Title :
A UHF SiGe push-pull quartz MEMS oscillator
Author :
Moyer, H.P. ; Yoon, Yong Soo ; Xu, Z.A. ; Nagele, R.G. ; Kirby, D.J. ; Kubena, R.L. ; Joyce, R.J. ; Bowen, R.L. ; Chang, D.T.
Author_Institution :
HRL Labs., LLC, Malibu, CA, USA
Abstract :
Compact oscillators at UHF frequencies and below are challenging for IC designers because of the large size of the passive components, particularly the inductors. An integrated SiGe push-pull sustaining circuit fabricated in the IBM 7WL process eliminates the need for inductors. Combining this circuit with and an external quartz resonator allowed the development of 708 MHz and 744 MHz fundamental mode oscillators. The lowest phase noise achieved was -103 dBc/Hz at a 1 kHz offset for the 708 MHz oscillator. Oscillator total power consumption is <;20 mW.
Keywords :
Ge-Si alloys; UHF oscillators; UHF resonators; crystal oscillators; micromechanical resonators; phase noise; semiconductor materials; silicon compounds; IBM 7WL process; UHF push-pull quartz MEMS oscillator fabrication; compact oscillator; frequency 1 kHz; frequency 708 MHz; fundamental mode oscillator; passive components; phase noise; quartz resonator; Inductors; Integrated circuits; Phase noise; Resonant frequency; Silicon germanium; Transistors; MEMS; Quartz; SiGe; oscillators; phase noise; push-pull; resonator;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859912
