Design and Realization of Direct Digital Frequency Synthesizer Based on VHDL
Zhao Lin-jun · Modern Electronics Technique · 2008
From the principle of DDS,the quantization word length to DDS performance influence is discussed,and the relations of quantification signal-to-noise ratio to phase word length and amplitude word length is given.A detailed DDS design example,which phase quantization word length is 24 b and amplitude quantification word length is 10 b.Finally,the essential way to improve the DDS performance is pointed out.