Phase Noise comparative analysis of LC oscillators in 28-nm CMOS through the Impulse Sensitivity Function

Author

Chlis, Ilias ; Pepe, Domenico ; Zito, Domenico

Author_Institution

Tyndall Nat. Inst., Cork, Ireland

fYear

2013

fDate

24-27 June 2013

Firstpage

85

Lastpage

88

Abstract

Comparative Phase Noise (PN) analysis of Hartley, Colpitts and Cross-coupled LC oscillators at 10 GHz in 28-nm CMOS technology is reported. The results of the PN direct plots in the Cadence-SpectreRF design environment are compared with the results obtained by the Impulse Sensitivity Function (ISF). The steps for deriving accurately the ISF are reported and discussed. The results show a very good agreement in a set of conditions, and confirm that the LC cross-coupled differential oscillator exhibits superior PN performance with respect to Colpitts and Hartley, and also that Colpitts exhibits slightly superior performance with respect to Hartley.

Keywords

CMOS analogue integrated circuits; microwave integrated circuits; microwave oscillators; phase noise; CMOS technology; Cadence-SpectreRF design environment; Colpitts oscillators; Hartley oscillators; ISF; LC cross-coupled differential oscillator; PN direct plots; frequency 10 GHz; impulse sensitivity function; phase noise comparative analysis; size 28 nm; CMOS integrated circuits; CMOS technology; Integrated circuit modeling; Phase noise; Sensitivity; impulse sensitivity function; oscillators; phase noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Ph.D. Research in Microelectronics and Electronics (PRIME), 2013 9th Conference on

Conference_Location

Villach

Print_ISBN

978-1-4673-4580-4

Type

conf

DOI

10.1109/PRIME.2013.6603102

Filename

6603102