Analysis of Mechanism of Formation of Interference at the Output Multilevel Finite State Machine
Abstract
A single model for the formation of two-level and multi-level oscillations with envelopes of different shapes using the methods of passive digital frequency synthesis are considered. A comparative analysis of the spectra of oscillations at the output of the system of two-level and multilevel passive digital frequency synthesis is made. The mechanisms of interference generation in the spectrum of the output oscillations with multilevel frequency synthesis are analyzed for the case of the perfect output digital-to-analog converter (DAC), with the bit width fractional multiple to the bit width of the phase accumulator (FA). It is also shown that additional spectral components appear, which are absent at the integral bit width relation of DAC and FA.
About the Author
Y. A. Nikitin
Saint Petersburg Branch "Leningrad Department of Research Institute of Radio"
Russian Federation
Ph.D. in Engineering (1988), senior scientist (1990), the chief of the science laboratory
Russian Federation
Ph.D. in Engineering (1988), senior scientist (1990), the chief of the science laboratory
References
1. Nikitin Yu. A. Spectra of Oscillations in Passive Digital Frequency Synthesis. Radiotekhnika [Radio Engineering]. 1990, no. 7, pp. 43-49. (In Russian)
2. Nikitin Yu. A. Skhemotekhnika sovremennykh mikrovolnovykh sintezatorov chastot. Ch. 1. Obshchie polozheniya. Passivnyi sintez chastot: uchebnoe posobie [Circuitry of Modern Microwave Frequency Synthesizers. 1. General Provisions. Passive Frequency Synthesis: Textbook]. Saint Petersburg, SPbGUT, 2015, 100 p. (In Russian)
3. Aperiodicheskie avtomaty; pod red. V. I. Varshavskogo [Aperiodic Automatic Machines; ed. VI Varshavskogo]. Moscow, Nauka, 1976, 424 p. (In Russian)
4. Brauer V. Vvedenie v teoriyu konechnykh avtomatov [Introduction to the Theory of Finite Automata; Per. from German]. Moscow, Radio isvyaz' [Radio and Communication], 1987, 392 p.
5. Nikitin Yu. A. A mathematical model of waveform generation using the methods of passive digital synthesis. Izvestiya vuzov. Priborostroenie [Journal of Instrument Engineering]. 2011, no. 9, pp. 52-57. (In Russian)
6. Vinogradov I. M. Osnovy teorii chisel [Fundamentals of Number Theory]. Moscow, GITTL, 1940, 112 p. (In Russian)
7. Nikitin Yu. A. Analysis of a Finite Automaton for Frequency Synthesis by Means of Functions of an Integer Argument. Izvestiya vuzov. Priborostroenie [Journal of Instrument Engineering]. 2010, no. 5, pp. 25-29. (In Russian)
8. Available at: http://www.analog.com/media/en /technical-documentation/data-sheets/AD9912.pdf (accessed: 11.05.2017) (In Russian)
Review
For citations:
Nikitin Y.A. Analysis of Mechanism of Formation of Interference at the Output Multilevel Finite State Machine. Journal of the Russian Universities. Radioelectronics. 2017;(3):52-59. (In Russ.)
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