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2011•Journal of Changzhou Institute of TechnologyRequires access

Design of High-performance Signal Generator Based on AD9910

Ding Jun

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Abstract

Direct Digital Synthesis(DDS) technology is widely used in the field of modern communications,for its low phase noise,fast FM(frequency modulation) speed,small size and high frequency resolution.This paper introduces the working principle and characteristics of DDS,and presents the design circuit which uses single-chip microcomputer to control AD9910 DDS chip to generate high-performance signal.The experimental instrument test results show that the signal produced by the circuit can meet the users′ need of waveform,frequency,amplitude,and phase.

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What this paper is about

Direct Digital Synthesis(DDS) technology is widely used in the field of modern communications,for its low phase noise,fast FM(frequency modulation) speed,small size and high frequency resolution.This paper introduces the working principle and characteristics of DDS,and presents the design circuit which uses single-chip microcomputer to control AD9910 DDS chip to generate high-performance signal.The experimental instrument test results show that the signal produced by the circuit can meet the users′ need of waveform,frequency,amplitude,and phase.

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Available abstract

Direct Digital Synthesis(DDS) technology is widely used in the field of modern communications,for its low phase noise,fast FM(frequency modulation) speed,small size and high frequency resolution.This paper introduces the working principle and characteristics of DDS,and presents the design circuit which uses single-chip microcomputer to control AD9910 DDS chip to generate high-performance signal.The experimental instrument test results show that the signal produced by the circuit can meet the users′ need of waveform,frequency,amplitude,and phase.

Key concepts: Signal generator, Waveform, Arbitrary waveform generator, Microcomputer, Electronic engineering, SIGNAL (programming language), Computer science, Direct digital synthesizer

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