Title :
A CMOS direct injection-locked oscillator topology as high-frequency low-power frequency divider
Author_Institution :
Corporate Res., Infincon Technol. AG, Munich, Germany
fDate :
7/1/2004 12:00:00 AM
Abstract :
An injection-locked oscillator topology is presented, based on MOS switches directly coupled to the LC tank of well-known LC oscillators. The direct injection-locking scheme features wide locking ranges, a very low input capacitance, and highest frequency capability. The direct locking and the tradeoff between power consumption and tank quality factor is verified through three test circuits in 0.13-μm standard CMOS, aiming at input frequency ranges of 50, 40, and 15 GHz. The 40- and 50-GHz dividers consume 3 mW with locking ranges of 80 MHz and 1.5 GHz. The 15-GHz divider consumes 23 mW and features a locking range of 2.8 GHz.
Keywords :
CMOS integrated circuits; MOSFET; frequency dividers; injection locked oscillators; low-power electronics; 0.13 micron; 1.5 GHz; 15 GHz; 2.8 GHz; 23 mW; 3 mW; 40 GHz; 50 GHz; 80 MHz; CMOS; LC oscillators; LC tank; MOS switches; direct injection-locking scheme; frequency capability; high-frequency low-power frequency divider; injection-locked oscillator topology; input capacitance; locking ranges; power consumption; Capacitance; Circuit topology; Energy consumption; Frequency conversion; Injection-locked oscillators; Logic; Phase locked loops; Switches; Tail; Voltage-controlled oscillators; CMOS; VCO; divider; injection locking; low power; oscillator; voltage-controlled oscillator;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2004.829937
