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LECTURE 130 – VOLTAGE-CONTROLLED OSCILLATORS

LECTURE 130 VCOs (6/10/03)Page 130-1 ECE 6440 - Frequency Synthesizers Allen - 2003 LECTURE 130 VOLTAGE-CONTROLLED OSCILLATORS (READING: [4,6,9])ObjectiveThe objective of this presentation is examine and characterize the types of VOLTAGE-CONTROLLED OSCILLATORS compatible with both discrete and integrated Characterization of VCO s OSCILLATORS - RC- LC- Relaxation OSCILLATORS - Ring OSCILLATORS - Direct digital synthesis (DDS) Varactors SummaryLecture 130 VCOs (6/10/03)Page 130-2 ECE 6440 - Frequency Synthesizers Allen - 2003 CHARACTERIZATION OF VOLTAGE-CONTROLLED OSCILLATORSI ntroduction to VOLTAGE-CONTROLLED OscillatorsWhat is an oscillator?

LECTURE 130 – VOLTAGE-CONTROLLED OSCILLATORS (READING: [4,6,9]) Objective The objective of this presentation is examine and characterize the types of voltage-controlled oscillators compatible with both discrete and integrated technologies. Outline • Characterization of VCO’s • Oscillators - RC - LC - Relaxation oscillators

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