Title :
A Tuned-Input Tuned-Output VCO in 0.18μm CMOS
Author :
Shekhar, Sudip ; Aniruddhan, Sankaran ; Allstot, David J.
Author_Institution :
Univ. of Washington, Seattle
Abstract :
A fully-integrated 2.3-2.7 GHz differential voltage-controlled oscillator derived from the classical tuned-input tuned-output (TITO) topology in 0.18 mum CMOS is presented. It uses an auxiliary resonant tank for additional noise suppression and achieves measured phase noise values of -110 dBc/Hz and -130.5 dBc/Hz at 100 kHz and 1 MHz frequency offsets, respectively. With a current consumption of 7.5 mA from a 1.8 V supply, it achieves a figure-of-merit of 187.2 dBc/Hz.
Keywords :
CMOS integrated circuits; oscillators; CMOS; current 7.5 mA; differential voltage-controlled oscillator; frequency 2.3 GHz to 2.7 GHz; noise suppression; tuned-input tuned-output VCO; tuned-input tuned-output topology; voltage 1.8 V; CMOS technology; Contracts; Frequency measurement; Noise measurement; Phase measurement; Phase noise; Radiofrequency integrated circuits; Resonance; Topology; Voltage-controlled oscillators; TITO; Voltage-controlled oscillator; dual-tank; phase noise; transformer;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0530-0
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2007.380957
