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Publikacje Pracowników Politechniki Lubelskiej

Publikacje Pracowników PL z lat 1990-2010

Publikacje pracowników Politechniki Lubelskie z lat 1990-2010 dostępne są jak dotychczas w starej bazie publikacji
LINK DO STAREJ BAZY

MNiSW
20
Poziom I
Status:
Autorzy: Azarov Oleksyi D., Murashenko Oleksandr G., Katsiv Semen S., Gromaszek Konrad, Duskazaev Gali, Ussatova Olga
Dyscypliny:
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Wersja dokumentu: Drukowana | Elektroniczna
Arkusze wydawnicze: 0,5
Język: angielski
Strony: 285 - 296
Web of Science® Times Cited: 0
Scopus® Cytowania: 0
Bazy: Web of Science | Scopus
Efekt badań statutowych TAK
Materiał konferencyjny: NIE
Publikacja OA: NIE
Abstrakty: angielski | angielski
Glitches appear in digital-to-analog converters and lead to significant limitations of conversion accuracy and speed, which is critical for DAC and limits their usage, especially in the direct digital synthesis systems. This paper researches the causes, the specificity of the appearance of glitches in DAC and the possibility of using weight redundancy in order to reduce glitches in DAC. There had been suggested and analyzed the mathematical model of glitches in DAC with weight redundancy. There had also been proved that glitch amplitude is significantly influenced by the value of the voltage control of the DAC and the parasitic capacities of the digital keys. There had been shown that the attenuation time (duration) of the glitch is significantly influenced by the value of load resistance. The paper shows the expediency of using the DAC based on redundant positional number systems including Fibonacci p-codes. The simulation results prove that with the increase of the parameter p, the characteristics of glitch are significantly improved in comparison with the classical binary system, namely the amplitude and the attenuation time of glitch decrease
Glitches appear in digital-to-analog converters and lead to significant limitations of conversion accuracy and speed, which is critical for DAC and limits their usage, especially in the direct digital synthesis systems. This paper researches the causes, the specificity of the appearance of glitches in DAC and the possibility of using weight redundancy in order to reduce glitches in DAC. There had been suggested and analyzed the mathematical model of glitches in DAC with weight redundancy. There had also been proved that glitch amplitude is significantly influenced by the value of the voltage control of the DAC and the parasitic capacities of the digital keys. There had been shown that the attenuation time (duration) of the glitch is significantly influenced by the value of load resistance. The paper shows the expediency of using the DAC based on redundant positional number systems including Fibonacci p-codes. The simulation results prove that with the increase of the parameter p, the characteristics of glitch are significantly improved in comparison with the classical binary system, namely the amplitude and the attenuation time of glitch decrease.