By Topic

A wide tuning 1.3 GHz LC VCO with fast settling noise filtering voltage regulator in 0.18 µm CMOS process

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

3 Author(s)
Akima, H. ; Epoch Microelectron., Inc., Tarrytown, NY, USA ; Dec, A. ; Suyama, K.

This paper presents a wide tuning LC voltage controlled oscillator (VCO) with integrated voltage regulator to minimize supply pushing. The integrated voltage regulator utilizes on-chip low-corner frequency noise filters to minimize the impact of regulator noise on VCO phase noise. One shot circuit is used with low-corner frequency noise filter to ensure fast settling. The VCO achieves current consumption of 15.9 mA with single integrated low-Q LC tank, tuning range of 620.8 MHz to 1384.5 MHz, phase noise of -128 dBc/Hz at 1 MHz offset from 1.3 GHz carrier at room temperature. With the noise filter, 9 dB improvement in phase noise is demonstrated in measurement. The frequency range can be extended to 38.8 MHz - 1384.5 MHz with integrated frequency dividers.

Published in:

Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE

Date of Conference:

23-25 May 2010