基于单片机的FM收音机的设计Word格式.docx

1、例如，本文所要论述的通过单片机STC89C54来控制TEA5767HN芯片使其实现调频功能。STC89C54单片机的特点是体积小、集成度高、重量轻、抗干扰能力强，对环境要求不高，价格低廉，可靠性高，灵活性好，开发较为容易。现在人们常使用的收音机为手动调频收台，使用较为麻烦，而且由于接收灵敏度不高，所接收的频段较窄。本设计采用的是TEA5767HN芯片，它是由PHILIPS公司推出的针对低电压应用的单芯片数字调谐FM立体声收音机芯片。TEA5767HN芯片内集成了完整的IF频率选择和鉴频系统，只需很少的低成本外围元件，就可实现FM收音机的全部功能。随着信息化的发展，TEA5767系列单片数字收音

2、机也就被广泛应用到数码音响，使用宏晶科技生产的8位微控制器STC89C54来控制数字收音机模块TEA5767，构成一个FM数字收音机系统。本设计主要是体现单片机系统的自动控制能力，更重要的意义是单片机的应用改变了控制系统传统的设计思想和方法。关键词： STC89C54单片机；TEA5767HN芯片; ABSTRACTThe design is a digital FM radio （FM）, It is to receive the frequency modulated radio signals, electronic equipment restored to the original

3、signal after demodulation, the use of dedicated chip MCU control FM functions, design a radio system. The singlechip has come out since the 1970s, compared to is valued peoples and the attention by the extremely high performance price, therefore the application is very broad, the development is very

4、 quick. The application of SCM has changed the design idea and method of the traditional control system. Previously used by most of the hardware circuit of the control function, is the MCU software methods to achieve. With the combination of hardware or software to replace hardware and can improve t

5、he control system performance is called the micro control technology. STC89C54 Monolithic integrated circuits characteristic is the volume is small, the integration rate is high, the weight is light, antijamming ability, is not high to the environment request, the low in price, the reliability is hi

6、gh, the flexibility is good, the development is easier. What this design uses is the TEA5767 chip, it is promotes by PHILIPS Corporation in view of the low voltage application single chip digit harmonious FM stereophonic receiver chip. In the TEA5767 chip integrated the complete IF frequency selecti

7、on and the frequency discrimination system, only need the very few low cost periphery part, be possible to realize the FM radios complete function. With the development of information technology, the TEA5767 series monolithic digital radios will be widely applied to digital audio, use the macro crys

8、tal technology to produce 8 bit micro controller STC89C54 to control the module of digital radio TEA5767, a FM digital radio system.This design is mainly the automatic control ability of MCU system, more important is the design idea and method of the application of SCM has changed the traditional co

9、ntrol system.Keywords ：STC89C52 , Nokia5110 , TEA5767摘要. ABSTRACT.I1 前言. .11.1 选题的背景.11.2 课题的意义.12 设计内容与步骤.32.1 确定机械手的总体方案.32.2设计机械手的各执行构件.32.3气动液压系统的设计.43 设计方案的制动与选择.53.1 机械手搬运规格及参数.53.2 方案的制定.53.3 方案的总结分析.83.4 方案的优化设计.94 机械手主要零部件的设计.13 4.1 机械手抓部件主要参数的确定.13 4.1.1 推力液压缸选型的确定.13 4.1.2 推力液压缸行程的确定.16 4

10、.1.3 机械手指的设计.18 4.1.4 机械手骨架设计.19 4.1.5 轴承的计算与选择.19 4.1.6 立轴的设计.20 4.2 移动架部件主要参数的确定.21 4.2.1 中间升降液压缸型号的确定.21 4.3 滑动板部件主要参数的确定.23 4.3.1 滑动板的外形设计.23 4.3.2 支撑轴的设计.24 4.3.3 滑轮的设计.25 4.4 支撑架部件主要参数的确定.26 4.4.1 推动液压缸的选型确定.26 4.4.2 支撑架的设计.275 重要的零部件的校核.29 5.1 键的校核.296 结论.31参考文献.32致谢.331 前言1.1 选题背景现如今，新媒体技术蓬勃发展。像电视、手机、互联网等媒体都已经进入千家万户。各种便携式娱乐设备也已经普及到家。可以说现在正在或者说已经进入娱乐时代。但传统的收音机在丰富的娱乐媒介中任然占有重要地位。现如今的收音机发展的非常迅速，从诞生到现在已有80年的历史了，在此期间经历了从电子管到晶体管、从晶体管到集成电路的发展过程。随着信息化的发展，收音机逐渐数字化，集成化，而且成本越来越低，携带也越来越方便，这使得在各种设备中嵌入收音机的现象更加普遍。特别是和现在新兴的单片机技术结合使得制