摘要
数字调频立体声收音机以AT89S52为主要控制器件来控制收音机模块TEA5767实现频率的接收,构成一个FM数字收音机系统,TDA2822作为音频放大器,通过电位器进行声音的调节,最后由扬声器或耳机输出声音。键盘和显示电路实现频率的修改、清零、复位以及当前频率值的显示。整个系统是由稳压器7805来提供5V的稳定电压,实现了调频FM电台个数大约有4~15个,而且噪限灵敏度达到调频FM〈10μV。与传统的调频方案相比,该数字调频立体声收音机系统减少了外部硬件电路解决了调谐不方便、抗干扰能力弱、电路体积大等问题,并且具有频带宽、音质好等特点。
Digital FM stereo radio adopts AT89S52 as the main control device to control the FM Stereo radio module TEA5767 to realize the receive of frequency,thus constituting a FM digital radio system.TDA2822 as audio amplifier,the sound is adjusted through the potentiometer,and finally is output through the speakers or headphones.Keyboard and display circuit is used to the frequency,clear, reset and display the current frequency value.
出处
《工业控制计算机》
2016年第9期141-143,共3页
Industrial Control Computer
