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TDA7498设计的100W100WD类音频放大技术

发布时间:2020-06-30 18:18:42 阅读: 来源:减压阀厂家

TDA7498是100W+100W双BTL D类音频放大器,主要用在家庭影院和有源扬声器. TDA7498单电源10-39V工作,效率高达90%,增益设定为25.6 dB, 31.6 dB, 35.1 dB和37.6 dB, 在THD = 10%, RL = 6欧姆和VCC = 36 V时的输出功率为100W+100W.本文介绍了TDA7498主要特性, 内部方框图, 特性测量电路图, 6和8欧姆扬声器应用电路图以及待机和静音电路图, 6和8欧姆扬声器LC滤波器电路图.TDA7498:100 W + 100 W dual BTL class-D audio e TDA7498 is a dual BTL class-D audio amplifier with single power supply designed for home systems and active speaker applications. It comes in a 36-pin PowerSSO package with exposed pad up (EPU) to facilitate mounting a separate A7498主要特性:100 W + 100 W output power at THD = 10% with RL = 6ohm and VCC = 36 VWide range single supply operation (10 - 39 V)High efficiency (= 90%)Four selectable, fixed gain settings of nominally 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dBDifferential inputs minimize common-mode noiseStandby and mute featuresShort-circuit protectionThermal overload protectionExternally synchronizable图A7498内部方框图(仅显示一路)图A7498特性测量电路图图A7498 6欧姆扬声器应用电路图

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