Open Access6.2 GHz 0.5 mW two‐dimensional oscillator array‐based injection‐locked frequency divider in 0.18 μm CMOS
Author(s) -
Yu Xiaopeng,
Song Xiong,
Lim Wei Meng,
Yeo KiatSeng
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.3653
Subject(s) - frequency divider , cmos , injection locking , optoelectronics , electrical engineering , frequency synthesizer , voltage controlled oscillator , materials science , engineering , phase locked loop , physics , phase noise , optics , voltage , laser
A new two‐dimensional oscillator array‐based injection‐locked frequency divider is proposed. Instead of using the conventional analogue tuning technique or the one‐dimensional delay chain, a two‐dimensional array is implemented to digitally and precisely control the total delay in the oscillator core. This makes it possible to achieve a programmable delay, hence attaining potential programmable division ratios for the injection‐locked divider. Fabricated in a standard 0.18 μm CMOS technology, a prototype chip, namely a divide‐by‐4/5 prescaler using this technique, is able to work up to 6.2 GHz with 0.5 mW power consumption from a 1.8 V supply voltage.