Title :
A 6MHz CMOS reference clock generator with temperature and supply voltage compensation
Author :
Hyeonseok Hwang ; Chan-Hui Jeong ; Chankeun Kwon ; Hoonki Kim ; Youngmok Jeong ; Bumsoo Lee ; Soo-won Kim
Author_Institution :
Dept. of Electr. Eng., Korea Univ., Seoul, South Korea
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
A 6MHz CMOS reference clock generator is presented in 0.18um CMOS process. The proposed structure adopts a current starved type ring oscillator with low drop out (LDO), and temperature compensated current bias. This structure minimized the effects of supply and temperature to frequency error. The reference clock generator achieves frequency variation of less than ±0.26% against supply variation of 3V ~ 5V and ±0.22% against temperature variation of -20°C ~ 100°C.
Keywords :
CMOS integrated circuits; clocks; CMOS process; CMOS reference clock generator; current starved type ring oscillator; frequency 6 MHz; frequency error; frequency variation; low drop out; size 0.18 mum; supply voltage compensation; temperature compensated current bias; temperature variation; voltage 3 V to 5 V; CMOS integrated circuits; Clocks; Generators; Ring oscillators; Temperature; Voltage control;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-2474-8
DOI :
10.1109/ICSICT.2012.6467926
