JP2006518151A5 - - Google Patents

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Publication number
JP2006518151A5
JP2006518151A5 JP2006503296A JP2006503296A JP2006518151A5 JP 2006518151 A5 JP2006518151 A5 JP 2006518151A5 JP 2006503296 A JP2006503296 A JP 2006503296A JP 2006503296 A JP2006503296 A JP 2006503296A JP 2006518151 A5 JP2006518151 A5 JP 2006518151A5
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JP
Japan
Prior art keywords
vco
frequency
pll
phase difference
reference frequency
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Pending
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JP2006503296A
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English (en)
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JP2006518151A (ja
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Priority claimed from US10/367,007 external-priority patent/US6774732B1/en
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Publication of JP2006518151A publication Critical patent/JP2006518151A/ja
Publication of JP2006518151A5 publication Critical patent/JP2006518151A5/ja
Pending legal-status Critical Current

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Claims (3)

  1. 位相同期ループ(PLL)シンセサイザにおいて少なくとも1つの電圧制御発振器(VCO)を粗調整するためのシステムであって、
    VCO周波数と基準周波数との間の位相差があることを判定し、かつ前記VCO周波数と基準周波数との位相差が2πラジアン以上の場合に誤差信号を出力するための位相周波数検出器(PFD)と、
    前記PFDに生成された誤差信号の数を追従するための監視装置とを有し、
    前記VCOの自走周波数は前記監視装置の回路がほぼ所定のレベルに到達する場合に粗調整され得るシステム。
  2. 電圧制御発振器(VCO)の自走周波数と所定の基準周波数との間の位相差に基づき少なくとも1つのVCOを粗調整するためのシステムを有する位相同期ループ(PLL)シンセサイザであって、
    前記VCOの自走周波数と前記所定の基準周波数との間の前記位相差を検出し、かつ前記VCOの自走周波数と前記所定の基準周波数との間の前記位相差が360度以上である時に補正信号を出力するための位相周波数検出器(PFD)と、
    前記PFDに生成された補正信号の数を監視するための少なくとも1つの制御装置と、
    前記PLLを開ループ状態および閉ループ状態の両方に割り当てるためのマルチプレクサ(MUX)とを有し、
    前記少なくとも1つの制御装置における補正信号の計数が所定のレベルに到達した時に、前記少なくとも1つの制御装置は、前記MUXが前記PLLを開ループ状態に変化させるように制御し、かつ前記少なくとも1つのVCOの自走周波数を粗調整するPLLシンセサイザ。
  3. 位相同期ループ(PLL)シンセサイザにおいて少なくとも1つの電圧制御発振器(VCO)を粗調整モードで粗調整するための方法であって、
    前記少なくとも1つのVCOの動作周波数と所定の基準周波数との間の位相差を計測する計測工程と、
    2πラジアンより大きな位相差に応じて誤差補正信号を出力する誤差補正信号出力工程と、
    少なくとも1つの制御装置を用いて前記誤差補正信号の数を監視する監視工程と、
    前記誤差補正信号の数が所定の数に達したことに基づいて前記PLLシンセサイザを開とする開工程と、
    前記VCOの前記動作周波数を前記基準周波数とほぼ一致させるために前記VCOを粗調整する粗調整工程とから成る方法。
JP2006503296A 2003-02-14 2004-02-04 2パイ・スリップ検出を用いて位相同期ループ(pll)シンセサイザを粗調整するためのシステムおよび方法 Pending JP2006518151A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/367,007 US6774732B1 (en) 2003-02-14 2003-02-14 System and method for coarse tuning a phase locked loop (PLL) synthesizer using 2-PI slip detection
PCT/US2004/003098 WO2004075411A2 (en) 2003-02-14 2004-02-04 System and method for coarse tuning a phase locked loop (pll) synthesizer using 2-pi slip detection

Publications (2)

Publication Number Publication Date
JP2006518151A JP2006518151A (ja) 2006-08-03
JP2006518151A5 true JP2006518151A5 (ja) 2007-03-22

Family

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Family Applications (1)

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JP2006503296A Pending JP2006518151A (ja) 2003-02-14 2004-02-04 2パイ・スリップ検出を用いて位相同期ループ(pll)シンセサイザを粗調整するためのシステムおよび方法

Country Status (6)

Country Link
US (1) US6774732B1 (ja)
JP (1) JP2006518151A (ja)
KR (1) KR101082724B1 (ja)
CN (1) CN100483947C (ja)
TW (1) TW200509537A (ja)
WO (1) WO2004075411A2 (ja)

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US8010072B1 (en) * 2008-06-18 2011-08-30 Atheros Communications, Inc. Charge pump current compensation for phase-locked loop frequency synthesizer systems
US8401140B2 (en) 2008-09-05 2013-03-19 Freescale Semiconductor, Inc. Phase/frequency detector for a phase-locked loop that samples on both rising and falling edges of a reference signal
US8224594B2 (en) * 2008-09-18 2012-07-17 Enraf B.V. Apparatus and method for dynamic peak detection, identification, and tracking in level gauging applications
US8659472B2 (en) * 2008-09-18 2014-02-25 Enraf B.V. Method and apparatus for highly accurate higher frequency signal generation and related level gauge
US8271212B2 (en) * 2008-09-18 2012-09-18 Enraf B.V. Method for robust gauging accuracy for level gauges under mismatch and large opening effects in stillpipes and related apparatus
US8513992B1 (en) * 2010-09-10 2013-08-20 Integrated Device Technology, Inc. Method and apparatus for implementation of PLL minimum frequency via voltage comparison
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US8508308B2 (en) * 2011-09-01 2013-08-13 Lsi Corporation Automatic frequency calibration of a multi-LCVCO phase locked loop with adaptive thresholds and programmable center control voltage
US9046406B2 (en) 2012-04-11 2015-06-02 Honeywell International Inc. Advanced antenna protection for radars in level gauging and other applications
CN103067000B (zh) * 2012-12-17 2016-02-10 江汉大学 基于量子系统的伺服系统模型
US9350366B2 (en) 2013-10-18 2016-05-24 Raytheon Company Phase-locked loop filter with coarse and fine tuning
CN103684433B (zh) * 2013-12-18 2016-08-17 北京航天测控技术有限公司 一种宽带频综装置
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