波形发生器

文档编号:DQ012  文档字数:12216,页数:27 附任务书，开题报告，文献综述，外文翻译

摘  要
 随着社会的发展，波形发生器在各个领域内广泛地被运用，社会对波形发生器的需求也将越来越大。近年来移动通信成为信息产业的热点,所用频段和调制带宽不断增加,多载波和多标准共同使用，波形发生器对稳定性和精确性要求也越来越高，但目前市场上，国产的信号发生器频率均较低，而高频率范围的进口产品价格却较昂贵。高性能价格比的通用函数信号发生器是市场上的空白。因此设计出精确而实惠的波形发生器将具有很大的市场前景，本设计通过单片机AT89C52和单片集成的信号发生芯片MAX038实现了一种简单的智能信号发生器，用户通过键盘输入可选择正弦波，矩形波和三角波波形输出，通用性好，价格实惠，具有很好的推广价值，将会产生很大的经济与社会效益，具有普遍的实现意义。

关键词：波形发生器、正弦波、单片机、智能

Abstract
With the development of our society, signal generator are widely used in all field of the society, the demand of signal generator is become bigger and bigger. Recent years mobile communication become the hotspot of information industry, the frequency and modulate bandwidth which is being used increase quickly, multi-carrier wave and multi-standard used together, the stability and accuracy of signal generator is also higher and higher, but in our market, homebred signal generator’s frequency are very law, and the import high frequency one is very expensive. The high cost-effective
Currency function signal generator is blanket in the market. So design a accurate and substantial signal generator has a high market foreground, in this design , through single chip AT89C52 and single Integrated signal generate chip MAX038 to achieve a simple intelligent signal generator, users can choose the keyboard input sine wave, rectangular and triangular wave waveform output, common good, affordable, with the promotion of good values, will have a great economic and social benefits. The realization has universal significance.
 
Keywords：signal generator、sine wave 、single chip 、intelligent

目 录
摘要. . ...I
1 前言..1
 1.1国内外波形信号发生器的现状与发展2
     1.1.1 矢量信号发生器2
       1.1.2任意波形发生器3
2 总体设计方案. . .5
 2.1信号发生芯片的选择.5
 2.2 如何在单片机系统中使用MAX038.... . .7
 2.3 AT89S51单片机. . . 8
        2.3.1 CPU特性 8
        2.3.2 存储器 9
 2.3.3 单片机的工作方式10
 2.3.4  并行I／O接口11
 3 硬件思路设计...14
 3.1硬件主要结构..14
 3.2主要器件..14
 3.3电路原理图及说明.15
 3.4输出放大电路部分 17
4  软件设计.. 19
 4.1程序流程. 19
 4.2程序说明 19
5  总结. . ..23
致谢... 24
附录1 原理图，PCB...  26

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