【精品】基于单片机的数字FM收音机设计(毕业论文).doc

学科分类号 0806 本科毕业论文（设计） 题目（中文）：0810404003 系　　别：　 物理与信息工程系 专　　业：　　　 通信工程专业　 指导教师：　　 某某 讲 师 起止日期：　2011年12月—2012年5月 2012年5月12日 目 录 摘 要 I 关键词 I Abstract II Key words II 1 前言 1 2 方案设计与论证 3 3 硬件电路设计 5 3.1 主控电路 5 3.2 音频输出模块电路 7 3.3 FM收音电路 10 3.4 LED数码管电路 13 3.5 按键电路 15 3.6 I2C总线简介 15 3.7 电路装配注意事项 18 4 软件设计 19 4.1主程序设计 20 4.2 数码管显示控制子程序 21 4.3 收音机控制子程序 22 5 系统测试 23 6 结论与心得 24 参考文献 25 致 谢 26 附录A 27 附录B 33  基于单片机的FM调频收音机 摘 要 调频收音机本次所设计的题目是调频收音机的设计。调频收音机（FM Radio）DS12C887时钟芯片 Based on single chip FM radio Abstract The frequency modulation radio (FM Radio) has been occupying an important position in people life of amusement. From the transistor radio of old style to the network radio today, we can see that enjoying life though broadcast is the life style that people always like. Now, with the rise and prosperity of consumption electronic products and the development of numerical electronic products, the majority of the electronic products designers of the manufacture always imbed FM part in the products such as the MP3, intelligence cellular phone, easy take-away Video etc. But the traditional frequency modulated solution has many problems such as electric circuit physical volume too big and adjust frequency modulation inconvenient, the stability not so well etc. In order to resolve the above-mentioned problems, numerous semi-conductor companies look for the ASIC frequency modulation receiver to solve these problems. This thesis introduces the design and the realization of numerical frequency modulation high fidelity radio. It solves the problems of electric circuit physical volume too big and adjusts frequency modulation inconvenient, the stability not so well etc. This thesis mainly introduces the hardware electric circuit, software design process, testing system. The MCU of digital frequency modulation high fidelity radio adopts the single slice machine of AT89C52. and the single sli