一种新型无线音频FM发射装置的研制  

Development of A New Wireless Audio FM Transmitter

作　　者：卢光泽[1] 

机构地区：[1]解放军总医院医学工程保障中心

出　　处：《电气应用》2010年第11期88-91,共4页Electrotechnical Application

摘　　要：基于Si4721单晶片数字收发芯片和低功耗单片机C8051F340设计和实现一种无线音频发射装置。该装置以C8051F340为控制核心,实现对线性输入音频或送话器采集的音频信号进行无线发射功能。重点阐述了Silicon Laboratory公司的Si4721芯片的特性以及发射装置相关硬件电路的设计,并对软件设计流程和相关实验结果做了简单描述,为FM发射器的设计提供了借鉴。Based on single chip transceiver Si4721 and low power consumption microcontroller C8051F340, the wireless audio FM transmitter was designed and implemented. Controlled by the C8051 F340, the device could realize the function of wirelessly transmitting the line input or microphone input audio signal. In this paper, the principles and characteristics of single chip Si4721 from Silicon Laboratory corporation and the design of FM transmitter are described in detail, flow of software design and experiment results of the device are also demonstrated briefly, and the project can be used as some reference for the designing of wireless audio FM transmitter.

关 键 词：Si4721 IIC总线 FM发射器 

分 类 号：TN839[电子电信—信息与通信工程]