A wide band 1GHz multi channel digitally controlled oscillator (MDCO) for digital communication

Abstract

A wide-band 1 GHz DCO core is designed in a 0.5 micron CMOS process, this architecture is suitable for digital wireless and cable transceivers. As crystal-based-programmable-delay cells CBPDC control its dominant propagation delay, reduced the oscillator frequency thermal drift and jitter 

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