Cart (Loading....) | Create Account
Close category search window

A 1.4GHz CMOS Low-Phase Noise Voltage-Controlled Ring Oscillator

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Ghani, A.A.A. ; UiTM Shah Alam, Shah Alam ; Saparon, A.

This paper describes a voltage controlled ring oscillator (VCO) with low-phase-noise. The VCO consists of two-stage fully differential delay cells proposed by Yan, has been analyzed and redesigned for its full switching performance using TSMC 0.18 mum CMOS technology with 2 V power supply. A fully switching differential delay cell is employed to reduce the phase noise of the ring oscillator. It utilizes dual-delay path techniques to achieve high oscillation frequency and obtain a wide tuning range. The VCO exhibits a very wide tuning range from 523 to 2111 MHz, which corresponds to a tuning range of 49.4%. Its power consumption is only 14.79 mW and its phase noise is about -103.3 dBc/Hz at 600 kHz offset from 1400 MHz. The phase noise of the VCO can be improved when more stages are applied in this VCO. Four-stages of differential delay are implemented later and it achieves -113.0595 dBc/Hz of phase noise which is 7.06 dB less than the first design. However, its power consumption is increased substantially to 100.3360 mW.

Published in:

Research and Development, 2007. SCOReD 2007. 5th Student Conference on

Date of Conference:

12-11 Dec. 2007

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.