Title :
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
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;
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2009.5168339
