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Research and Realization of High Precision Signal Generator Based on DDS Technology

Yu Shuibao

Abstract

This design is based on the Direct Data Frequency Synthesis(DDS) technology,and single chip computer is used to control the AD9852.A kind of design of high precision signal generator is given.The hardware interface circuit between the single chip computer and AD9852,the software design of signal generator and the method to process 48 bit frequency control word in single chip computer are mainly described,and the method can be used in the software design of single chip computer when the data bit of integral type above 32.The output is easy to control,has high frequency and precision,and it has wide application in the future.

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Key concepts: Computer science, Signal generator, Generator (circuit theory), Realization (probability), Computer hardware, Chip, Software, Interface (matter)