHS Status.

    CAD Symbols and Models
    Download LMH0044 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMH0044SQBICMOS8B+036320027622922783807897
    LMH0044SQEBICMOS8B+036320027622922783807897
    LMH0044SQXBICMOS8B+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 LMH0044.

    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 LMH0044 is located at RoHS Status.

    [Information as of 9-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation