Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 2173-2180 |
| Journal | IEEE Transactions on Circuits and Systems Part 1: Regular Papers |
| Volume | 56 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2009 |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering
Free keywords
- CMOS RFICs
- impulse sensitivity function (ISF)
- quadrature oscillator.
- phase noise
- flicker noise