Title :
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
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;
Conference_Titel :
Solid State Circuits Conference, 2007. ESSCIRC 2007. 33rd European
Conference_Location :
Munich
Print_ISBN :
978-1-4244-1125-2
DOI :
10.1109/ESSCIRC.2007.4430349
