Programmable current biasing for low noise voltage controlled oscillators

Author

Melikyan, Vazgen ; Durgaryan, Armen

Author_Institution

Synopsys Armenia CJSC, Yerevan, Armenia

fYear

2011

fDate

9-12 Sept. 2011

Firstpage

47

Lastpage

50

Abstract

In this paper a programmable highly linear voltage-to-current conversion technique for low noise, wide tunable frequency range voltage controlled oscillator (VCO) is presented. The effect of VCO gain on phase locked loop (PLL) phase noise and frequency stability characteristics is addressed. The proposed solution offers digital calibration of VCO gain and frequency, using binary weighted thick oxide MOS devices. Results of simulations in deep submicron CMOS technology are presented and discussed.

Keywords

CMOS integrated circuits; calibration; frequency stability; phase locked loops; phase noise; programmable circuits; voltage-controlled oscillators; PLL phase noise; VCO gain; binary weighted thick oxide MOS devices; deep submicron CMOS technology; digital calibration; frequency stability characteristics; low noise voltage controlled oscillators; phase locked loop; programmable current biasing; programmable highly linear voltage-to-current conversion technique; Jitter; Noise; Phase locked loops; Resistors; Transistors; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Design & Test Symposium (EWDTS), 2011 9th East-West

Conference_Location

Sevastopol

Print_ISBN

978-1-4577-1957-8

Type

conf

DOI

10.1109/EWDTS.2011.6116572

Filename

6116572