Frequency synthesis for a low-power 2.4 GHz receiver using a BAW oscillator and a relaxation oscillator

Author

Chabloz, Jérémie ; Ruffieux, David ; Vouilloz, Alexandre ; Tortori, Paola ; Pengg, Franz ; Müller, Claude ; Enz, Christian

Author_Institution

Swiss Center for Electron. & Microtechnol., Neuchatel

fYear

2007

fDate

11-13 Sept. 2007

Firstpage

492

Lastpage

495

Abstract

In this paper, a solution to realize local oscillators (LO) for a low power super-heterodyne receiver is presented. The first oscillator uses a bulk acoustic wave (BAW) resonator with high Q-factor. A quasi- harmonic quadrature relaxation oscillator with large tuning range is used to compensate for variations in the first oscillator and to cover the entire bandwidth for multiple channel selection.

Keywords

Q-factor; bulk acoustic wave devices; relaxation oscillators; resonators; superheterodyne receivers; BAW oscillator; Q-factor; UHF receiver; bulk acoustic wave resonator; frequency 2.4 GHz; frequency synthesis; low-power receiver; multiple channel selection; quadrature relaxation oscillator; quasiharmonic relaxation oscillator; super-heterodyne receiver; Capacitors; Circuit optimization; Energy consumption; Frequency synthesizers; Local oscillators; Phase noise; Q factor; Radio frequency; Resonance; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid State Circuits Conference, 2007. ESSCIRC 2007. 33rd European

Conference_Location

Munich

ISSN

1930-8833

Print_ISBN

978-1-4244-1125-2

Type

conf

DOI

10.1109/ESSCIRC.2007.4430349

Filename

4430349