摘要
设计了一种无线调频发射与接收系统,该系统由调频发射模块QN8027和接收模块RDA5807两部分组成。采用STM32F103C8T6为主控芯片,通过I 2C接口控制QN8027和RDA5807实现双向语音或音频信号的发射与接收。QN8027具有一定的功率输出,本系统中加入了功率放大电路,从而实现中短距离的调频发射和接收。实践证明,此系统在家庭娱乐、实时对讲、音频信号传送等场合有很好的应用价值。
A wireless FM transmitting and receiving system is designed.The system consists of two parts:the FM transmitting module QN8027 and the receiving module RDA5807.The STM32F103C8T6 is used as the main control chip,and the QN8027 and RDA5807 are controlled by the I 2C interface to realize the transmission and reception of two-way voice or audio signals.QN8027 has a certain power output.The power amplifier circuit is added to the system to realize the transmission and reception of the medium and short-range FM.It has been proved that the system has good application in home entertainment,real-time intercom,voice signal transmission and other occasions.
作者
索朝举
沈沛雨
刘静波
徐宁
曹宇彤
李泓铂
Suo Chaoju;Shen Peiyu;Liu Jingbo;Xu Ning;Cao Yutong;Li Hongbo(Nanjing Institute of Technology Institute of Information and Communication,Nanjing 211167,China)
出处
《单片机与嵌入式系统应用》
2019年第12期81-83,共3页
Microcontrollers & Embedded Systems
基金
大学生科技创新基金项目(TB301906001)
