JP4327144B2 - Ｐｌｌ回路におけるアクティブフィルタ。 - Google Patents

Ｐｌｌ回路におけるアクティブフィルタ。 Download PDF

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Publication number
JP4327144B2
JP4327144B2 JP2005289043A JP2005289043A JP4327144B2 JP 4327144 B2 JP4327144 B2 JP 4327144B2 JP 2005289043 A JP2005289043 A JP 2005289043A JP 2005289043 A JP2005289043 A JP 2005289043A JP 4327144 B2 JP4327144 B2 JP 4327144B2
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JP
Japan
Prior art keywords
charge pump
circuit
filter
voltage
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2005289043A
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English (en)
Japanese (ja)
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JP2007104132A (ja
JP2007104132A5 (https=
Inventor
確 長谷川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Semiconductor Ltd
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Fujitsu Semiconductor Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Fujitsu Semiconductor Ltd filed Critical Fujitsu Semiconductor Ltd
Priority to JP2005289043A priority Critical patent/JP4327144B2/ja
Priority to US11/318,608 priority patent/US7782144B2/en
Publication of JP2007104132A publication Critical patent/JP2007104132A/ja
Publication of JP2007104132A5 publication Critical patent/JP2007104132A5/ja
Application granted granted Critical
Publication of JP4327144B2 publication Critical patent/JP4327144B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H03L7/0893—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump the up-down pulses controlling at least two source current generators or at least two sink current generators connected to different points in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop

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  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Networks Using Active Elements (AREA)
JP2005289043A 2005-09-30 2005-09-30 Ｐｌｌ回路におけるアクティブフィルタ。 Expired - Fee Related JP4327144B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005289043A JP4327144B2 (ja) 2005-09-30 2005-09-30 Ｐｌｌ回路におけるアクティブフィルタ。
US11/318,608 US7782144B2 (en) 2005-09-30 2005-12-28 Active filter in PLL circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005289043A JP4327144B2 (ja) 2005-09-30 2005-09-30 Ｐｌｌ回路におけるアクティブフィルタ。

Publications (3)

Publication Number Publication Date
JP2007104132A JP2007104132A (ja) 2007-04-19
JP2007104132A5 JP2007104132A5 (https=) 2007-07-12
JP4327144B2 true JP4327144B2 (ja) 2009-09-09

Family

ID=37901323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005289043A Expired - Fee Related JP4327144B2 (ja) 2005-09-30 2005-09-30 Ｐｌｌ回路におけるアクティブフィルタ。

Country Status (2)

Country Link
US (1) US7782144B2 (https=)
JP (1) JP4327144B2 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010252094A (ja) * 2009-04-16 2010-11-04 Renesas Electronics Corp Ｐｌｌ回路
US10014867B1 (en) * 2016-12-28 2018-07-03 AUCMOS Technologies USA, Inc. Low-jitter phase-locked loop circuit

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03136522A (ja) 1989-10-23 1991-06-11 Mitsubishi Electric Corp 位相同期回路
US5297231A (en) * 1992-03-31 1994-03-22 Compaq Computer Corporation Digital signal processor interface for computer system
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
JP2919321B2 (ja) 1995-10-27 1999-07-12 埼玉日本電気株式会社 Ｐｌｌシンセサイザ
JPH1168560A (ja) 1997-08-20 1999-03-09 Nec Corp Ｐｌｌ周波数シンセサイザおよびチャージポンプ回路
US6040742A (en) * 1997-09-02 2000-03-21 Lucent Technologies Inc. Charge-pump phase-locked loop with DC current source
US6611160B1 (en) * 2000-11-21 2003-08-26 Skyworks Solutions, Inc. Charge pump having reduced switching noise
WO2003098807A1 (en) 2002-05-22 2003-11-27 Matsushita Electric Industrial Co.,Ltd. Low-pass filter for a pll, phase-locked loop and semiconductor integrated circuit
US6963232B2 (en) * 2003-08-11 2005-11-08 Rambus, Inc. Compensator for leakage through loop filter capacitors in phase-locked loops
JP2005094427A (ja) 2003-09-18 2005-04-07 Renesas Technology Corp 通信用半導体集積回路
JP2005167536A (ja) 2003-12-02 2005-06-23 Renesas Technology Corp 通信用半導体集積回路および無線通信システム
US7015735B2 (en) 2003-12-19 2006-03-21 Renesas Technology Corp. Semiconductor integrated circuit having built-in PLL circuit
TWI233265B (en) * 2004-06-18 2005-05-21 Via Tech Inc Phase locked loop circuit
US7427900B2 (en) * 2004-12-30 2008-09-23 Silicon Laboratories Inc. Integrated PLL loop filter and charge pump

Also Published As

Publication number Publication date
US20070075788A1 (en) 2007-04-05
JP2007104132A (ja) 2007-04-19
US7782144B2 (en) 2010-08-24

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