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Wideband Low Power Voltage-Controlled Oscillator Design

Author: LuChao
Tutor: ZhouJianJun
School: Shanghai Jiaotong University
Course: Circuits and Systems
Keywords: Voltage Controlled Oscillator Phase Noise Low power consumption Broadband
CLC: TN752
Type: Master's thesis
Year: 2011
Downloads: 167
Quote: 0
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Abstract


In recent years , wireless communication technology advancing digital television broadcasting system is the world flourish . DVB standard in the European Telecommunications Standards Institute (ETSI) , the United States and Japan have proposed their own digital TV standard , recently , China also advanced satellite broadcasting system (ABS-S) standard . This paper studies for the digital TV receiver RF front - end broadband low-power VCO design articles from the point of view of the frequency synthesizer , the analysis of the phase-locked loop frequency synthesizer module , and gives the simple circuit ; systematic exposition of the principle and implementation of inductor-capacitor voltage-controlled oscillator , innovative use of dual-core technology to solve the constraints between the VCO frequency range and power consumption ; detailed analysis of the system phase noise requirements , summarizes the model and the generation mechanism of the phase noise , and shows the method of reducing phase noise . In this paper, the TSMC 0.18μm CMOS aluminum craft designed for digital television RF receiver front-end broadband low-power voltage-controlled oscillator . Oscillator frequency range 2.2GHz-4.8GHz, 2V supply voltage , the voltage-controlled oscillator power consumption approximately 4.0mA, the power consumption of the output buffer of about 1.6mA . The oscillation frequency of 4.4GHz when 10KHz, 100KHz, 1MHz frequency offset phase noise were -72.01dBc/Hz.-98.55dBc/Hz -120.7dBc/Hz, the oscillation frequency of 2.2GHz , 10KHz, 100KHz , 1MHz frequency the partial phase noise were -83.02dBc/Hz.-106.7dBc/Hz and -127.4dBc/Hz .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Oscillation technique,the oscillator > Oscillator
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