By Topic

A 46- \mu\hbox {W} Self-Calibrated Gigahertz VCO for Low-Power Radios

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

4 Author(s)
Xuan Zhang ; Dept. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA ; Mukhopadhyay, I. ; Dokania, R. ; Apsel, A.B.

This brief presents a 46 μW 0.8-2 GHz tunable oscillator with built-in self-calibrated process, supply voltage, and temperature compensation for applications in low-power radios. With single-point current calibration at room temperature, the proposed voltage-controlled oscillator (VCO) achieves 2.24% frequency accuracy against process variation, 1.6% frequency shift over 0.85- to 1.15-V supply voltage, and 167-ppm/°C temperature sensitivity between -7°C and 76°C. The sub-135-pJ on-chip self-calibration is based on a successive approximation scheme. Our design shows 3.4× improved process variation tolerance, 45× improved supply sensitivity, and 5.2× improved temperature sensitivity, as compared with the free-running VCO without self-calibration. Measurements are taken from 94 chips fabricated in two different lots in Taiwan Semiconductor Manufacturing Company 65-nm CMOS process.

Published in:

Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:58 ,  Issue: 12 )