Title :
An inductorless frequency divider with 15GHz locking range using 90nm CMOS technology
Author :
Hsu, Heng-Ming ; Chou, Yi-Te ; Hsu, Yo-Hao ; Shu, Yue-Shiang
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
Abstract :
The work proposed an inductorless divider using ring oscillator topology to save chip area and enhance the locking range. The topology uses two techniques to enhance the transconductance (gm) for increasing locking range. To validate the proposed circuit, the chip was fabricated using TSMC 90nm CMOS technology. The core circuit only occupies an area of 70.3 ·80.15μm2. Measurement shows the input frequency sweeps from 22GHz to 37GHz and results in a 15GHz locking range.
Keywords :
CMOS integrated circuits; frequency dividers; TSMC CMOS technology; chip area; frequency 15 GHz; frequency 22 GHz to 37 GHz; inductorless divider; inductorless frequency divider; locking range; ring oscillator topology; size 90 nm; transconductance; CMOS integrated circuits; CMOS technology; Frequency measurement; Mixers; Topology; Transistors; Double-balanced mixer; gm-boosted amplifier; inductorless frequency divider; injection locked;
Conference_Titel :
Circuits and Systems (ISCAS), 2012 IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0218-0
DOI :
10.1109/ISCAS.2012.6272065
