Designing one high performance signal generator based on triple tuned algorithm

In this paper, the triple tuned algorithm which can be used to achieve high frequency resolution and low spurious level PLL synthesizer was discussed. By using this algorithm with some modification have been made, a low spurious level and high frequency resolution signal generator without degradation of frequency switching speed was developed by one direct digital frequency synthesizer chip AD9850. Experimental results show that the signal generator developed in this paper has low spurious level and phase noise level while its frequency resolution is high.