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。
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