基于FPGA的直接数字频率合成（DDS）电路

摘要

This paper depends on the basic principles of Direct Digital Synthesis（DDS）, based on EDA technology with top-down design method, the scheme of FPGA-based DDS circuit is proposed, all modules of the DDS circuit system are designed by using VHDL hardware description language, and the system is committed to hardware debugging on GX-SOC/Dev SOPC-Lab Platform which is placed in the laboratory of my academy. DDS circuit system based on FPGA has high reliability, better maintainability, ease of update and strong expandability. The system has a certain application value.%本文在根据直接数字频率合成（DDS）的基本原理，采用EDA技术自顶向下的设计方法，提出了一个基于FPGA的直接数字频率合成（DDS）电路的设计方案，采用VHDL硬件描述语言设计了DDS电路系统的各个模块，在实验室的GX-SOC/SOPC-Dev-Lab Platform开发实验平台上进行硬件调试。采用FPGA设计的DDS电路系统具有可靠性高、维护升级便捷、扩展性强等特点，具有很好的应用价值。