›› 2011, Vol. 24 ›› Issue (11): 36-.

• Articles • Previous Articles     Next Articles

Design and Implementation of Short-wave Frequency Source Based on DDS Device

 SHI Hua-Hu, ZHANG Ling-Di   

  1. (School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China)
  • Online:2011-11-15 Published:2011-11-25


The structure and principles of direct digital synthesizer (DDS) are introduced,and key technologies of DDS are introduced into the frequency source.A low noise frequency source based on MCU+new DDS device is designed with a range of frequency of 46.5~75 MHz.Some relevant tests are carried out after the frequency source circuit finished.Experiments show that the frequency synthesizer has the features of precise resolution and low phase turning noise.

Key words: direct digital synthesizer;AD9912;MCU;frequency synthesizer

CLC Number: 

  • TN74+