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Title:
PLL CIRCUIT, CALIBRATION METHOD, AND WIRELESS COMMUNICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/140755
Kind Code:
A1
Abstract:
An injection-locked frequency divider (ILFD) control unit (520) establishes a control parameter of an IFLD (303b) on the basis of the frequencies of a reference signal and of a frequency-divided signal measured in accordance with a control parameter of the IFLD (303b) when a VCO (301) and an IFLD (303a) are inactive. The ILFD control unit (520) activates the IFLD (303a) and establishes a control parameter of the IFLD (303a) on the basis of the frequencies of the reference signal and of a frequency-divided signal measured in accordance with a control parameter of the IFLD (303a) when the VCO (301) is inactive.

Inventors:
SHIMA, Takahiro
Application Number:
JP2013/001680
Publication Date:
September 26, 2013
Filing Date:
March 13, 2013
Export Citation:
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Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
International Classes:
H03L7/08; G06F1/08; H03K23/66
Foreign References:
JP2008236557A2008-10-02
US20090042528A12009-02-12
Other References:
MASASHI KOBAYASHI: "A 60 GHz CMOS IC for a short-range wireless system -Frontend IC", PROCEEDINGS OF THE 2011 IEICE GENERAL CONFERENCE ELECTRONICS 2, 28 February 2011 (2011-02-28), pages 92
PIERRE MAYR ET AL.: "A 90GHz 65nm CMOS Injection-Locked Frequency Divider", DIGEST OF TECHNICAL PAPERS. IEEE INTERNATIONAL SOLID-STATE CIRCUITS CONFERENCE, 2007, 11 February 2007 (2007-02-11), pages 198 - 199, 596
TAKAHIRO SHIMA: "A Study on A Calibration Algorithm of CMOS Injection Locked Frequency Divider for a Short-range Wireless System", PROCEEDINGS OF THE 2011 IEICE ELECTRONICS SOCIETY CONFERENCE 2, 30 August 2011 (2011-08-30), pages 102
TAKAHIRO SHIMA ET AL.: "A 60 GHz CMOS PLL Synthesizer using a Wideband Injection-Locked Frequency Divider with Fast Calibration Technique", ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS, 2011, 5 December 2011 (2011-12-05), pages 1530 - 1533, XP032152940
PIERRE MAYR ET AL.: "13 GHz Cascaded 4:1 CMOS Injection Locked Frequency Divider", ASIA-PACIFIC MICROWAVE CONFERENCE, 2006, 12 December 2006 (2006-12-12), pages 520 - 523, XP031201537
Attorney, Agent or Firm:
HASHIMOTO, Kimihide et al. (Eikoh Patent Firm, Toranomon East Bldg. 10F 7-13, Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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