数模混合电路的PCB设计

The PCB Design of Digital Analog Hybrid Circuits

高速PCB的设计中,数模混合电路的PCB设计中的干扰问题一直是一个难题。尤其模拟电路一般是信号的源头,能否正确接收和转换信号是PCB设计要考虑的重要因素。文章通过分析混合电路干扰产生的机理,结合设计实践,探讨了混合电路一般处理方法,并通过设计实例得到验证。

In high speed printed circuit board design, the interference in the design of hybrid circuit is a tough problem. Especially the analog signals are the sources of other signals, whether or not receive and transform signals accurately is the key factor of PCB design .The mechanism of interference source is analyzed in detail. With the experience of my PCB design, the general design rules of hybrid circuit and the approved corresponding solutions are given. These measures effectively reduce the mutually disturb with a PCB design as example.