FPGA直接数字频率合成信号发生器

FPGA Direct Digital Frequency Synthesis Signal Generator

DDS是从相位的概念出发进行频率合成的一项新型技术。简要介绍了DDS的工作原理,提出了一种选用Altera公司不久前发布崭新体系的大容量Stratix II系列FPGA—EP2S60来实现DDS系统的核心部分的设计方案。并用Matlab语言将QUARTUSⅡ4.0波形仿真结果转换为波形曲线。实验结果表明,利用Altera公司的FPGA—EP2S60器件,通过各种优化措施,设计开发的DDS系统,达到了预期的目的,具有较高的性价比。

DDS from the concept of phase frequency synthesis is a new technology. This paper introduces the principle of DDS, presenting a solution based on a new high-capacity Stratix Ⅱ Series FPGA- EP2S60 DDS System recently announced by Altera Corporation to achieve the core of the design. Matlab language will be used to convert QUARTUS Ⅱ 4.0 waveform simulation results into waveform curve. The experimental results show that use of Altera＇ s FPGA - EP2S60 device, through a variety of measures to optimize the design development of the DDS system, achieved the desired results, with the higher performance-price ratio.