基于AD7543和FPGA的数/模转换电路设计

Design of D/A Convertor Circuit Based on AD7543 and FPGA

设计基于AD7543和FPGA的数/模转换电路,介绍AD7543的主要特点、封装形式、引脚功能和工作原理,设计基于AD7543转换芯片的具体的数/模转换硬件电路,利用Verilog HDL语言描述AD7543的控制时序,并给出具体的Verilog HDL代码及其仿真结果。实践结果表明,该设计可行,可取代传统的"CPU+专用的数/模转换(D/A)芯片"设计结构,可进一步提高系统的可靠性和抗干扰能力。

Digital-to-analog（D/A） conversion circuit based on AD7543 and FPGA is designed,and the main features,package,pin functions and working principle of AD7543 are introduced,and the specific hardware circuit of D/A conversion based on AD7543 is designed.The language of Verilog HDL is used to describe the controlling timing of AD7543,and the specific Verilog HDL code and simulation results are given.The practical results show that the design is feasible,and can be used to replace the traditional design of＂CPU＋ dedicated D/A chip＂and can further improve system reliability and anti -interference ability.