鎖相環在頻率調制與解調電路中的應用

摘要：介紹了鎖相環芯片CD4046的結構、性能特點和工作原理；描述了頻率調制與解調電路的設計全過程；展望了鎖相環發展的未來。 敘詞：鎖相環；CD4046芯片；頻率；調制；解調 Abstract：n this paper, the construction、function characteristics and working principle of CD4046 Chip of PLL are introduced. The design whole process of make and solution adjusts circuits is described. And the future of PLL development is looked ahead. Keyword：PLL; CD4046 chip; frequency; make;