CN1819464A - 扩频时钟生成电路及其控制方法 - Google Patents
扩频时钟生成电路及其控制方法 Download PDFInfo
- Publication number
- CN1819464A CN1819464A CNA200510076690XA CN200510076690A CN1819464A CN 1819464 A CN1819464 A CN 1819464A CN A200510076690X A CNA200510076690X A CN A200510076690XA CN 200510076690 A CN200510076690 A CN 200510076690A CN 1819464 A CN1819464 A CN 1819464A
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- unit
- voltage
- modulation period
- spread spectrum
- circuit
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- 238000001228 spectrum Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 86
- 238000007599 discharging Methods 0.000 claims abstract 4
- 230000010355 oscillation Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 description 10
- 101000650578 Salmonella phage P22 Regulatory protein C3 Proteins 0.000 description 7
- 101001040920 Triticum aestivum Alpha-amylase inhibitor 0.28 Proteins 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 101800004021 PP2-A Proteins 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
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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
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- 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
Abstract
Description
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP030917/2005 | 2005-02-07 | ||
JP2005030917A JP2006217539A (ja) | 2005-02-07 | 2005-02-07 | スペクトラム拡散クロック発生回路およびスペクトラム拡散クロック発生回路の制御方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1819464A true CN1819464A (zh) | 2006-08-16 |
CN100555872C CN100555872C (zh) | 2009-10-28 |
Family
ID=34941328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB200510076690XA Expired - Fee Related CN100555872C (zh) | 2005-02-07 | 2005-06-13 | 扩频时钟生成电路及其控制方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8503501B2 (zh) |
EP (1) | EP1689088B1 (zh) |
JP (1) | JP2006217539A (zh) |
KR (2) | KR20060090146A (zh) |
CN (1) | CN100555872C (zh) |
DE (1) | DE602005016365D1 (zh) |
TW (1) | TWI322576B (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101777889A (zh) * | 2008-12-29 | 2010-07-14 | 东部高科股份有限公司 | 用于生成小型扩展频谱时钟信号的装置和方法 |
CN101060329B (zh) * | 2007-04-18 | 2011-06-29 | 钰创科技股份有限公司 | 展频周期讯号产生器 |
CN106936413A (zh) * | 2015-12-31 | 2017-07-07 | 无锡华润矽科微电子有限公司 | 具有扩频功能的振荡器电路 |
CN108712160A (zh) * | 2018-08-22 | 2018-10-26 | 上海艾为电子技术股份有限公司 | 一种展频时钟信号产生电路和切换式电源转换器 |
CN110097911A (zh) * | 2018-01-30 | 2019-08-06 | 华邦电子股份有限公司 | 半导体存储装置以及电压产生电路 |
CN112615622A (zh) * | 2020-12-26 | 2021-04-06 | 上海艾为电子技术股份有限公司 | 一种展频时钟发生器及电子设备 |
CN114024873A (zh) * | 2020-07-20 | 2022-02-08 | 安立股份有限公司 | 扩频时钟发生器、脉冲波形发生装置以及误码率测量装置 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4684919B2 (ja) * | 2006-03-03 | 2011-05-18 | ルネサスエレクトロニクス株式会社 | スペクトラム拡散クロック制御装置及びスペクトラム拡散クロック発生装置 |
KR100778374B1 (ko) * | 2007-02-16 | 2007-11-22 | 인하대학교 산학협력단 | 확산비율 조절가능 대역 확산 클록 발생기 |
JP4562787B2 (ja) * | 2008-07-30 | 2010-10-13 | ルネサスエレクトロニクス株式会社 | Pll回路 |
