Title :
A 1.8V, sub-mW, over 100% locking range, divide-by-3 and 7 complementary-injection-locked 4 GHz frequency divider
Author :
Lo, Yung-Chung ; Chen, Hsien-Pu ; Silva-Martinez, Jose ; Hoyos, Sebastian
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A low-power wideband divide-by-odd-ratio ring-oscillator-based complementary-injection-locked frequency divider (CILFD) is proposed. The multiple-input complementary-injection scheme widens its locking range over 100% to sufficiently cover the PVT variations. The CILFD consumes dynamic power only with no additional power penalty for larger division ratios. The differential input and output are realized employing auxiliary cross-connected inverters. The CILFDs with division ratios of 3 and 7 are implemented in a 0.18 mum CMOS technology. The measurement results show a locking range from 1.4 to 4.4 GHz with an input incident power of -4 dBm. The power consumption while locked at 4.7 GHz is 0.9 mW from a single 1.8-V power supply.
Keywords :
frequency dividers; injection locked oscillators; invertors; auxiliary cross-connected inverters; complementary-injection-locked frequency divider; frequency 4 GHz; locking range; low-power wideband divide-by-odd-ratio ring-oscillator; power 0.9 mW; voltage 1.8 V; CMOS technology; Energy consumption; Frequency conversion; Inverters; Power measurement; Power supplies; Wideband;
Conference_Titel :
Custom Integrated Circuits Conference, 2009. CICC '09. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-4071-9
Electronic_ISBN :
978-1-4244-4073-3
DOI :
10.1109/CICC.2009.5280853
