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2010•Machine Building & AutomationRequires access

Design and Implementation of DDS Function Generator Based on FPGA

Luo Ke-xue

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Abstract

In this paper,the design considerations of a DDS(Direct Digital Synthesizer) function generator with DSP Builder,including the method of changing frequency,amplitude and phase of output signal,are introduced.This system is mainly controlled by FPGA of Alter,and it is also assisted by micro-processor C8051F340.The results of software simulation of the system are given and hardware verification of the whole system is completed.The results prove that the design is correct,and show that the use of DSP Builder is simpler and faster to implement the DDS function generator.

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What this paper is about

In this paper,the design considerations of a DDS(Direct Digital Synthesizer) function generator with DSP Builder,including the method of changing frequency,amplitude and phase of output signal,are introduced.This system is mainly controlled by FPGA of Alter,and it is also assisted by micro-processor C8051F340.The results of software simulation of the system are given and hardware verification of the whole system is completed.The results prove that the design is correct,and show that the use of DSP Builder is simpler and faster to implement the DDS function generator.

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Available abstract

In this paper,the design considerations of a DDS(Direct Digital Synthesizer) function generator with DSP Builder,including the method of changing frequency,amplitude and phase of output signal,are introduced.This system is mainly controlled by FPGA of Alter,and it is also assisted by micro-processor C8051F340.The results of software simulation of the system are given and hardware verification of the whole system is completed.The results prove that the design is correct,and show that the use of DSP Builder is simpler and faster to implement the DDS function generator.

Key concepts: Field-programmable gate array, Direct digital synthesizer, Digital signal processing, Signal generator, Computer science, Function generator, Generator (circuit theory), Function (biology)

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