For reducing the difficulty in designing, the author emulated andoptimized the DRO with Serenade8.71 from Ansoft Company. And thendesigned the PLL, finally debugged the hardware to get the final circuit.

• 为了减少设计的难度；本人用Ansoft 公司的Serenade8.；71 对并联反馈型DRO 进行仿真和优化；然后进行锁相环路的设计；最后对硬件进行调试而得到最终电路。