A Performance Prediction of Clock Generation PLLs : A Ring Oscillator Based PLL and an LC Oscillator Based PLL(Integrated Electronics)
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概要
- 論文の詳細を見る
This paper discusses performance prediction of clock generation PLLs using a ring oscillator based VCO (RingVCO) and an LC oscillator based VCO (LCVCO). For clock generation, we generally design PLLs using Ring VCOs because of their superiority in tunable frequency range, chip area and power consumption, in spite of their poor noise characteristics. In the future, it is predicted that operating frequency will rapidly increase and supply voltage will dramatically decrease. Besides, rigid noise performances will be required. In this condition, it is not clear neither how performances of both PLLs will change nor the performance differences between both PLLs will change. This paper predicts and compares future performances of PLLs using a Ring VCO and an LCVCO with a qualitative evaluation by an analytical approach and with design experiments based on predicted process parameters. Our discussion reveals that the relative performance difference between both PLLs will be unchanged. As technology advances, power dissipation and chip area of both PLLs favorably decrease, while, noise characteristics of both PLLs degrade, which indicates low noise PLL circuit design will be more important.
- 社団法人電子情報通信学会の論文
- 2005-03-01
著者
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Onodera Hidetoshi
Department of Communications and Computer Engineering, Kyoto University
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Onodera Hidetoshi
Department Of Communications And Computer Engineering Graduate School Of Informatics Kyoto Universit
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HASHIMOTO Masanori
Department of Information Systems Engineering, Osaka University
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MIYAZAKI Takahito
Department of Communications and Computer Engineering, Kyoto University
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Hashimoto Masanori
Department Of Communications And Computer Engineering Kyoto University
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Miyazaki Takahito
Department Of Communications And Computer Engineering Kyoto University
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Hashimoto Masanori
Department Of Breast And Endocrine Surgery University Of Tokyo
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Onodera Hidetoshi
Department of Communication and Computer Engineering, Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan
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