A time-variant analysis of fundamental 1/f3 phase noise in CMOS parallel LC-tank quadrature oscillators
Author
Summary, in English
This paper presents a rigorous time-variant analysis
of the 1/f MOS device noise upconversion into 1/f^3 phase noise
for two of the most popular parallel-coupled quadrature CMOS
harmonic oscillators. Simple closed-form equations for the fundamental
1/f^3 phase-noise spectrum are derived and validated
through SpectreRF simulations, proving that the two topologies
display remarkably different sensitivities to the low-frequency
noise sources. Based on the developed analysis, useful general
design insights are also presented.
of the 1/f MOS device noise upconversion into 1/f^3 phase noise
for two of the most popular parallel-coupled quadrature CMOS
harmonic oscillators. Simple closed-form equations for the fundamental
1/f^3 phase-noise spectrum are derived and validated
through SpectreRF simulations, proving that the two topologies
display remarkably different sensitivities to the low-frequency
noise sources. Based on the developed analysis, useful general
design insights are also presented.
Publishing year
2009
Language
English
Pages
2173-2180
Publication/Series
IEEE Transactions on Circuits and Systems Part 1: Regular Papers
Volume
56
Issue
10
Document type
Journal article
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Keywords
- CMOS RFICs
- impulse sensitivity function (ISF)
- quadrature oscillator.
- phase noise
- flicker noise
Status
Published
Research group
- Data converters & RF
ISBN/ISSN/Other
- ISSN: 1549-8328