Title :
A 750μW 1.575GHz temperature-stable FBAR-based PLL
Author :
Hu, Julie R. ; Pang, Wei ; Ruby, Richard C. ; Otis, Brian P.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
A 1.575 GHz phase-locked loop (PLL) using a bulk acoustic wave resonator (FBAR) based VCO is presented. Close-in phase noise is suppressed by the loop, while high-offset noise is suppressed by the extremely high Q (>2000) VCO. This technique results in a 750 muW PLL with phase noise of -82 and -138 dBc/Hz at 1 kHz and 1 MHz offset, respectively. A temperature-compensated FBAR stack is described, allowing quartz locking over a -10 to 100degC temperature range.
Keywords :
UHF oscillators; bulk acoustic wave devices; charge pump circuits; phase locked loops; surface acoustic wave resonators; temperature measurement; thermal stability; voltage-controlled oscillators; VCO; bulk acoustic wave resonator; close-in phase noise; frequency 1.575 GHz; high-offset noise; phase-locked loop; power 750 muW; quartz locking; temperature -10 degC to 100 degC; temperature-stable FBAR-based PLL; Acoustic waves; Bandwidth; Charge pumps; Film bulk acoustic resonators; Frequency; Phase locked loops; Phase noise; Temperature distribution; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-3377-3
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2009.5135548
