A 2.4-GHz Temperature-Compensated CMOS LC-VCO for Low Frequency Drift Low-Power Direct-Modulation GFSK Transmitters(Analog, <Special Section>Low-Power LSI and Low-Power IP)

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概要

• 論文の詳細を見る

• A frequency drift of open-loop PLL is an issue for the direct-modulation applications such as Bluetooth transceiver. The drift mainly comes from a temperature variation of VCO during the transmission operation. In this paper, we propose the optimum location of the VCO, considering the temperature gradient through the whole-chip thermal analysis. Moreover, a novel temperature-compensated VCO, employing a new biasing scheme, is proposed. The combination of these two techniques enables the power reduction of the transmitter by 33% without sacrificing the performance.

• 2005-04-01

著者

• AGAWA Kenichi

  Semiconductor Company, Toshiba Corporation

• MAJIMA Hideaki

  Semiconductor Company, Toshiba Corporation

• KOBAYASHI Hiroyuki

  Semiconductor Company, Toshiba Corporation

• KOIZUMI Masayuki

  Semiconductor Company, Toshiba Corporation

• Agawa Kenichi

  Soc Research And Development Center Toshiba Corporation

• Majima Hideaki

  Semiconductor Company Toshiba Corporation

• Kousai Shouhei

  Soc Research And Development Center Toshiba Corporation

• Terauchi Ryota

  Semiconductor Company Toshiba Corporation

• Agawa Kenichi

  Semiconductor Company Toshiba Corporation

• ISHIKURO Hiroki

  Keio University

• Ishikuro Hiroki

  Soc Research And Development Center Toshiba Corporation

• Hatori Fumitoshi

  Soc Research And Development Center Toshiba Corporation

• Koizumi Masayuki

  Semiconductor Company Toshiba Corporation

• Hisano Katsumi

  Corporate R&d Center Toshiba Corporation

• Tanzawa Toru

  Semiconductor Company Toshiba Corporation

• SHIBAYAMA Hiroyuki

  Semiconductor Company, Toshiba Corporation

• ISHIKURO Hiroki

  Semiconductor Company, Toshiba Corporation

• KOUSAI Shouhei

  Semiconductor Company, Toshiba Corporation

• TAKAYAMA Toru

  Semiconductor Company, Toshiba Corporation

• HATORI Fumitoshi

  Semiconductor Company, Toshiba Corporation

• Shibayama Hiroyuki

  Semiconductor Company Toshiba Corporation

• Kobayashi Hiroyuki

  Semiconductor Company Toshiba Corporation

関連論文

• A Full-CMOS Single Chip Bluetooth LSI with 1.5 MHz-IF Receiver and Direct Modulation Transmitter(Low-Power System LSI, IP and Related Technologies)
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• Constant Magnetic Field Scaling in Inductive-Coupling Data Link
• Constant Magnetic Field Scaling in Inductive-Coupling Data Link
• 60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique
• A 4-Gbps Quasi-Millimeter-Wave Transmitter in 65nm CMOS and a Fast Carrier and Symbol Timing Recovery Scheme
• A 2.4-GHz Temperature-Compensated CMOS LC-VCO for Low Frequency Drift Low-Power Direct-Modulation GFSK Transmitters(Analog, Low-Power LSI and Low-Power IP)
• 6W/25mm^2 Wireless Power Transmission for Non-contact Wafer-Level Testing

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