Title :
A 1.9-GHz Si bipolar quadrature VCO with fully-integrated LC tank
Author :
Wakimoto, T. ; Konaka, S.
Author_Institution :
NTT Integrated Inf. & Energy Syst. Labs., Kanagawa, Japan
Abstract :
A fully monolithic voltage controlled oscillator with quadrature outputs has been implemented in a Si bipolar process with a cut-off frequency of 40 GHz. The circuit techniques to achieve highly accurate quadrature outputs as well as the low phase noise with low power dissipation are used. The phase and gain errors are less than 1 degree and 0.1 dB, respectively. The measured phase noise at a 600 kHz offset frequency from a 1.9 GHz center frequency is -123 dBc/Hz. The quadrature cores drain 16 mA from 2.7 V supply.
Keywords :
UHF integrated circuits; UHF oscillators; bipolar analogue integrated circuits; elemental semiconductors; integrated circuit noise; phase noise; silicon; voltage-controlled oscillators; 1.9 GHz; 16 mA; 2.7 V; 40 GHz; Si; Si bipolar process; Si bipolar quadrature VCO; fully-integrated LC tank; low phase noise; low power dissipation; monolithic voltage controlled oscillator; quadrature outputs; Circuit noise; Delay; Frequency synchronization; Impedance; Noise generators; Phase noise; Power dissipation; Tuning; Voltage; Voltage-controlled oscillators;
Conference_Titel :
VLSI Circuits, 1998. Digest of Technical Papers. 1998 Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-4766-8
DOI :
10.1109/VLSIC.1998.687992
