• 帕智電子(上海)有限公司

    400 0800 882

    產品中心

    當前位置:首頁 > 產品中心 > 圣邦微 > 音頻,視頻驅動器 > 耳機驅動器 > SGM4809

    產品中心

    SGM4809

    Dual 158mW Headphone Amplifier with Active Low Shutdown Mode
     
    Dual 158mW Headphone Amplifier with Active Low Shutdown Mode
    GENERAL DESCRIPTION

    The SGM4809 is a dual audio power amplifier capable of delivering 158mW per channel of continuous average power with typically 0.1% distortion (THD+N) when it drives a 16Ω speaker from a 5.0V power supply. It is designed to maximize audio performance in portable applications such as mobile phone. The portable application requires audio power amplifier has minimum of external components and can operate from a single 2.5V to 5.5V power supply.

    SGM4809 features an externally controlled, active-low, micro-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

    SGM4809 does not require bootstrap capacitors or snubber networks. It is optimally suited for low power portable systems.

    For maximum flexibility, the SGM4809 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on time (with the bypass capacitor).

    The SGM4809 is available in a Green MSOP-8 package. It operates over an ambient temperature range of -40 to +85.

    PIN CONFIGURATIONS

    14159455389567.png

    FEATURES
    • Active-Low Shutdown Mode

    • 158mW into 16Ω Load from 5V Power Supply at THD+N = 0.1% (Typical, per Channel)

    • 87mW into 32Ω Load from 5V Power Supply at THD+N = 0.1% (Typical, per Channel)

    • Unity Gain Stable

    • Shutdown Current: 0.6μA (TYP)

    • 2.5V to 5.5V Operation

    • Shutdown Pin is Compatible with 1.8V Logic

    • Pop/Click Reduction Circuitry

    • -40 to +85 Operating Temperature Range

    • Available in a Green MSOP-8 Package

    APPLICATIONS

    Portable Systems
    Headphone Amplifier
    Microphone Preamplifier
    Notebook Computers
    Mobile Phone
    PDAs
    GPS

    ORDERING INFORMATION
    Part NumberStatusPackagePinsPb-FreeTemp Range
    SGM4809YMS/TRProductionMSOP-88Y-40℃ to +85℃

    相亲聊天怎么聊