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LM4838GR

LM4838GR Description

Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain

LM4838GR Description

IC Amplifier AUDIO PWR 2.2W 49UARRAY

LM4838GR Categories

Audio Power Amplifiers

LM4838GR Manufacturer

National Semiconductor

LM4838GR Datasheet (PDF)

LM4838GR Datasheet
LM4838

LM4838GR Price & Availability


Check LM4838GR Price & Availability at Canics

LM4838GR Features

  • DC Volume 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

LM4838GR Description

    The LM4838 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4 with less than 1.0% THD or 2.2W into 3 with less than 1.0% THD.

    BoomerŪ audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4838 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

    The LM4838 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

    LM4838GR Parameters

    StatusFull production
    PackageMICRO-ARRAY
    Temperature Min (deg C)-40
    Temperature Max (deg C)85
    Pins49
    Pricing$1.90
    TypeClass AB
    Output Type2-Channel (Stereo) with Stereo Headphones
    FeaturesDepop, Mute, Shutdown, Thermal Protection, Volume Control
    SNR (dB)93
    Channels (Channels)2
    PSRR (dB)74
    CategoryIntegrated Circuits (ICs)
    FamilyAmplifiers - Audio
    THD (%).30
    User Supply (Volt)5
    Supply Range+2.7 - +5.5 V
    PowerAtFourOhms OnePercentTHD (Watt)2
    PowerAtEightOhms OnePercentTHD (Watt)1.10
    PowerAtEightOhms TenPercentTHD (Watt)1.50
    SNR ConditionsPout=1.1W
    PSRR Conditions120 Hz RL=8 Ohms
    THD ConditionsPo=1W @Vs=5V, 20Hz-20kHz
    SeriesBoomer®
    Package / Case49-Micro-array
    Voltage - Supply2.7 V ~ 5.5 V
    Max Output Power x Channels @ Load2.2W x 2 @ 3 Ohm; 95mW x 2 @ 32 Ohm
    Select parameters and click to see components with these parameters.

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    Keywords
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    LM4838GR Circuit LM4838GR Reference LM4838GR PDF LM4838GR RoHS