A low-noise and low-power voltage-controlled oscillator

Author

Choong-Eui Lee ; Bai-Sun Kong

Author_Institution

Dept. of Semicond. Display Eng., Sungkyunkwan Univ., Suwon, South Korea

fYear

2014

fDate

3-6 Aug. 2014

Firstpage

374

Lastpage

377

Abstract

This paper presents a low-noise low-power voltage-controlled oscillator (VCO). The power consumption of the VCO is reduced by eliminating the redundant current flowing through the cross-coupled latch. The phase noise is also reduced by minimizing signal transition period in which noise current has critical impact on the phase noise. The proposed VCO is implemented in a 65-nm CMOS technology, whose evaluation results indicate that the proposed VCO operates from 982MHz to 1.64GHz with up to 34% less power consumption and up to 1.93 dBc/Hz less phase noise as compared to the conventional low-noise VCO.

Keywords

CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; low-power electronics; phase noise; power consumption; voltage-controlled oscillators; CMOS technology; VCO; cross-coupled latch; frequency 982 MHz to 1.64 GHz; low-noise voltage-controlled oscillator; low-power voltage-controlled oscillator; noise current; phase noise; power consumption; redundant current; signal transition period minimization; size 65 nm; Delays; Latches; Phase noise; Power demand; Transistors; Voltage-controlled oscillators; low noise; low power; phase noise; ring oscillator; voltage-controlled oscillator (VCO);

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2014 IEEE 57th International Midwest Symposium on

Conference_Location

College Station, TX

ISSN

1548-3746

Print_ISBN

978-1-4799-4134-6

Type

conf

DOI

10.1109/MWSCAS.2014.6908430

Filename

6908430