Design of Low Noise 16-bit CMOS Digitally Controlled Oscillator

Abstract

In this paper, a new differential delay cell is proposed and 16-bit Digital Controlled Oscillator (DCO) based on proposed delay cell is designed. The 16-bit DCO consist of 4-stages differential delay cell in ring structure and a digital control scheme has been used to improved noise characteristics. The structure of the DCO utilizes dual delay path… (More)

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