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

A 125–1250 MHz Process-Independent Adaptive Bandwidth Spread Spectrum Clock Generator With Digital Controlled Self-Calibration

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

11 Author(s)
Ebuchi, T. ; Strategic Semicond. Dev. Center, Panasonic Corp., Moriguchi ; Komatsu, Y. ; Okamoto, T. ; Arima, Y.
more authors

A process-independent adaptive bandwidth spread-spectrum clock generator (SSCG) with digitally controlled self-calibration techniques is proposed. By adaptively calibrating the VCO gain (Kv) and charge-pump (CP) current over C (ICP/C), the SSCG can realize not only adaptive bandwidth but also process independence at each operating frequency. The innovative point is the adaptive bandwidth control using Kv and ICP/C calibration. This control enabled a test chip to keep a sharp triangular SSC profile while operating over a wide frequency range (125 to 1250 MHz). The variations of VCO gain and CP current are reduced to one third those of the conventional architecture. At 1250 Mbps (625 MHz) the reduction of spectrum peak amplitude is 18.6 dB which is 2.3 dB better than the reduction obtained without calibration.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:44 ,  Issue: 3 )

Date of Publication:

March 2009

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.