A dual core wideband CMOS LC VCO with low tuning sensitivity

Author

Wu, Ting ; Guo, Guiliang ; Yan, Yuepeng

Author_Institution

Inst. of Microelectron., Beijing, China

fYear

2012

fDate

6-9 Aug. 2012

Firstpage

1

Lastpage

2

Abstract

A dual core wideband CMOS LC VCO has been designed and fabricated in TSMC 0.25μm RF CMOS 1P5M process. Using a combination of a switched capacitor array and a switched varactor array, this VCO achieves a frequency tuning rang of 800MHz to 1730MHz with a control voltage varying from 0.2V-2.2V, while maintaining a tuning sensitivity of less than 50MHz/V.The measured single-side phase noise is -120dBc/Hz at a 1MHz offset from a 1060MHz carrier when the VCO core is drawing 8mA from a 2.5V supply.

Keywords

CMOS integrated circuits; phase noise; switched capacitor networks; voltage-controlled oscillators; RF CMOS IP5M process; TSMC; control voltage varying; current 8 mA; dual core wideband CMOS LC VCO; frequency 800 MHz to 1730 MHz; frequency tuning; low tuning sensitivity; single-side phase noise; switched capacitor array; switched varactor array; voltage 0.2 V to 2.2 V; voltage 2.5 V; Area measurement; CMOS integrated circuits; Sensitivity; Switches; Switching circuits; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics; Applications and Student Innovation (iWEM), 2012 IEEE International Workshop on

Conference_Location

Chengdu, Sichuan

Print_ISBN

978-1-4673-3000-8

Electronic_ISBN

978-1-4673-2998-9

Type

conf

DOI

10.1109/iWEM.2012.6320372

Filename

6320372