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2007 IEEE International Workshop on Radio-Frequency Integration Technology
This paper presents a simple architecture for 8-bit digital controlled oscillator (DCO) on 3-stages ring topology in TSMC 0.35um CMOS technology. A new schematic of tristate inverter is also proposed. The proposed tristate inverter has higher switching speed and low power consumption as compared to conventional one. The control digit changes the driving current that provides large tuning range from 333 MHz to 1472 MHz with very good linearity. The output voltage swing is constant and abovedoi:10.1109/rfit.2007.4443926 fatcat:svap54qzqzfydb72gjcnwgrge4