DDS技术实现可调信号发生器  

Variable Signal Generator Based on DDS Technology

作　　者：黄雪梅[1] 胡建生[1] 魏功辉[1] 桂雄明[1] 

机构地区：[1]解放军理工大学,江苏南京210007

出　　处：《现代电子技术》2008年第9期80-82,共3页Modern Electronics Technique

摘　　要：介绍采用DDS技术、FPGA芯片和D/A转换器,设计一个频率、相位可控的多种输出波形信号发生器。基于QuartusⅡ软件设计实现,并下载至FPGA器件,使用SignalTapⅡ嵌入式逻辑分析仪进行实时测试。经过软件仿真和电路测试,输出波形达到了技术要求,能够满足多种试验的需要,且性能稳定,使用灵活,节约试验成本。This paper introduces using DDS technology, FPGA chip and D/A converter to design a multi -output waveform signal generator in which the frequency and phase are controllable. Based on realization of software design of Quartus Ⅱ,down-loaded to FPGA, using Signal Tap Ⅱ embedded logic analyzer to do real-time testing. Through software phantom and circuit testing, it can be seen that output waveform reached technological requirements, can meet needs of various experiments, but also with stable performance,flexible application and low cost.

关 键 词：FPGA 信号发生器 DDS(直接数字频率合成器) SignalTap Ⅱ嵌入式逻辑分析仪 

分 类 号：TN402[电子电信—微电子学与固体电子学]