Title :
A tail-current modulated VCO with adaptive-bias scheme
Author :
Narayanan, Aravind Tharayil ; Wei Deng ; Okada, Kenichi ; Matsuzawa, Akira
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
This paper proposes a tail-current modulated VCO with adaptive-bias scheme. The proposed adaptive-bias scheme ensures robust startup conditions for the tail-feedback VCO. A tail-feedback VCO using the proposed scheme is implemented in a 0.18-μm CMOS process. The measured phase noise is -119.3dBc/Hz at 1MHz offset with a power dissipation of 6.8mW at 4.6GHz.
Keywords :
CMOS integrated circuits; microwave oscillators; phase noise; voltage-controlled oscillators; CMOS process; adaptive-bias scheme; frequency 1 MHz; frequency 4.6 GHz; phase noise; power 6.8 mW; power dissipation; size 0.18 mum; tail-current modulation; tail-feedback VCO; Equivalent circuits; Phase noise; Robustness; Topology; Transistors; Voltage-controlled oscillators;
Conference_Titel :
Design Automation Conference (ASP-DAC), 2015 20th Asia and South Pacific
Conference_Location :
Chiba
Print_ISBN :
978-1-4799-7790-1
DOI :
10.1109/ASPDAC.2015.7058974
