A 0.5V 2.41GHz, 196.3dBc/Hz FoM differential colpitts VCO with an output voltage swing exceeding supply and ground potential requiring no additional inductor
Joo-Myoung Kim, S. Kim, Seok-Kyun Han, Sang-Gug Lee
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引用次数: 3
Abstract
A low-voltage differential Colpitts VCO that achieves an output voltage swing above the supply voltage and below the ground potential to improve the phase noise while requiring no additional inductor for a small chip area is proposed. Implemented in a 65nm CMOS process, the proposed VCO achieves the phase noise of -131.05dBc/Hz at an offset of 1MHz from an oscillation frequency of 2.41GHz and a FoM of 196.3dBc/Hz while dissipating 1.74mW from a 0.5V supply.