A MOS temperature compensation function generator for TCXO using differential MOS multipliers

Author

Adachi, Takehiko ; Izumiya, Shoji

Author_Institution

Fac. of Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2009

fDate

20-24 April 2009

Firstpage

990

Lastpage

993

Abstract

The temperature compensated crystal oscillator (TCXO) is widely used as a stable frequency source of mobile communication equipment. A TCXO is composed of a temperature sensor, compensation voltage generator and voltage controlled crystal oscillator. The compensation function generator is a key component of a TCXO. In this paper, we have proposed a new MOS temperature compensation function generator using analog MOS multipliers. We have evaluated the performance of the proposed compensation function generator by ADS simulation. Simulation showed that the compensation function generator had very small temperature dependence itself and it could generate cubic function of temperature.

Keywords

MOS analogue integrated circuits; analogue multipliers; compensation; crystal oscillators; function generators; temperature sensors; voltage-controlled oscillators; ADS simulation; MOS temperature compensation function generator; TCXO; analog MOS multipliers; compensation voltage generator; differential MOS multipliers; temperature compensated crystal oscillator; temperature sensor; voltage controlled crystal oscillator; Adders; Circuit simulation; FETs; Frequency; Operational amplifiers; Signal generators; Temperature dependence; Temperature sensors; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

978-1-4244-3511-1

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2009.5168339

Filename

5168339