Phase noise in bipolar and CMOS VCO´s - an analytical comparison

Author

Koc, Baris ; Koukab, Adil ; Dundar, Gunhan

Author_Institution

Dept. of Electr. & Electron. Eng., Bogazici Univ., Istanbul

fYear

2006

fDate

21-24 May 2006

Abstract

As RF IC design has become more prevalent and more demanding, the need for a more precise VCO phase noise model has arisen. For both MOS and bipolar VCO´s new formulas are still being proposed to model the phase noise, which is a key factor for a precise oscillator. In this paper, a previous phase noise model for a bipolar VCO as presented in A. Tasic and W. A. Serdijn (2002) is refuted and the formulas developed for MOS VCO phase noise calculations based in J. J. Rael and A. Abidi (2000) are adapted to bipolar VCO. Then, the results are compared and some conclusions are drawn for the comparison of these oscillators

Keywords

CMOS integrated circuits; bipolar integrated circuits; integrated circuit noise; phase noise; radiofrequency integrated circuits; radiofrequency oscillators; voltage-controlled oscillators; CMOS VCO; RF IC design; bipolar VCO; phase noise model; precise oscillator; 1f noise; Active noise reduction; CMOS technology; Circuit noise; Noise generators; Phase noise; Semiconductor device modeling; Tail; Voltage-controlled oscillators; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on

Conference_Location

Island of Kos

Print_ISBN

0-7803-9389-9

Type

conf

DOI

10.1109/ISCAS.2006.1693926

Filename

1693926