基于VXI总线的射频开关模块的研制

Design of the RF Switch Based on VXIbus

本文主要在介绍VXI总线协议的基础上,通过对总线缓冲驱动、寻址和译码电路、数据传输应答状态机、配置及操作寄存器组等几部分功能模块的设计,提出了一种VXI寄存器基接口电路的实现方法,并给出了用可编程逻辑器件实现的过程。该接口电路已在多种VXI寄存器基器件中得到应用。同时,介绍了基于VXI总线射频开关模块功能电路部分PCB板的设计和实现,提出了若干电路板抗干扰设计的方法。

Through analyzing the design of the module such as bus buffer and drivers, address decoder, DTACK module, configuration and operation registers, a implementing method of the VXIbus interface circuit and the implementing process of using the programmable logic device is presented in this paper. It is based on the VXIbus criterion. This interface circuit has been used in many register devices. This paper mainly introduced to design the PCB board of radio-frequency switch circuit Based on VXIbus, and some noticeable items about anti-jamming techniques of PCB design are given.