A Wideband Injection-Locking Scheme and Quadrature Phase Generation in 65-nm CMOS
- Creators
- Raj, Mayank
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Emami, Azita
Abstract
A novel technique for wideband injection locking in an LC oscillator is proposed. Phased-lock-loop and injection-locking elements are combined symbiotically to achieve wide locking range while retaining the simplicity of the latter. This method does not require a phase frequency detector or a loop filter to achieve phase lock. A mathematical analysis of the system is presented and the expression for new locking range is derived. A locking range of 13.4-17.2 GHz and an average jitter tracking bandwidth of up to 400 MHz were measured in a high- Q LC oscillator. This architecture is used to generate quadrature phases from a single clock without any frequency division. It also provides high-frequency jitter filtering while retaining the low-frequency correlated jitter essential for forwarded clock receivers.
Additional Information
© 2014 IEEE. Manuscript received October 21, 2013; revised January 01, 2014 and February 25, 2014; accepted February 28, 2014. Date of publication March 13, 2014; date of current version April 02, 2014. The authors acknowledge the contributions of M. Monge, M. Nazari, and M. Loh for insightful technical discussions and STMicroelectronics for chip fabrication.Attached Files
Published - 06766809.pdf
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Additional details
- Eprint ID
- 45775
- Resolver ID
- CaltechAUTHORS:20140515-142406573
- Created
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2014-05-16Created from EPrint's datestamp field
- Updated
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2023-03-15Created from EPrint's last_modified field