Title :
A novel voltage controlled crystal oscillator circuit
Author :
Rohde, Ulrich L. ; Poddar, Ajay K.
Author_Institution :
Synergy Microwave Corp., Paterson, NJ, USA
Abstract :
A novel approach reported in this paper optimizes the dynamic noise and drive sensitivity factor for achieving low phase noise VCXO circuits. An example of mode-feedback and differential coupled crystal oscillators are demonstrated for the validation of this approach, which minimizes the phase noise for inexpensive low quality factor (Q) crystal resonator based oscillators. The noise reduction techniques described in this work offers cost-effective signal source solutions for consumer electronics applications where use of expensive high Q crystal resonator is unaffordable.
Keywords :
Q-factor; circuit feedback; consumer electronics; crystal oscillators; phase noise; voltage-controlled oscillators; Q crystal resonator; consumer electronics applications; crystal resonator; differential coupled crystal oscillator; drive sensitivity factor; low phase noise VCXO circuit; low quality factor; mode-feedback; noise reduction technique; voltage controlled crystal oscillator circuit; Circuit noise; Consumer electronics; Phase noise; Q factor; Resonance; Resonant frequency; Temperature control; Temperature sensors; Voltage control; Voltage-controlled oscillators; Crystal resonator; Phase Noise; Q;
Conference_Titel :
Consumer Electronics, 2009. ISCE '09. IEEE 13th International Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-2975-2
Electronic_ISBN :
978-1-4244-2976-9
DOI :
10.1109/ISCE.2009.5156805
