National Semiconductor | High-performance Analog

 

 LMH1980   

Auto-Detecting SD/HD/PC Video Sync Separator
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Features

  • Analog video sync separation for NTSC, PAL, 480I/P, 576I/P, 720P, 1080I/P/PsF, and many VESA-compatible timing formats
  • Composite Video (CVBS), S-Video (Y/C), and Component Video (YPBPR/GBR) and PC Graphics (RGsB) interfaces
  • SD/PC Bi-level sync & HD tri-level sync compatible
  • Composite, Horizontal, and Vertical Sync outputs
  • Burst/Back Porch Timing, Odd/Even Field, and HD Detect Flag outputs
  • Automatic video format detection
  • Fixed-level sync slicing for video inputs from 0.5 to 2 VPP
  • 3.3V to 5V supply operation
  • Description

    The LMH1980 is an auto-detecting SD/HD/PC video sync separator ideal for use in a wide range of video applications, such as automotive LCD monitors, video capture & editing devices, surveillance & security equipment, and machine vision and inspection systems.

    The LMH1980 accepts an analog video input signal with either bi-level or tri-level sync and automatically detects the video format, eliminating the need for external RSET resistor adjustment required by other sync separators (e.g.: LM1881). The outputs provide timing signals in CMOS logic, including Composite, Horizontal, and Vertical Syncs, Burst/Back Porch Timing, and Odd/Even Field outputs. The ^HD flag output (pin 5) provides a logic low signal only when a valid HD video input with tri-level sync is detected. The ^HD flag can be used to disable an external switch-controlled SD chroma filter when HD video is detected, or enable it when SD video is detected. For non-standard video with bi-level sync and without vertical serration pulses, a default vertical sync pulse will be output and no horizontal sync pulses will be output during the vertical sync interval.

    The LMH1980 is available in a space-saving 10-ld. Mini-SO Package (MSOP) and operates over a temperature range of −40°C to +85°C.


    Applications

  • Consumer, Professional, Automotive & Industrial Video
  • Video Capture, Editing, and Processing
  • Genlock Circuits
  • Surveillance & Security Video Systems
  • Set-Top Boxes (STB) & Digital Video Recorders (DVR)
  • LCD / Plasma Displays and Video Projectors
  • Machine Vision and Inspection Systems
  • Video Trigger Oscilloscopes and Waveform Monitors
  • Also Recommended
    LMH1981For Lower Jitter, Higher Performance

    Connection Diagram
    click for larger image

    Pinout

    Parameters / ValuesLMH1980 LMH1981
    FunctionSync Separator Sync Separator
    Supported Video FormatsNTSC , SECAM , SD/PC bi-level and HD tri-level sync, 720p , 1080i/p , PC Sync on Green (VESA), 576i/p , 480i/p , PAL SD bi-level and HD tri-level sync, NTSC , 720p , 1080i/p , 576i/p , 480i/p , PAL
    Supply Voltage3.3 Volt 3.3 Volt
    OtherSupply Voltage3.3V to 5V 3.3V to 5V
    Temperature Min-40 deg C -40 deg C
    Temperature Max85 deg C 85 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator746
    Kbytes
    6-Jul-07日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1618: Application Note 1618 LMH1980 Evaluation Board Instruction Manual674
    Kbytes
    19-Jul-07日本語
    AN-1681: Application Note 1681 Design Migration from the LM1881 to the LMH1980143
    Kbytes
    2-Aug-07日本語
    AN-1841: Application Note 1841 LMH1982 Evaluation Board User Guide913
    Kbytes
    21-May-08 中文

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH1980MM/NOPB


    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1738
    FARNELLEurope and Asia397
    MOUSERWorldwide897
    NEWARKAmericas613
    $1.95 each at 1K+ pcsreel
    of
    1000
    LMH1980MMX/NOPB


    RoHS Status


    MINI SOIC
    Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    $1.95 each at 1K+ pcsreel
    of
    3500

    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 LMH1980.

    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 LMH1980 is located at RoHS Status.

    Part Number(s)
    (NSID)
    DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMH1980MMEVAL/NOPB

    Evaluation Board for LMH1980Full production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide1
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    $70.20 each1

    Description:

    The LMH1980 Evaluation Board can be used to test the LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator and as a reference for PCB layout design.

    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
    LMH1980MM/NOPB

    29.841
    MINI SOIC101260DetailDownloadN/A
    ZXTT
    AL4A
    LMH1980MMX/NOPB

    29.841
    MINI SOIC101260DetailDownloadN/A
    ZXTT
    AL4A

    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 LMH1980.

    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 LMH1980 is located at RoHS Status.

    CAD Symbols and Models
    Download LMH1980 CAD Symbols
     Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMH1980MMCMOS70213010015840003449464325
    LMH1980MMXCMOS70213010015840003449464325

    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 LMH1980.

    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 LMH1980 is located at RoHS Status.

    [Information as of 8-Feb-2012]