Temperature Compensated 2.45 GHz Ring Oscillator with Double Frequency Control

Author

Rahajandraibe, W. ; Zaïd, L. ; De Beaupré, V. Cheynet ; Bas, G.

Author_Institution

Provence Univ., Marseille

fYear

2007

fDate

3-5 June 2007

Firstpage

409

Lastpage

412

Abstract

A 2.4 GHz voltage controlled oscillator (VCO) with double frequency control has been designed using a CMOS 0.28 mum process for use in frequency synthesizer and open loop FSK modulation circuit in multi-band IEEE 802.15.4 wireless personal area network (PAN) applications. This double control allows the VCO to maintain its center frequency and tuning range throughout -40degC to 120degC. Simulations and measurements show the sensitivity of the VCO center frequency has been reduced from 1300 ppm/degC to 73 ppm/degC, while a phase noise of -96 dBc/Hz @ 1MHz offset with a power consumption of 18 mW have been achieved.

Keywords

frequency control; frequency shift keying; frequency synthesizers; personal area networks; voltage-controlled oscillators; double frequency control; frequency 2.4 GHz; frequency synthesizer; open loop FSK modulation circuit; size 0.28 mum; temperature compensated ring oscillator; voltage controlled oscillator; wireless personal area network applications; CMOS process; Circuit optimization; Frequency control; Frequency shift keying; Frequency synthesizers; Open loop systems; Ring oscillators; Tuning; Voltage-controlled oscillators; Wireless personal area networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

ISSN

1529-2517

Print_ISBN

1-4244-0530-0

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2007.380912

Filename

4266460