JP2000196442A5 - - Google Patents

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Publication number
JP2000196442A5
JP2000196442A5 JP1999364697A JP36469799A JP2000196442A5 JP 2000196442 A5 JP2000196442 A5 JP 2000196442A5 JP 1999364697 A JP1999364697 A JP 1999364697A JP 36469799 A JP36469799 A JP 36469799A JP 2000196442 A5 JP2000196442 A5 JP 2000196442A5
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JP
Japan
Prior art keywords
current
current source
strength
charge pump
supplied
Prior art date
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Application number
JP1999364697A
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English (en)
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JP4584390B2 (ja
JP2000196442A (ja
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Priority claimed from FI982780A external-priority patent/FI107092B/fi
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Publication of JP2000196442A publication Critical patent/JP2000196442A/ja
Publication of JP2000196442A5 publication Critical patent/JP2000196442A5/ja
Application granted granted Critical
Publication of JP4584390B2 publication Critical patent/JP4584390B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

第１スイッチ手段ＳＷ１が開いている（ｉ1 ≒０）場合には、チャージポンプ構成の出力電流ｉout は第１放電用電流源ＣＳ２が排出する電流の強さｉ2 並びに第２チャージポンプＣＨＰ２が供給する基準電流ｉΔ2 の影響を受ける。この場合には第４スイッチ手段ＳＷ４も開いている（ｉ4 ≒０）ので、第２チャージポンプの出力電流ｉΔ2 は第２充電用電流源ＣＳ３が供給する電流ｉ3 である。この電流はコピー用手段ＣＭへ送られる。この場合、式５によれば、チャージポンプ構成用として得られる出力電流ｉout は、第１放電用電流源ＣＳ２の電流の強さと第２充電用電流源ＣＳ３の電流の強さとの和にマイナス符号を付けたものすなわち−（ｉ2 ＋ｉ3 ) となる。一方、第２充電用電流源ＣＳ３が供給する電流ｉ3 の強さは第１充電用電流源ＣＳ１が供給する電流の強さにほぼ等しい。この場合、チャージポンプの出力電流は次式で表わされる。
ｉout ＝−（ｉ1 ＋ｉ2 ) （式６ａ）
すなわち、第１放電用電流源ＣＳ２と第１充電用電流源ＣＳ１が排出した電流の和にマイナス符号を付けたものとして表わされる。
JP36469799A 1998-12-22 1999-12-22 チャージポンプの出力電流を平衡させる方法とチャージポンプ構成ならびに無線通信装置 Expired - Fee Related JP4584390B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982780A FI107092B (fi) 1998-12-22 1998-12-22 Varauspumppuun perustuva vaihelukittu silmukka
FI982780 1998-12-22

Publications (3)

Publication Number Publication Date
JP2000196442A JP2000196442A (ja) 2000-07-14
JP2000196442A5 true JP2000196442A5 (ja) 2007-02-15
JP4584390B2 JP4584390B2 (ja) 2010-11-17

Family

ID=8553178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36469799A Expired - Fee Related JP4584390B2 (ja) 1998-12-22 1999-12-22 チャージポンプの出力電流を平衡させる方法とチャージポンプ構成ならびに無線通信装置

Country Status (5)

Country Link
US (1) US6181756B1 (ja)
EP (1) EP1014586A3 (ja)
JP (1) JP4584390B2 (ja)
KR (1) KR100637357B1 (ja)
FI (1) FI107092B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6847789B2 (en) * 2000-02-17 2005-01-25 Broadcom Corporation Linear half-rate phase detector and clock and data recovery circuit
US6657917B2 (en) * 2001-07-02 2003-12-02 Micron Technology, Inc. Selective adjustment of voltage controlled oscillator gain in a phase-locked loop
JP4608153B2 (ja) * 2001-09-10 2011-01-05 ルネサスエレクトロニクス株式会社 チャージポンプ電流補正回路
US7327197B2 (en) * 2005-10-20 2008-02-05 Honeywell International, Inc. Radiation hardened phase locked loop
US7310021B2 (en) * 2005-12-29 2007-12-18 Intel Corporation Phase-locked loop with tunable-transfer function
DE102006018236A1 (de) 2006-04-19 2007-11-08 Xignal Technologies Ag Steuerbare Stromquelle für einen Phasenregelkreis
US8049540B2 (en) * 2008-09-19 2011-11-01 Analog Devices, Inc. Calibration system and method for phase-locked loops

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730414A (en) * 1980-07-30 1982-02-18 Fujitsu Ltd Offset automatic compensating system
JP2758594B2 (ja) * 1985-11-21 1998-05-28 日本電気株式会社 チャージポンプ回路
JPH0199433A (ja) * 1987-10-09 1989-04-18 Nec Corp バランス型正負電流源回路
US5173664A (en) 1991-09-16 1992-12-22 Minnesota Mining And Manufacturing Company Phase locked loop having constant gain for recovering clock from non-uniformly spaced data
JP2778421B2 (ja) 1993-09-07 1998-07-23 日本電気株式会社 チャージポンプ型位相同期ループ
US5592120A (en) * 1994-09-07 1997-01-07 Analog Devices, Inc. Charge pump system
EP0718978A1 (en) * 1994-12-23 1996-06-26 STMicroelectronics S.r.l. Differential charge pump
US5532636A (en) 1995-03-10 1996-07-02 Intel Corporation Source-switched charge pump circuit
JP2877196B2 (ja) * 1996-03-28 1999-03-31 日本電気株式会社 チャージポンプ回路およびそれを備えた位相同期回路
US5670869A (en) * 1996-05-30 1997-09-23 Sun Microsystems, Inc. Regulated complementary charge pump with imbalanced current regulation and symmetrical input capacitance
JPH1084279A (ja) * 1996-09-06 1998-03-31 Sony Corp Ｐｌｌ回路およびこれを用いた記録再生装置
US6040742A (en) * 1997-09-02 2000-03-21 Lucent Technologies Inc. Charge-pump phase-locked loop with DC current source

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