基于FPGA的频率合成器的实现

本文介绍了直接数字频率合成器（DDS）的原理,并通过现场可编程门阵列FPGA以查找表的方式予以实现24位DDS的方案。相对于传统的专用的数字频率合成器芯片,用高性能的FPGA器件设计符合自己需要的数字频率合成电路具有方便的控制方式和快速的置频速率等等诸多优点。

A Digital Frequency Synthesizer Implementation Based on FPGA

This text is to introduce the principle of direct digital frequency synthesizer （DDS） and a scheme of the implementation of 24 bits DDS through lookup table method with Field-Programmable Gate Array （FPGA）.As opposed to the traditional dedicated digital frequency synthesizer chip, using high performance FPGA device to design the digital frequency synthesizer circuit in accordance with ourselves ’ needs have the advantage of convenient control method and fast purchase frequency speed, etc.