【摘要】 文章在分析了ADC0809模数转换器的工作性能特点的基础上,应用ALTERA的在系统可编程器件FLEX20K实现了ADC0809模数转换器接口电路的设计.该设计电路在MAX+PLUS II环境下采用VHDL语言实现;该电路系统将所有的硬件电路集成在一个芯片上,功能经过验证,转换结果符合A/D模数转换器的精度要求;该系统可以在不改变整体结构的基础上,进行升级和维护.更多还原

【Abstract】 Using FLEX20K device,the paper analyses the interior architecture of ADC0809,and makes an interface circuit for ADC0809.The design adopts VHDL language under the environment of MAX +PLUS II.All the hard circuit is designed on the in-system programmable FLEX20K device of ALTERA Company.Its function has been tested and verified and the conclusion is consistent with exactitude of A/D device.This system has an easy characteristic of maintaining and expanding.更多还原