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LM4838MT

LM4838MT Description

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

LM4838MT Categories

Audio Power Amplifiers

LM4838MT Manufacturer

National Semiconductor

LM4838MT Datasheet (PDF)

LM4838MT Datasheet

LM4838MT Price & Availability


Check LM4838MT Price & Availability at Canics

LM4838MT 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

LM4838MT 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.

    LM4838MT Parameters

    StatusFull production
    PackageTSSOP
    Temperature Min (deg C)-40
    Temperature Max (deg C)85
    Pins28
    Pricing$1.40
    SNR (dB)93
    Channels (Channels)2
    PSRR (dB)74
    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
    Select parameters and click to see components with these parameters.

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    Keywords
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