VCOSYM -an application for the automatic design of ring VCOS

Author

Pereira, Pedro ; Fino, Helena

Author_Institution

Dept. of Electrotech. Eng., New Univ. of Lisbon, Lisbon

fYear

2005

fDate

11-14 Dec. 2005

Firstpage

1

Lastpage

4

Abstract

This paper presents an application for the automatic design of ring VCOs. In this application a VCO model based on the Npower transistor model is considered as a away of granting the accuracy of results for submicron technologies. In order to easily integrate any VCO previously designed into a PLL automatic design tool, a corresponding linear model of the VCO is automatically generated, yielding a simple and precise characterization for higher level system design. The design of a 150 MHz VCO using a seven stage ring topology is presented. The validity of the design obtained is checked against Hspice simulation of the circuit.

Keywords

UHF oscillators; circuit analysis computing; network synthesis; network topology; phase locked loops; voltage-controlled oscillators; Hspice simulation; Npower transistor model; PLL automatic design tool; VCOSYM; automatic design; frequency 150 MHz; higher level system design; linear model; ring VCOS; stage ring topology; voltage controlled oscillator; CMOS technology; Circuit simulation; Delay; Frequency; Phase locked loops; Topology; Tuning; Virtual colonoscopy; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2005. ICECS 2005. 12th IEEE International Conference on

Conference_Location

Gammarth

Print_ISBN

978-9972-61-100-1

Electronic_ISBN

978-9972-61-100-1

Type

conf

DOI

10.1109/ICECS.2005.4633504

Filename

4633504