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ROUBAL, Z.
Originální název
The Analyse of butler oscilator and power dissipation in the crystal unit
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
In many applications, for example a direct digital synthesis, it is necessary to use the high quality and on higher overtone working crystal oscillator. One of the best circuits for this purpose is Butler oscillator as emitter follower. By this circuit is possible to design a high frequency oscillator working up to hundred megahertz. In this paper the design of the Butler oscillator at 2^26 Hz by use of a feedback loop analysis in resonance frequency vicinity of the crystal is showed. Influence of the circuit elements values is calculated in Matlab environment. This is important for low phase noise (high short-term stability) oscillator design and stability of the output signal amplitude. The design is oriented on the maximum short-term stability. The next step is determination and optimalization of the power dissipation in the crystal unit. For decreasing of this power dissipation we use limiting diodes.
Klíčová slova
Butler oscillator, piezoelectric crystal unit, the power dissipation in the crystal unit, phase noise
Autoři
Rok RIV
2011
Vydáno
28. 4. 2011
Nakladatel
NOVPRESS s.r.o
Místo
Brno
ISBN
978-80-214-4273-3
Kniha
Proceedings of the 17 th conference student EEICT 2011 - volume 3
Číslo edice
1
Strany od
376
Strany do
380
Strany počet
5
BibTex
@inproceedings{BUT36248, author="Zdeněk {Roubal}", title="The Analyse of butler oscilator and power dissipation in the crystal unit", booktitle="Proceedings of the 17 th conference student EEICT 2011 - volume 3", year="2011", number="1", pages="376--380", publisher="NOVPRESS s.r.o", address="Brno", isbn="978-80-214-4273-3" }