Title :
Pulse swallow frequency divider with idle DFFs automatically powered off
Author :
Haijun Gao ; Lingling Sun ; Jun Liu
Author_Institution :
Key Lab. for RF Circuits & Syst., Hangzhou Dianzi Univ., Hangzhou, China
Abstract :
A pulse swallow frequency divider with ultra-low power consumption is presented. The D flip-flops (DFFs) in the prescaler and the swallow counter are controlled by the modulus control signal and are automatically powered off when they have no contribution to the operation of the divider. Implemented in SMIC 65nm CMOS process, the proposed divider can operate from 0.6 to 4.2 GHz, and the power consumption is 1.35 mW when operating at 2.4 GHz.
Keywords :
CMOS integrated circuits; MMIC frequency convertors; UHF frequency convertors; UHF integrated circuits; field effect MMIC; flip-flops; frequency dividers; low-power electronics; SMIC CMOS process; automatic power-off; frequency 0.6 GHz to 4.2 GHz; idle D flip-flop; modulus control signal; power 1.35 mW; prescaler; pulse swallow frequency divider; size 65 nm; swallow counter; ultralow power consumption;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.0545
