title: A digitally compensated 1.5 GHz CMOS/FBAR frequency reference.
abstract: A temperature-compensated 1.5 GHz film bulk acoustic wave resonator (FBAR)-based frequency reference implemented in a 0.35 microm CMOS process is presented. The ultra-small form factor (0.79 mm x 1.72 mm) and low power dissipation (515 microA with 2 V supply) of a compensated FBAR oscillator present a promising alternative for the replacement of quartz crystal frequency references. The measured post-compensation frequency drift over a 0-100 degrees C temperature range is < +/- 10 ppm. The measured oscillator phase noise is -133 dBc/Hz at 100 kHz offset from the 1.5 GHz carrier.
authors.affiliation: Department of Electrical Engineering, University of Washington, Seattle, WA, USA. shailesh@u.washington.edu
authors.forename: Shailesh
authors.initials: S
authors.lastname: Rai
authors.forename: Ying
authors.initials: Y
authors.lastname: Su
authors.forename: Wei
authors.initials: W
authors.lastname: Pang
authors.forename: Richard
authors.initials: R
authors.lastname: Ruby
authors.forename: Brian
authors.initials: B
authors.lastname: Otis