A Wide Tuning Range CMOS Quadrature Ring Oscillator with Improved FoM for Inductorless Reconfigurable PLL
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概要
- 論文の詳細を見る
This paper presents the design and implementation of a quadrature voltage-controlled ring oscillator with the improved figure of merit (FOM) using the four single-ended inverter topology. Furthermore, a new architecture to prevent the latch-up in even number of stages composed of single-ended ring inverters is proposed. The design is implemented in 0.18µm CMOS technology and the measurement results show a FOM of -163.8dBc/Hz with the phase noise of -125.8dBc/Hz at 4MHz offset from the carrier frequency of 3.4GHz. It exhibits a frequency tuning range from 1.23GHz to 4.17GHz with coarse and fine frequency tuning sensitivity of 1.08MHz/mV and 120kHz/mV, respectively.
- （社）電子情報通信学会の論文
- 2011-10-01
著者
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POKHAREL Ramesh
Kyushu University
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TOMAR Abhishek
Kyushu University
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KANAYA Haruichi
Kyushu University
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POKHAREL Ramesh
青山学院大学理工学部
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Yoshida Keiji
Kyushu Univ. Fukuoka‐shi Jpn
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Kanaya Haruichi
Kyushu Univ. Fukuoka‐shi Jpn
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LINGALA Shashank
Kyushu University
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Anand Awinash
Kyushu University
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Nugroho Prapto
Kyushu University
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ポカレル ラメシュ
Kyushu University
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