基于FPGA的便携式信号发生器设计
FPGA-Based Portable Signal Generator Design

随着信号技术的发展，函数信号发生器已成为测量领域不可替代的仪器。但如今业界生产的信号发生器大多体积庞大，且便携不易。本文介绍一种基于EP4CE10F17C8N现场可编程门阵列和AD9708数模转换器的便携式信号发生器。通过锁相环技术和DDS技术的应用，它可以产生正弦波、三角波、方波、梯形波等常用信号发生器，并且可以改变占空比、频率、电压等一系列信号参数。此外，在某些特殊情况下，用户可能需要输出特殊波形。基于这个特点，它具有允许用户根据自己的意愿更改波形的功能。通过应用此技术，我们观测到了不同种类的输出波形，实现了输出信号的个性化。
With the development of signal technology, function signal generators have become irreplaceable instruments in the field of measurement. But most of the signal generators produced in the indus-try today are bulky and not portable. This article describes a portable signal generator based on the EP4CE10F17C8N field programmable gate array and the AD9708 digital-to-analog converter. Through the application of phase-locked loop technology and DDS technology, it can generate common signal generators such as sine wave, triangle wave, square wave, trapezoidal wave, etc. and can change a series of signal parameters such as duty cycle, frequency, voltage and so on. In addition, in some special cases, the user may need to output a special waveform. Based on this fea-ture, it has the ability to allow the user to change the waveform according to their wishes. By ap-plying this technique, we can observe different kinds of output waveforms and realize the individ-uation of output signals.