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A 0.06 mm ^{2} 11 mW Local Oscillator for the GSM Standard in 65 nm CMOS

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6 Author(s)
Stefano Dal Toso ; Dipt. di Ing. dell''Inf., Univ. di Padova, Padova, Italy ; Andrea Bevilacqua ; Marc Tiebout ; Nicola Da Dalt
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GSM-compliant local oscillator consuming a tiny die area of only 0.06 mm and drawing 9 mA from a 1.2 V supply has been designed in a 65 nm CMOS process using thin-oxide devices only. The system is made of a 13 to 15 GHz LC VCO followed by a divide-by-four injection-locked frequency divider. The divider employs a ring oscillator-based topology leading to a two octave locking range with limited area and power consumption. The phase noise at the output of the divider is below -133 dBc/Hz at 3 MHz offset over the tuning range.

Published in:

IEEE Journal of Solid-State Circuits  (Volume:45 ,  Issue: 7 )
IEEE RFIC Virtual Journal
IEEE RFID Virtual Journal