Differential sub-harmonic injection lock VCO with fast start up

Nitzan Oz, Emanuel Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A VCO with a sub-harmonic injection lock mechanism at 28nm CMOS is being presented. The VCO tank was designed to oscillate at the K-band frequency, at 22.5GHz. The purpose of the injection lock is to synchronize the oscillator with an incident signal. The incident signal was generated as a square pulse wave which contains high harmonic content, allowing high frequency multiplication ratio. Phase noise of -122 dBc/Hz at 1 MHz offset and low side spurs of -40 dBm were obtained under differential injection lock mode with 16μm switch size, and frequency multiplication ratio of n=10. Exploitation of the injection lock switches enabled us to establish fast wake up mechanism - allowing the VCO amplitude to reach full swing after 3ns. Low power consumption of 4mW was obtained for the VCO circuit. The chip occupy a size of 0.64 mm2.

Original languageEnglish
Title of host publication2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016
ISBN (Electronic)9781509021529
DOIs
StatePublished - 4 Jan 2017
Event2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016 - Eilat, Israel
Duration: 16 Nov 201618 Nov 2016

Publication series

Name2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016

Conference

Conference2016 IEEE International Conference on the Science of Electrical Engineering, ICSEE 2016
Country/TerritoryIsrael
CityEilat
Period16/11/1618/11/16

Keywords

  • Fast wake up
  • Injection lock
  • mmW

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Hardware and Architecture
  • Artificial Intelligence
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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