摘要在数字化和信息化越来越普及的今天基于单片机的智能数字收音机是能够为人 们带去更加便携轻巧的电台收音设备。

论文阐述了收音机及其相关技术在国内外的研究现状，分析了收音机系统各方面 的性能特点以及需求，结合当下收音机发展情况，确定了各模块的设计方案。依据系 统功能需求及参考其它设计者的经验，确定了各模块参数，并据此选择了相应的功能 芯片，单片机、按键、液晶显示器、调频收音模块和功放电路有机结合组成了该系统。 利用语音模块搜索频道，然后再送至单片机控制处理，利用功放来放大音频同时通过 液晶显示器显示频率，完善的电源管理系统包括充电系统、不同模块供电系统等。85077

最终通过实验验证，证明本文所设计基于单片机的智能数字收音机能够准确搜索 电台并且液晶显示屏上各项指标显示温度，电台收音清晰，完成了设计任务。

毕业论文关键词：收音机；单片机；频道搜索；液晶显示

Abstract In the society, technology is getting more and more popular。 Based on single chip microcomputer intelligent digital radio is to bring more lightweight and portable radio equipment for people。 Based on the detailed analysis of the IAP15F2K60S2 microcontroller technology features and digital FM radio based is proposed, which uses the monolithic integrated circuit control method to realize digital FM radio, and gives the specific hardware and software design。

This paper describes the radio and its related technology at home and abroad, and analyzes the performance characteristics and requirements of all aspects of the  radio system。 The design scheme of each module is determined through technical analysis。 According to the function requirements of the system and the experience of other designers, the parameters of each module are determined, and the corresponding function chips are selected accordingly。 TEA5767 search frequency, through the audio power amplifier and then by LCD display frequency。 With TEA5767 search frequency, through the amplification of audio power and then through the LCD display frequency, the different

modules of the power supply system。

Finally through to each module circuit hardware and software debugging and the overall function of the realization of observation, can accurately search radio and liquid crystal display indicators show that the temperature, radio is clear, the system reached design requirements established。

Keywords: radio; single chip microcomputer; channel search; liquid crystal display

目 录

第一章 绪 论 1

1。1 课题研究背景和意义 1

1。2 国内外研究现状 1

1。3 本文主要内容 1

第二章 总体方案设计 3

2。1 系统总体结构规划 3

2。2 控制方案确定 3

2。3 无线 FM 模块 4

2。4 显示部分的选择 4

2。5 音频输出模块 4

2。6 电源模块的选择 5

2。7 本章小结 5

第三章 硬件设计 6

3。1  主控芯片选择 6

3。1。1 芯片 IAP15F2K60S2 的性能及其参数 6

3。1。2  主控模块电路设计