A 1.5GHz CMOS/FBAR frequency reference with ±10ppm temperature stability

Author

Rai, Shailesh ; Su, Ying ; Dobos, Aron ; Kim, Richard ; Ruby, Richard ; Pang, Wei ; Otis, Brian

Author_Institution

Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA

fYear

2009

fDate

20-24 April 2009

Firstpage

385

Lastpage

387

Abstract

A temperature compensated 1.5 GHz FBAR-based frequency reference implemented in a 0.35 mum CMOS process is presented. The ultra-small form factor and low power dissipation of a temperature compensated FBAR oscillator presents a promising alternative for replacement of quartz crystal frequency references. The measured frequency post-compensation drift over a 0-100degC temperature range is <20 ppm. The measured phase noise is -125 dBc/Hz at 100 kHz offset from carrier. The overall system power consumption is 960 muW.

Keywords

CMOS integrated circuits; acoustic resonators; bulk acoustic wave devices; compensation; oscillators; CMOS process; FBAR oscillator; FBAR-based frequency reference; film bulk acoustic wave resonator; frequency 1.5 GHz; frequency 100 kHz; low power dissipation; power 960 muW; power consumption; quartz crystal frequency reference; size 0.35 mum; temperature 0 C to 100 C; temperature compensation; temperature stability; ultra-small form factor; CMOS process; Film bulk acoustic resonators; Frequency measurement; Noise measurement; Oscillators; Phase measurement; Phase noise; Power dissipation; Stability; Temperature distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

978-1-4244-3511-1

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2009.5168206

Filename

5168206