A DIFFERENTIAL VCO USING THE DRAIN-CONNECTED-TO-BODY MOSFET

作者：Jang Sheng Lyang^*; Chang Chia Wei; Suchen Ming Hsiang; Shen Kuan Chun

来源：Microwave and Optical Technology Letters, 2009, 51(5): 1174-1177.

DOI：10.1002/mop.24282

• CMOS
• low-power
• differential VCO
• inductors
• drain-connected-to-body MOSFET

A new differential voltage-controlled oscillator (VCO) is designed and implemented at a 0.13 mu m CMOS 1P8M process. The designed circuit topology is an all nMOS LC-tank VCO, and a drain-connected-to-body MOSFET is used to enhance the VCO performance. At the supply voltage of 1.0 V, the output phase noise of the VCO is -109.66 dBc/Hz at 1 MHz offset frequency from the carrier frequency of 13.64 GHz, and the figure of merit is -187.15 dBc/Hz. Total power consumption is 3.3 mW. Tuning range is about 270 MHz, from 13.63 to 13.9 GHz, while the control voltage was tuned from 0 to 1.0 V.

• 出版日期2009-5