Phase Noise reduction in Quadrature LC oscillators using inverter-based tail noise shaping

Author

Mukherjee, Jayanta ; Shojaei-Baghini, Maryam ; Johnson, Manoj

Author_Institution

Electr. Eng. Dept., Indian Inst. of Technol., Mumbai, India

fYear

2009

fDate

June 28 2009-July 1 2009

Firstpage

1

Lastpage

4

Abstract

A technique to reduce the Phase Noise of a Quadrature Differential Oscillator is described. The technique uses inverters to shape the tail noise of differential oscillators. In this approach an inverter is used to increase the ldquosquarenessrdquo of the switching signal from the differential output and thereby improve the switching speed. Simulations are done to obtain the results to verify the new technique. The simulation tool used is Eldo RF in Mentor Graphics and the technology used is UMC 0.18 um process.

Keywords

CMOS analogue integrated circuits; circuit noise; invertors; oscillators; phase noise; CMOS technology; Mentor Graphics; differential output; inverters; phase noise reduction; quadrature LC oscillators; quadrature differential oscillator; size 0.18 mum; tail noise shaping; 1f noise; Circuit topology; Inverters; MOSFET circuits; Noise shaping; Oscillators; Phase noise; Switching circuits; Tail; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems and TAISA Conference, 2009. NEWCAS-TAISA '09. Joint IEEE North-East Workshop on

Conference_Location

Toulouse

Print_ISBN

978-1-4244-4573-8

Electronic_ISBN

978-1-4244-4574-5

Type

conf

DOI

10.1109/NEWCAS.2009.5290467

Filename

5290467