红外遥控数字式FM接收机设计

Design of an Infrared Remote Digital FM Receiver

介绍了红外遥控数字式FM接收机的设计方法,该系统以微控制器avr48v10au为设计核心,与数字收音机模块Si4702构成一个FM数字收音机系统,通过微控制器向Si4702和PT2315芯片写入相关程序,实现收音机的接收频率调整、工作模式、音量等各项参数的设置。该电路的频率接收范围为87.5～108 MHz,能够接收到10～12个电台,具有精度高、抗干扰性强、稳定性好等特点,具有较高的应用价值。

The design method of infrared remote digital FM receiver is introduced in this article. The core of the system is the microcontroller avr48v10au, which constitutes the FM digital radio system together with a digital ra- dio module Si4702. It writes programs into the chip Si4702 and PT2315 from microcontroller to set the parameters like radio receiver frequency, working mode, volume and so on, The receiving frequency range of this circuit is from 87.5 to 108 MHz, capable of receiving 10 to 12 stations. The system is highly applicable with its high preci- sion, good anti-interference performance and stability.