Title :
A Low- Power Low-Voltage VCO with Wide Range Tuning Controlled by Adaptive Neural Network
Author :
Menbari, Babak ; Suratgar, Amir Abolfazl
Author_Institution :
Dept. of Electr. Eng., Arak Azad Univ.
Abstract :
In this paper a low power-low voltage operational transconductance amplifier and capacitor (OTA-C) oscillator based on a CMOS transconductor is proposed. The frequency of proposed VCO is controlled by adaptive neural network. OTA-C uses output cross coupled and interpolation. In this paper, a frequency tuning circuit for VCOs is introduced, so that the final relationship between oscillating frequency and input voltage is fixed and independent of the non-idealities. The adaptive neural network is applied for control of nonlinear parameters. The circuit has been fabricated in a standard 0.13mum CMOS process. Simulation results show a frequency tuning range from 52 to 164 MHz. The circuit uses 2V power supply with maximum 1.8 mW power consumption
Keywords :
CMOS integrated circuits; capacitors; circuit tuning; field effect MIMIC; low-power electronics; millimetre wave oscillators; neural chips; operational amplifiers; voltage-controlled oscillators; 0.13 micron; 1.8 mW; 2 V; 52 to 164 MHz; CMOS process; CMOS transconductor; OTA-C oscillator; adaptive neural network; capacitor; frequency tuning circuit; low-power low-voltage VCO; nonlinear parameter control; operational transconductance amplifier; voltage controlled oscillator; wide frequency range tuning; Adaptive control; Adaptive systems; Circuit optimization; Frequency; Low voltage; Neural networks; Programmable control; Transconductance; Tuning; Voltage-controlled oscillators;
Conference_Titel :
International Frequency Control Symposium and Exposition, 2006 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0074-0
Electronic_ISBN :
1-4244-0074-0
DOI :
10.1109/FREQ.2006.275449
