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

fYear

2012

fDate

Oct. 29 2012-Nov. 1 2012

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICSICT.2012.6467926

Filename

6467926