This work presents a robust, low area, spectral pure 65 nm VCO for mm-wave applications. The varactor, an inversion mode MOS, takes advantage of the minimum feature provided by the technology to optimize capacitance tuning range and Q. The inductor is a 1 turn spiral. A combination of digital and analog tuning is chosen to lower VCO gain. Prototypes show the following measured results: 11.5% frequency tuning range around 54 GHz, phase noise at 10 MHz of -116 dBc/Hz and -122 dBc/Hz maximumand minimum in band, respectively. Power consumption is 7.2 mW.
An 11.5% Frequency Tuning, -184 dBc/Hz Noise FOM 54 GHz VCO / S., Bozzola; D., Guermandi; Mazzanti, Andrea; F., Svelto. - STAMPA. - (2008), pp. 657-660. (Intervento presentato al convegno 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 tenutosi a Atlanta, GA, usa nel Giugno 2008) [10.1109/RFIC.2008.4561523].
An 11.5% Frequency Tuning, -184 dBc/Hz Noise FOM 54 GHz VCO
MAZZANTI, Andrea;
2008
Abstract
This work presents a robust, low area, spectral pure 65 nm VCO for mm-wave applications. The varactor, an inversion mode MOS, takes advantage of the minimum feature provided by the technology to optimize capacitance tuning range and Q. The inductor is a 1 turn spiral. A combination of digital and analog tuning is chosen to lower VCO gain. Prototypes show the following measured results: 11.5% frequency tuning range around 54 GHz, phase noise at 10 MHz of -116 dBc/Hz and -122 dBc/Hz maximumand minimum in band, respectively. Power consumption is 7.2 mW.
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