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This paper reports a Digitally Controlled Oscillator (DCO) with 20kHz frequency resolution. This is the first DCO implementing capacitor delta tuning and Dynamic Element Matching (DEM) to suppress process variations and mismatches between small capacitor deltas. The DCO is fabricated in 0.13μm CMOS IBM technology. The proposed DEM technique reduced the process variations and mismatches from 95% to...
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