Based on the discussion of the topological structure of a superheterodyne FM receiver, a one chip FM receiver for FSK(Frequency Shift Keying) signal has been designed.

• 在分析超外差 FM中频接收拓扑结构的基础上 ,设计出一种用于 FSK(移频键控 )信号的单片FM中频接收电路系统。