基于MC12210的频率合成器系统设计

为了使信道在多频点通信时拥有高稳定、易调整的频率源，基于MC12210串行数字锁相频率合成器芯片合成了一种可设置100个频点的主振源；给出了系统硬件及软件的实现法，着重介绍了通过单片机控制设置分频比；经过具体的软硬件调试，结果表明，主振源设计方法正确，达到了各项指标要求，其在变频方面简单合理，使用灵活方便，具有很强的实用性。

System Design of Frequency Synthesizer Based on MC12210

In order to get a high-stable and easy-adjustable frequency source when communicating at multi frequencies, a master oscillator that set up with 100 frequencies based on serial input frequency synthesizer MC12210 is designed. Hardware and software designs are given, the divider setting which controlled by MCU is emphasized, The result shows that the design method is correct and it reaches all demands, and also the system is proved to be simple and feasible, convenient and flexible to use in changing frequency, the practicability is excellent.