Title :
Superharmonic injection-locked frequency dividers
Author :
Rategh, Hamid R. ; Lee, Thomas H.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
Injection-locked oscillators (ILOs) are investigated in a new theoretical approach. A first-order differential equation is derived for the noise dynamics of ILOs. A single-ended injection-locked frequency divider (SILFD) is designed in a 0.5-μm CMOS technology operating at 1.8 GHz with more than 190 MHz locking range while consuming 3 mW of power. A differential injection-locked frequency divider (DILFD) is designed in a 0.5-μm CMOS technology operating at 3 GHz and consuming 0.45 mW, with a 190 MHz locking range. A locking range of 370 MHz is achieved for the DILFD when the power consumption is increased to 1.2 mW
Keywords :
CMOS integrated circuits; UHF integrated circuits; frequency dividers; injection locked oscillators; integrated circuit noise; 0.45 mW; 0.5 micron; 1.2 mW; 1.8 GHz; 190 MHz; 3 GHz; 3 mW; 370 MHz; CMOS technology; DILFD; first-order differential equation; injection-locked oscillators; locking range; noise dynamics; power consumption; superharmonic injection-locked frequency dividers; CMOS technology; Differential equations; Energy consumption; Frequency conversion; Frequency synthesizers; Injection-locked oscillators; Integrated circuit technology; Narrowband; Varactors; Wideband;
Journal_Title :
Solid-State Circuits, IEEE Journal of
