基于DDS的多功能高精密信号发生器设计

Abstract

Abstract:

The signal generator is an indispensable tool in the modern electronic measuring,and widely used in the field of communication,measurement and radar control.This paper puts forward a signal generator design method based on DDS technology.The design sets signal parameters by PC and processes the frequency control word by MCU,and then produces sine,square,FSK,ASK and other modulation waveforms.The output frequency is up to 150 MHz and the frequency resolution is 1 μHz.Experimental results show that the design has the advantages of full-function,high-precision and excellent programming capability.

Key words: signal generator;DDS;AD9854;MCU

CLC Number:

TN74

LIN Chongfeng,LIANG Longxue,SUO Yuntian. Design of Multi-function High-precision Signal Generator Based on DDS[J]., 2013, 26(9): 127-.

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Design of Multi-function High-precision Signal Generator Based on DDS

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