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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封裝。
    SC2307概述:
        SC2307內(nèi)置異步自動(dòng)升壓模塊的SC2307給音箱提供了寬裕的功率輸出,并且最大升壓值在給音箱提供了寬裕的功率輸出,并且最大升壓值在5.7V 、6.6V 、7.2V和7.5V四個(gè)電壓值之間可選。
        當(dāng)輸入信號(hào)較小時(shí),升壓電路不工作,四個(gè)電壓值之間可選。當(dāng)輸入信號(hào)較小時(shí),升壓路不工作,D類(lèi)直接由電源供電;當(dāng)輸入信號(hào)變大時(shí),自動(dòng)開(kāi)啟升壓模塊升壓至中間電平給類(lèi)直接由電源供電;當(dāng)輸入信號(hào)變大時(shí),自動(dòng)開(kāi)啟升壓模塊升壓至中間電平給D類(lèi)供電;當(dāng)輸入信號(hào)變得更大時(shí),升壓電路繼續(xù)升壓至用戶設(shè)定最大電壓給類(lèi)供電;當(dāng)輸入信號(hào)變得更大時(shí),升壓電路繼續(xù)升壓至用戶設(shè)定最大電壓給D類(lèi)供電,這樣可以提高系統(tǒng)工作效率,延長(zhǎng)電池續(xù)航時(shí)間。類(lèi)供電,這樣可以提高系統(tǒng)工作效率,延長(zhǎng)電池續(xù)航時(shí)間。
        SC2307具有AGC防破音功能,能顯著提高音質(zhì),創(chuàng)造舒適的聽(tīng)音享防破音功能,能顯著提高音質(zhì),創(chuàng)造舒適的聽(tīng)音享 受 ,并保護(hù)揚(yáng)聲器免受過(guò)載損壞 。SC2307具備AB類(lèi)/D類(lèi)模式切換 功能, 切換至AB類(lèi)可類(lèi)可減少系統(tǒng)中功放FM的干擾 。
        SC2307的全差分架構(gòu) 有效地提高了芯片對(duì)RF噪聲的抑制能力 。 無(wú)需濾波器的PWM調(diào)制結(jié)構(gòu)及內(nèi)置的升壓模塊內(nèi)置的升壓模塊, 盡可能的減少了外圍器件, 另外SC2307內(nèi)置了內(nèi)置了過(guò)流保護(hù), 短路保護(hù)和過(guò)熱保護(hù), 有效的保護(hù)芯片保護(hù)芯片在異常的工作條件下不被損壞 。
        SC2307提供帶散熱片的SOP8-PP封裝


    SC2307特點(diǎn):
    ? 輸入電壓 范圍:3V~5.5V
    ? 內(nèi)置自適 應(yīng) 升壓電路, 將 輸出電壓自動(dòng)升壓至
    5.7/6.6V/7.2/7.5V
    ?AGC  防破音功能
    ?D  類(lèi)/AB  類(lèi) 切換
    ? 無(wú)需濾波的 的 D  類(lèi) PWM  輸出
    ? 輸出功率 P O (D  類(lèi)@10% THD+N,
    V BAT = 3.7V )
    R L =2Ω,10W(BOOST  升壓值為 為 7.5V)
    R L =2Ω,8.5W(BOOST  升壓值為 為 6.6V)
    R L =4Ω,7.0W(BOOST  升壓值為 為 7.5V)
    R L =4Ω,5.6W(BOOST  升壓值為 為 6.6V)
    ? 過(guò)流、短路、欠壓和過(guò)溫保護(hù)功能
    ?Rohs標(biāo)準(zhǔn)環(huán)保封裝
    SC2307提供帶散熱片的SOP8-PP封裝


    SC2307A應(yīng)用:
    Portable Speaker, Bluetooth Speaker
    Portable Game Machines
    Megaphone 
    MP4/GPS
    Table PC
    Note Book


    SC2307A典型應(yīng)用原理圖:

    SC2307A引腳分布:


    SC2307A引腳定義:



    SC2307A封裝圖:
    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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