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CLASS-D Power Amplifier

PAM8404

    The PAM8404 is a 3W high efficiency filterless class-D audio amplifier in 4mmX4mm and 2mmX2mm wafer chip scale packages that requires few external components.
    Features like 89% efficiency, -63dB PSRR,improved RF-rectification immunity, and very small PCB area make the class-D amplifier ideal for cellular handset and PDA applications.
    In cellular handsets, the earpiece, speaker phone,and melody ringer can each be driven by the PAM8404.The allows independent gain by summing signals from seperate sources, and has as low as 43 V noise floor.
    PAM8404 is available in QFN 4mmx4mm and WCSP 2mmx2mm packages.
    PAM8404概述:
        The PAM8404 is a 3W high efficiency filterless class-D audio amplifier in 4mmX4mm and 2mmX2mm wafer chip scale packages that requires few external components.
        Features like 89% efficiency, -63dB PSRR,improved RF-rectification immunity, and very small PCB area make the class-D amplifier ideal for cellular handset and PDA applications.
        In cellular handsets, the earpiece, speaker phone,and melody ringer can each be driven by the PAM8404.The allows independent gain by summing signals from seperate sources, and
    has as low as 43 V noise floor.
        PAM8404 is available in QFN 4mmx4mm and WCSP 2mmx2mm packages.

    PAM8404特性:
    3W Output at 10% THD with a 4 Load and
    5V Supply
    Supply Voltage from 2.5V to 5.5 V
    Efficiency Up to 89%
    Superior Low Noise without Input
    Few External Components to Save the Space
    and Cost
    Short Circuit Protection
    Thermal Shutdown
    Space Saving Packages :
    2mm X 2mm WCSP
    4mm X 4mm Thin QFN
    Pb-Free Packages

    PAM8404應(yīng)用:
    LCD Monitor / TV Projector
    Notebook Computers
    Portable Speakers
    Portable DVD Players, Game Machines
    Cellular Phones/Speaker Phones

    PAM8404典型應(yīng)用電路圖:



    PAM8404管腳分布:




    PAM8404管腳定義:


    PAM8404功能框圖:



    PAM8404封裝圖:

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