Title :
An on-chip CMOS relaxation oscillator with power averaging feedback using a reference proportional to supply voltage
Author :
Tokunaga, Yusuke ; Sakiyama, Shiro ; Matsumoto, Akinori ; Dosho, Shiro
Author_Institution :
Panasonic, Osaka
Abstract :
On-chip reference oscillators are required for low-cost single-chip applications including biomedical sensors, microcomputers, high-speed interfaces such as DDR l/F and HDMI (for initial negotiation), and SoCs. RC oscillators (including relaxation oscillators) were developed to realize on-chip oscillators with standard CMOS processes. In this paper, a power-averaging feedback (PAF) concept for accurate oscillators with low power and small area is presented.
Keywords :
CMOS integrated circuits; RC circuits; circuit feedback; reference circuits; relaxation oscillators; RC oscillators; on-chip CMOS relaxation oscillator; on-chip reference oscillators; power averaging feedback; 1f noise; Active filters; Delay; Feedback; Frequency; Phase noise; Switches; Temperature sensors; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference - Digest of Technical Papers, 2009. ISSCC 2009. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-3458-9
DOI :
10.1109/ISSCC.2009.4977479