A 750μW 1.575GHz temperature-stable FBAR-based PLL

A 750μW 1.575GHz temperature-stable FBAR-based PLL

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 -1...

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Bibliographische Detailangaben
Hauptverfasser: Hu, J.R., Wei Pang, Ruby, R.C., Otis, B.P.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic waves
Bandwidth
Charge pumps
Film bulk acoustic resonators
Frequency
Phase locked loops
Phase noise
Temperature distribution
Tuning
Voltage-controlled oscillators
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Beschreibung
Zusammenfassung: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.
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2009.5135548