Applied Study of Admixture-frequency Synthesize Technique on Increaseing the Rate of Purity Degree and the Frequency Expanding of Frequency Spectrum
Lihong Tian · Modern Electronics Technique · 2007
The pure DDS frequency synthesizes or the traditional PLL frequency synthesizes has one′s own strong points and disadvantages,making use of the admixture frequency synthesize technique,we can combine the two synthesis techniques and live up to learn from others′s strong points to offset one′s weakness.making use of the frequency synthesize technique that PLL stimulated by DDS,the anthor realizes a kind of frequency synthesizer which has higer purity on frequency spectrum and able to rapid spreads spectrum.Discussion of the problems on the in the process,getting better test result and frequency spectrum.