Design of low-voltage wide tuning range CMOS multipass voltage-controlled ring oscillator

Author

Ren, Jie ; El-Sankary, Kamal ; El-Masry, Ezz

Author_Institution

Dept. of Elec. & Comp. Eng., Dalhousie Univ., Halifax, NS, Canada

fYear

2010

Firstpage

109

Lastpage

112

Abstract

This paper presents an 0.8-V power supply multi-pass loop ring oscillator. The oscillator employs cross-coupled PMOS transistors to improve phase noise characteristic and multi-pass loop to obtain wide frequency tuning range. The coarse and fine controlled signals are also applied to lower the noise sensitivity of the oscillator. Simulations using TSMC 90 nm CMOS technology shows 394MHz to 4.4GHz frequency tuning range and -94.6dBc/Hz at 1MHz offset from 4.4GHz. The power consumption is 11.2mW.

Keywords

CMOS integrated circuits; MOSFET; low-power electronics; phase noise; tuning; voltage-controlled oscillators; TSMC; cross-coupled PMOS transistor; frequency 1 MHz; frequency 394 MHz to 4.4 GHz; frequency tuning; low-voltage wide tuning range CMOS; multipass loop ring oscillator; multipass voltage-controlled ring oscillator; noise sensitivity; phase noise characteristic; power 11.2 mW; size 90 nm; voltage 0.8 V; Circuit optimization; Delay; Frequency; Phase noise; Power supplies; Ring oscillators; Tail; Tuning; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2010 53rd IEEE International Midwest Symposium on

Conference_Location

Seattle, WA

ISSN

1548-3746

Print_ISBN

978-1-4244-7771-5

Type

conf

DOI

10.1109/MWSCAS.2010.5548573

Filename

5548573