2011•Electronic Science and TechnologyRequires access

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

Zhang Ling-di

Abstract

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.

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Available abstract

Key concepts: Direct digital synthesizer, Frequency synthesizer, Phase noise, Electronic engineering, Frequency multiplier, Computer science, Noise (video), Key (lock)