Title :
A low power wideband 2.6 GHz CMOS injection-locked ring oscillator prescaler
Author :
Dehghani, Rasoul ; Atarodi, S.M.
Author_Institution :
Sharif Univ. of Technol., Tehran, Iran
Abstract :
A high speed and low power prescaler based on injection-locked ring oscillator is presented. The proposed prescaler uses an adaptive biasing to increase the locking range and to eliminate the sensitivity of the locking phenomena to temperature and process variation. The designed circuit can be used in a fractional-N frequency synthesizer. Prescaler operates properly in temperature range of -20°C to +100°C and input frequency range from 2.2 GHz to 2.6 GHz in all process corners while its maximum power dissipation is 2 mW at supply voltage of 1.5 V.
Keywords :
CMOS integrated circuits; frequency synthesizers; high-speed integrated circuits; injection locked oscillators; low-power electronics; prescalers; -20 to 100 degC; 1.5 V; 2 mW; 2.6 GHz; CMOS injection-locked ring oscillator prescaler; adaptive biasing; fractional-N frequency synthesizer; wideband high-speed low-power circuit; Circuit noise; Energy consumption; Frequency conversion; Frequency synthesizers; RF signals; Ring oscillators; Temperature distribution; Temperature sensors; Voltage-controlled oscillators; Wideband;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2003 IEEE
Print_ISBN :
0-7803-7694-3
DOI :
10.1109/RFIC.2003.1214033
