A Novel Rom-less Direct Digital Frequency Synthesizer based on Euler Infinite Series
U.Dinesh1, Aravind Ram.S2, M.Hariharan3, K.Hariharan4
1U.Dinesh, Electronics & Communication Engg, Thiagarajar College of Engineering, Madurai, India.
2Aravind Ram. S, Electronics & Communication Engg, Thiagarajar College of Engineering, Madurai, India.
3M.Hariharan, Electronics & Communication Engg, Thiagarajar College of Engineering, Madurai, India.
4K.Hariharan, Electronics & Communication Engg, Thiagarajar College of Engineering, Madurai, India.
Manuscript received on April 05, 2013. | Revised Manuscript received on April 29, 2013. | Manuscript published on May 05, 2013. | PP: 92-95 | Volume-3, Issue-2, May 2013. | Retrieval Number: B1443053213/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The traditional DDFS based on a look up table needs a large sized ROM and it is more complex. This paper deals with a novel ROM-less architecture based on the approximation of Euler’s Infinite series. It has advantages of low complexity, low computational delay, and high spectral purity. The proposed DDFS has a high SFDR (spurious free dynamic range) when compared with [1] and the value is as good as 72.3dBc.
Keywords: Direct Digital Frequency Synthesis, Euler Infinite Series, low complexity, spectral.