Design of RF Source based on Direct Digital Synthesizer
A new Radio Frequency (RF) source based on Direct Digital Synthesizer (DDS) is presented in this paper,to improve the performance of the Sound-light tunable filter.A DDS chip called AD9959 is used to produce RF signal.The AD9959 consists of four DDS cores that provide independent frequency,phase,and amplitude control on each channel,and FPGA is used to control AD9959,to ensure a high accurate signal source with multiple signal mode and four channels output is designed.This paper introduces the implementation of system including software and hardware.The test results show that the RF source has 0-200MHz bandwidth and resolution,stability and a series of functions fully realize the scheduled target.
RF source DDS AD9959 Multi-Channels
Hui Liu YueHong Qiu
Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences;Graduate School of th Xian Institute of Optics and Precision Mechanics, Chinese Academy of Sciences
国际会议
2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)
成都
英文
1-8
2012-08-08（万方平台首次上网日期，不代表论文的发表时间）