摘要
介绍了一种新颖实用的16位高分辨率数模转换的方法及应用,阐述了电路的软硬件原理,并主要论述了利用CPLD产生PWM波及I/O扩展接口、对PWM进行数模转换以及作者在工程中对此数模转换器的应用。该系统具有接口简单、成本低、分辨率高并可由软件控制,适用范围广、实用性强等特点。
This paper presents a kind of practical design of 16-bit D/A based on CPLD, especially expatiates on the software and hardware theory of the circuit. The paper also mainly introduces the generating PWM and I/O port with CPLD, the D/A conversion of PWM, and the application of this system in my work. The D/A system not only is digitally controlled simply but also has low price and high precision and can be controlled by software. It can be widely used in many fields.
出处
《南京工业职业技术学院学报》
2005年第2期50-53,共4页
Journal of Nanjing Institute of Industry Technology
