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本文对美国国家半导体公司的音频功率放大芯片TDA2030进行深入的研究和分析，详细介绍音响放大器的设计过程，以Protel应用软件为工具，对原理图和PCB电路板进行设计，最后进行电路的安装和调试。要求放大器具有话筒扩音、音调控制、电子混响、卡拉OK伴唱功能等。
关键词：音响放大器；增益；音频功率放大器；PCB设计

Thorough go into and analysis the main body of a book is carried out on VF of USA country semiconductor company power amplification chip TDA2030, the process introducing audio amplifier design detailedly, takes Protel application software as implement , circuit board carries out installation and debugging designing , carrying out a circuit's finally on principle picture and PCB. Require that the amplifier has a microphone expanding a tone , pitch controls , the electron reverberation , the Karaoke vocal accompaniment function wait.

Keywords: Audio amplifier; Gain; VF power amplifier; PCB is designed

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This article conducts the thorough research and the analysis to American Country Semiconductor Company's audio power enlargement chip TDA2030, introduced in detail the acoustic amplifier the design process, take the Protel application software as a tool, carries on the design to the schematic diagram and the PCB electric circuit board, finally carries on the electric circuit the installment and the debugging.Requests the amplifier to have the microphone to amplify, the tonality control, the electronic reverberation, the Kara OK vocal accompaniment function and so on.

This article on National Semiconductor's audio power amplifier TDA2030 chip to conduct in-depth research and analysis, detailed design process audio amplifier to Protel application software as a tool for schematic and PCB board design, the final circuit installation and debugging. Request PA amplifier with microphone, pitch control, electronic reverberation, karaoke accompaniment function OK.
Keywords: audio amplifier; gain; audio power amplifier; PCB design