摘要
介绍一款基于DDS技术的新型信号发生源的设计。设计中使用了可编程计数器82C54和模拟开关进行波的个数控制,其作用使信号源可以控制发出信号波的个数。信号源的输出频率为0-50MHz,可以输出正弦波和方波,其中正弦波幅值±12V,方波幅值为5V。该信号源具有结构简单,输出精度高,控制灵活的特点,可用于各种电路系统的信号测试试验中。
A new signal source based on DDS technology has been introduced. In particular, the thing worth to mention is due to the use of programmable counter 82C54 and analog switches, so the signal source can control the number of signal wave. The output frequency of the signal source： 0-50MHz, It can output sine wave and square wave, the output sine wave amplitude of ± 12V, squarewave output amplitude of 5V. The signal source has characteristics of simple structure, high-accuracy output and flexible control features, can be used for signal tests of various electrical systems.
出处
《微计算机信息》
2011年第4期108-109,共2页
Control & Automation
