Title :
A novel voltage controlled high frequency crystal oscillator circuits
Author :
Rohde, Ulrich L. ; Poddar, Ajay K.
Author_Institution :
Fac. of EED, Univ. of Cottbus, Cottbus, Germany
Abstract :
We report an active mode-coupled 622 MHz crystal oscillator circuit as a cost-effective alternative of surface acoustic wave (SAW) resonator oscillator. Experimental evaluation of the implemented active mode-coupling mechanism shows that the latter may provide a superior performance in comparison with commercially available expensive SAW resonator based reference frequency standards. The typical measured phase noise for 622 MHz voltage controlled crystal oscillator (VCXO) at 10 kHz offset is better than -156 dBc/Hz with operating DC bias of 8 V and 23 mA.
Keywords :
UHF oscillators; crystal oscillators; voltage-controlled oscillators; SAW resonator; active mode-coupling mechanism; current 23 mA; frequency 622 MHz; phase noise; reference frequency standards; surface acoustic wave resonator oscillator; voltage 8 V; voltage controlled high frequency crystal oscillator circuits; Acoustic measurements; Acoustic waves; Circuits; Noise measurement; Phase measurement; Phase noise; Resonant frequency; Surface acoustic waves; Voltage control; Voltage-controlled oscillators; Crystal Oscillator; Mode; Phase Noise; SAW; VCO;
Conference_Titel :
Telecommunication in Modern Satellite, Cable, and Broadcasting Services, 2009. TELSIKS '09. 9th International Conference on
Conference_Location :
Nis
Print_ISBN :
978-1-4244-4382-6
Electronic_ISBN :
978-1-4244-4383-3
DOI :
10.1109/TELSKS.2009.5339499
