A 750μW 1.575GHz Temperature-Stable FBAR-Based PLL
نویسندگان
چکیده
A 1.575GHz phase-locked loop (PLL) using a bulk acoustic wave resonator (FBAR) based VCO is presented. Closein 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 750μW PLL with phase noise of -82 and -138dBc/Hz at 1kHz and 1MHz offset, respectively. A temperature-compensated FBAR stack is described, allowing quartz locking over a -10 to 100 ◦C temperature range.
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