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机构地区:[1]泉州师范学院理工学院,福建泉州362000 [2]泉州师范学院科研处,福建泉州362000
出 处:《泉州师范学院学报》2007年第6期19-24,共6页Journal of Quanzhou Normal University
摘 要:文章设计的频率可调无线接收器是由接收和单片机控制两部分组成,接收部分采用低功耗窄带调频接收芯片MC3362为主体,利用锁相环频率合成技术,将载波频率锁定为指定的频率.解调信号放大器采用集成芯片LM386,电压放大倍数为200;单片机控制部分采用AT89C51芯片对MC145151的NO~N9口置数以达到频率可调的目的;显示部分采用DM162液晶显示;程序设计采用C语言编译实现.经测试,整机功能齐全,各项性能指标符合系统要求,接收波形稳定,无明显失真.The adjustable frequency wireless receiver consists of the receive part and the Single Chip Micyoco. The low-power narrowband FM receiver chip MC3362 is adopted as the main part in the receive part. And by using the Phase Locked Loop frequency synthesizing technology,the frequency of the carrier-wave will be locked by the receiver. With the integration chip LM386 chosen in the demodulated signal amplifier, the voltage amplifying multiple was 200. And the AT89C51 chips was used in the Single Chip Micyoco control part to set at the number to MC145151 N0-N8 to make the frequency adjustable. DM162 LCD was adopted in the display part. The C language was used to design the program. Through the test,the whole machine's function was very complete, every demand would be realized, the receiving wave was stable, without evident distortion.
关 键 词:MC3362 MC145151 AT89C51 调频
分 类 号:TN852[电子电信—信息与通信工程] TN742
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