I 设计成绩课程设计说明书题目足球小音箱的制作姓名XXX 学号 1110401009 专业年级 11 级电信专业一班指导教师肖景 2012 年5月 20日 II 摘要本论文要设计的为简易足球小音箱的制作,基本功能要能实现音箱基本功能(如发音,调音,电源指示, USB 供电等)。迷你足球音箱足球由两个半球和底座组成,每个半球内装有一只亮膜小喇叭,底座内装有电路板,电路使用经典的 2822 双声道功放集成电路,带有电源开关、电源 LED 指示灯、双声道音量电位器、还有接外接电源用的空心插座。底座下面设有可以装 4节7 号电池的电池槽,或利用 USB 供电。套件产品附有双声道音频输入线,线上有 的双声道插头,可以摆放在床头、书桌、电脑桌等地放,音源可以使用 MP3 、电脑输出等。关键字:声道,功放,音源 Abstract This thesis is to design for the production of simple football speaker, the basic functions to be able to achieve a sound basic functions (such as pronunciation, mixer, power indicator, USB-powered, etc.). Mini Football Speaker Football posed of two hemispheres and the base, each hemisphere contains a bright membrane small speaker base contains a circuit board, circuit uses the classic 2822 two-channel amplifier IC, with a power switch, power LED, dual sound Road volume potentiometer, hollow socket for an external power supply. Base the following features can be installed four 7-cell battery slot, or use a USB-powered. Suite of es with a two-channel audio input line, online dual-channel plug, can be placed in the bed, desk, computer desk to put the sources you can use MP3, puter output. Keywords: channel, amplifier, audio 目录 1 绪论....................................................................................................................... 4 论文特点及研究意义...................................................................................................... 4 系统简介.......................................................................................................................... 4 2 元器件......................................................................................................................................... 5 功能元器件....................................................................................................................... 5 D2822 功放芯片............................................................................................................... 5 B50
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