摘要
设计基于AD7846和FPGA的数/模转换电路,介绍AD7846的主要特点、基本结构、引脚功能和工作原理,设计基于AD7846转换芯片的数/模转换硬件电路,利用Verilog语言描述AD7846的控制时序,并给出具体的仿真结果。实践结果证明,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,进一步提高系统的可靠性和抗干扰能力。
The digital-to-analog（D/A） conversion circuit based on AD7846 and FPGA was designed.The main feature,structure,pin functions and working principle of AD7846 are introduced.The specific hardware circuit of D/A conversion based on AD7846 is designed.The language of Verilog HDL is used to describe the controlling timing of AD7846,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.
出处
《现代电子技术》
2012年第20期173-174,共2页
Modern Electronics Technique
