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CLASS AB/D Boost Power Amplifier

SC2307A

    The SC2307A with built-in boost module provides ample power output to the speaker, and the maximum boost value is selectable between four voltage levels of 6.5V, 7.0 and 7.5V. 
    SC2307A has AGC Anti-Clipping Function, which can significantly improve the sound uality, create comfortable listening enjoyment, and protect the speaker from overload damage.
    SC2307A has the Class AB/D mode switching function, and switching to the Class AB can reduce the interference of the amplifier in the system to FM.
    The fully differential architecture of SC2307A effectively increases the chip‘s ability to reject RF noise.The PWM modulation structure without filter and the built-in boost module reduce the peripheral components as much as possible. In addition, SC2307A has built-in over current protection, short circuit protection and overheat protection, which effectively protects the chip from damage under abnormal working conditions.
    SC2307A提供ESOP8封装。
    SC2307概述:
        SC2307内置异步自动升压模块的SC2307给音箱提供了宽裕的功率输出,并且最大升压值在给音箱提供了宽裕的功率输出,并且最大升压值在5.7V 、6.6V 、7.2V和7.5V四个电压值之间可选。
        当输入信号较小时,升压电路不工作,四个电压值之间可选。当输入信号较小时,升压路不工作,D类直接由电源供电;当输入信号变大时,自动开启升压模块升压至中间电平给类直接由电源供电;当输入信号变大时,自动开启升压模块升压至中间电平给D类供电;当输入信号变得更大时,升压电路继续升压至用户设定最大电压给类供电;当输入信号变得更大时,升压电路继续升压至用户设定最大电压给D类供电,这样可以提高系统工作效率,延长电池续航时间。类供电,这样可以提高系统工作效率,延长电池续航时间。
        SC2307具有AGC防破音功能,能显著提高音质,创造舒适的听音享防破音功能,能显著提高音质,创造舒适的听音享 受 ,并保护扬声器免受过载损坏 。SC2307具备AB类/D类模式切换 功能, 切换至AB类可类可减少系统中功放FM的干扰 。
        SC2307的全差分架构 有效地提高了芯片对RF噪声的抑制能力 。 无需滤波器的PWM调制结构及内置的升压模块内置的升压模块, 尽可能的减少了外围器件, 另外SC2307内置了内置了过流保护, 短路保护和过热保护, 有效的保护芯片保护芯片在异常的工作条件下不被损坏 。
        SC2307提供带散热片的SOP8-PP封装


    SC2307特点:
    ? 输入电压 范围:3V~5.5V
    ? 内置自适 应 升压电路, 将 输出电压自动升压至
    5.7/6.6V/7.2/7.5V
    ?AGC  防破音功能
    ?D  类/AB  类 切换
    ? 无需滤波的 的 D  类 PWM  输出
    ? 输出功率 P O (D  类@10% THD+N,
    V BAT = 3.7V )
    R L =2Ω,10W(BOOST  升压值为 为 7.5V)
    R L =2Ω,8.5W(BOOST  升压值为 为 6.6V)
    R L =4Ω,7.0W(BOOST  升压值为 为 7.5V)
    R L =4Ω,5.6W(BOOST  升压值为 为 6.6V)
    ? 过流、短路、欠压和过温保护功能
    ?Rohs标准环保封装
    SC2307提供带散热片的SOP8-PP封装


    SC2307A应用:
    Portable Speaker, Bluetooth Speaker
    Portable Game Machines
    Megaphone 
    MP4/GPS
    Table PC
    Note Book


    SC2307A典型应用原理图:

    SC2307A引脚分布:


    SC2307A引脚定义:



    SC2307A封装图:
    Please submit your basic information and send an email Sales@ChipSourceTek.com , or call us at 13823761625 (the same number as wechat), and we will contact you as soon as possible!

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