Title :
A ow-Phase- oise CMOS Ring Oscillator with ifferential Control
Author :
Zhi-Qiang Lu ; Feng-Chang Lai ; Ma, Jian-Guo
Author_Institution :
Microelectron. Center, Harbin Inst. of Technol.
Abstract :
A 900-MHz two-stage CMOS voltage controlled ring oscillator (VCRO) with differential control is presented. The circuit is designed in a 0.18-mum CMOS technology and operated on a 1.8-V supply voltage. The VCRO has a tuning range of 350 MHz to 1020 MHz. At 900 MHz, the phase noise of the VCRO is -109.2 dBc/Hz at 600-KHz frequency offset with power consumption of 43.7 mW
Keywords :
CMOS integrated circuits; UHF oscillators; integrated circuit noise; phase noise; voltage-controlled oscillators; 0.18 micron; 1.8 V; 350 to 1020 MHz; 43.7 mW; CMOS voltage controlled ring oscillator; VCRO; differential control; low phase noise; tuning range; CMOS technology; Circuits; Control systems; Delay; Frequency; Inverters; Phase noise; Ring oscillators; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
ASIC, 2005. ASICON 2005. 6th International Conference On
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9210-8
DOI :
10.1109/ICASIC.2005.1611385
