National Semiconductor | High-performance Analog

 

 LM4936   
Stereo 2W Audio Power Amplifiers with Volume Control and Selectable Control Interface (SPI or I2C) 		Click link to Download

Features
  • Selectable SPI or I2C Control Interface
  • System Beep Detect
  • Stereo switchable bridged/single-ended power amplifiers
  • Selectable internal/external gain and bass boost
  • "Click and pop" suppression circuitry
  • Thermal shutdown protection circuitry
  • Headphone Sense

    • Description

    The LM4936 is a monolithic integrated circuit that provides volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4 with less than 1% THD or 2.2W into 3 with less than 1% THD.

    Boomer® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4936 incorporates a SPI or I2C Control Interface that runs the volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost. All of the LM4936's features (i.e. SD, Mode, Mute, Gain Sel) make it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

    The LM4936 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

    Key Specification

    PO at 1% THD+N

    		 

    into 3

    2.2W (typ)

    into 4

    2.0W (typ)

    into 8

    1.25W (typ)

    Single-ended mode - THD+N at 90mW into 32

    1%(typ)

    Shutdown current

    0.7µA (typ)


    Applications

  • Portable and Desktop Computers
  • Multimedia Monitors
  • Portable Radios, PDAs, and Portable TVs




    • Typical Application
    click for larger image


    		Connection Diagram
    *click for larger image



    Typical Performance
    *click for larger image


     

    ParametersValues
    Power @ 5V 8Ohms, 1% THD 1.25 Watt
    Speaker THD+N 0.06 %
    HP THD+N 0.02 %
    Speaker PSRR 55 dB
    HP PSRR 57 dB
    Audio Mux No
    Audio Mode Control I2C, SPI
    Supply Range +2.7 - +5.5 V
    Temperature Min -40 deg C
    Temperature Max 85 deg C
    Mono Analog Inputs 1
    Digital Audio Ports 0
    Loudspeaker Type Class AB
    Loudspeaker Outputs 2
    Headphone Type Cap Coupled
    AEC Q-100 Automotive Grade Undefined

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM4936MH/NOPB

    LM4936MH

    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide144
    AVNET-EMWorldwide84
    DIGI-KEYWorldwide1394
    TAYLORAmericas144
    		$1.85 each at 1K+ pcsrail
    of
    48
    LM4936MHX/NOPB

    LM4936MHX

    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.85 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 LM4936.

    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 LM4936 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LM4936MH/NOPB

    LM4936MH
    		117.59
    118.211
    		TSSOP EXP PAD281
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTTE#
    LM4936MH
    LM4936MHX/NOPB

    LM4936MHX
    		117.59
    118.211
    		TSSOP EXP PAD281
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTTE#
    LM4936MH

    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 LM4936.

    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 LM4936 is located at RoHS Status.

    CAD Symbols and Models
    Download LM4936 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM4936MHCMOS70213010015840003449464325
    LM4936MHXCMOS70213010015840003449464325

    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 LM4936.

    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 LM4936 is located at RoHS Status.

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