基于单片机的水箱温度调控系统设计毕设论文.docVIP

学号： 常州大学 毕业设计（论文） （2012届） 储开斌 二○ 基于单片机的收音机设计 摘 要： 该文设计了一款基于单片机控制的收音机，该收音机以STC89C52RC单片机为主控器芯片，配合集成收音芯片RDA5807SP完成对电台高频信号的混频、中放、鉴频、功放等全部功能。该收音机配有键盘，通过键盘，用户可以自由选择收听电台的频率、调节音量的大小。LCD1602液晶模块则为用户提供了人性化的界面显示，使得当前收音机的收音频率、音量等信息可以尽收眼底。 该收音机采用的RDA5807SP集成芯片，具有驱动能力强、频率覆盖广、接收灵敏度高、抗干扰能力强、音质出色等特点，该芯片采用了I2C总线控制模式，更易于操作，值得一提的是该款芯片是由我国锐迪科微电子自主研发的COMS工艺、低功耗调频收音芯片，打破了美国公司在同类芯片上的垄断；主控器芯片则选择了宏鑫科技的STC89C52RC型号单片机，这款芯片以价格低廉、可靠性高著称，可以通过串口直接下载程序的特点为该收音机的设计缩短了开发时间、节约了成本。独立按键和液晶显示的设计简洁明了，使得用户的操作变的更加简单，体现了收音机将会朝着更加人性化道路前进的发展趋势。 实验结果表明，该收音机具有成本低、可靠性高、功耗低、体积小，便于携带、操作简单等特点，有着较好的应用价值。良好的人机交互操作体验将有助于提高其市场竞争力。 关键字：单片机；收音机；RDA5807SP ；LCD1602 The Design of radio based on SCM Absract：In this paper, intelligent control radio based on single chip was designed. The radio takes STC89C52RC MCU as the main control chip, it uses radio integrated chip of RDA5807SP to achieve radio frequency signal mixing, intermediate frequency amplification, power amplification and all other functions. And it is equipped with four independent buttons, the user can freely choose to listen to radio frequency and adjust the volume size with the buttons. LCD1602 liquid crystal module provides users with user-friendly interface display, and the current radio frequency, volume and other information can be a panoramic view. The RDA5807SP integrated chip the radio uses has a strong drive ability, frequency coverage, high sensitivity , strong anti-interference ability, excellent sound quality and other characteristics. By using I2C bus control mode, the chip is easy to operate. It is worth mentioning that the FM radio chip of COMS which is researched independently by RDA Microelectronics Technology in our country is low power, it breaks the American companies in similar chip monopoly. The main controller chip selects STC89C52RC model single chip which was produced by Hong Xin Technology, the chip is known in low price and strong reliability. The characteristics of downloading programs directly through the serial p