The Study and Realization of Digital Frequency Synthesis Based on DDS
Feng Zhe-hao · Science Technology and Engineering · 2011
Some issues are deals with during the synthesis of digital frequency signals such as change of phase and sine amplitude,smooth output and wave filter which features dynamics and variability.Utilizing AD9833 chip, the circuit is design that is used for synthesizing digital frequency signals,including external circuit,wave filter circuit and amplify circuit.The characteristics of this chip is given,the procedure design methodology is provided that includes AD9833 initiative,write control and synthesis frequency.The testing experiments indicate the accurateness and reliability of this design.