A Low Power Consumption and Current Reuse VCO Circuit in Wireless USB Application
| Autor: | Kuei-Yao, Ting, 丁奎耀 |
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| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 Based on devices model of TSMC 0.18μm RFCMOS technology, the theory and simulation of voltage controlled oscillators (VCOs) integrated circuits are studied herein, and the further circuit design and optimization are presented and analyzed for working frequency in 9.7GHz. Firstly, this thesis briefly introduces the fundamental theory of different kinds of oscillators in the first three chapters. Secondly, we focus on low power consumption as the starting point to the simulation and analysis of three kinds of LC VCO circuits. The fundamental physics of LC oscillator is analyzed in detail in this paper. Thirdly, the design procedures of LC-VCO circuits and optimization schemes are presented. Accordingly we proposed a method for lower power consumption of VCO circuit with on-chip inductor and varactor selection. We focus on the Wireless Universal Serial Bus（WUSB） application with VCO oscillation frequency in 9.7GHz. The Agilent ADS RF simulator and the TSMC 0.18μm model are adopted to prevail the VCO integrated circuit design. According to the designed VCO circuits, the low power consumption as key performance index is used to fine-tune VCO circuit. This paper is presented the designed VCO by using TSMC 0.18μm standard CMOS process via National Chip Implement Center（CIC）foundry chip service. The final results show that tuning frequency range in 625MHz/V and phase noise of -106dBc@1MHz at frequency in 8.63GHz under 1.1V VDD voltage for power consumption in 1.36mW are obtained. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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