JP5896503B2 (ja) | 2010-08-03 | 2016-03-30 | ザインエレクトロニクス株式会社 | 送信装置、受信装置および送受信システム |
JP5589769B2 (ja) * | 2010-10-29 | 2014-09-17 | 富士通セミコンダクター株式会社 | スイッチング電源の制御回路及び電子機器 |
US10903865B2 (en) | 2013-01-25 | 2021-01-26 | Infineon Technologies Ag | Signal interface and a signal processing system |
US10756857B2 (en) * | 2013-01-25 | 2020-08-25 | Infineon Technologies Ag | Method, apparatus and computer program for digital transmission of messages |
JP6434365B2 (ja) * | 2015-05-13 | 2018-12-05 | 日本電信電話株式会社 | 発振器 |
JP7169500B2 (ja) * | 2021-02-25 | 2022-11-11 | アンリツ株式会社 | スペクトラム拡散クロック発生器及びスペクトラム拡散クロック発生方法、パルスパターン発生装置及びパルスパターン発生方法、並びに、誤り率測定装置及び誤り率測定方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1989012280A1 (en) * | 1988-06-09 | 1989-12-14 | Asahi Kasei Microsystems Co., Ltd. | Analog operation circuit |
US5488627A (en) * | 1993-11-29 | 1996-01-30 | Lexmark International, Inc. | Spread spectrum clock generator and associated method |
US5943382A (en) * | 1996-08-21 | 1999-08-24 | Neomagic Corp. | Dual-loop spread-spectrum clock generator with master PLL and slave voltage-modulation-locked loop |
US6046646A (en) * | 1997-06-13 | 2000-04-04 | Lo; Pedro W. | Modulation of a phase locked loop for spreading the spectrum of an output clock signal |
US6377646B1 (en) * | 1997-07-21 | 2002-04-23 | Cypress Semiconductor Corp. | Spread spectrum at phase lock loop (PLL) feedback path |
JP4069503B2 (ja) | 1998-07-17 | 2008-04-02 | ソニー株式会社 | Pll回路 |
JP4089030B2 (ja) | 1998-09-18 | 2008-05-21 | ソニー株式会社 | クロック発生回路 |
JP3652950B2 (ja) * | 2000-02-02 | 2005-05-25 | 富士通株式会社 | 電圧変換回路及び電圧変換回路の制御回路 |
US6980581B1 (en) * | 2000-07-18 | 2005-12-27 | Cypress Semiconductor Corp. | Adaptive spread spectrum |
JP2002341959A (ja) * | 2001-05-15 | 2002-11-29 | Rohm Co Ltd | クロック信号発生方法及び装置 |
JP4742454B2 (ja) * | 2001-06-25 | 2011-08-10 | 日本テキサス・インスツルメンツ株式会社 | レギュレータ回路 |
US6658043B2 (en) * | 2001-10-26 | 2003-12-02 | Lexmark International, Inc. | Method and apparatus for providing multiple spread spectrum clock generator circuits with overlapping output frequencies |
US20030174005A1 (en) * | 2002-03-14 | 2003-09-18 | Latham Paul W. | Cmos digital pulse width modulation controller |
JP4229749B2 (ja) * | 2003-04-23 | 2009-02-25 | 富士通マイクロエレクトロニクス株式会社 | スペクトラム拡散クロック発生回路 |
JP4141248B2 (ja) * | 2002-12-25 | 2008-08-27 | 富士通株式会社 | スペクトラム拡散クロック発生回路 |
JP4141247B2 (ja) * | 2002-12-24 | 2008-08-27 | 富士通株式会社 | スペクトラム拡散クロック発生回路 |
TWI279988B (en) * | 2002-12-24 | 2007-04-21 | Fujitsu Ltd | Spread spectrum clock generation circuit, jitter generation circuit and semiconductor device |
-
2005
- 2005-02-07 JP JP2005030917A patent/JP2006217539A/ja active Pending
- 2005-05-17 EP EP20050253004 patent/EP1689088B1/en not_active Expired - Fee Related
- 2005-05-17 DE DE200560016365 patent/DE602005016365D1/de active Active
- 2005-05-18 KR KR20050041754A patent/KR20060090146A/ko not_active Application Discontinuation
- 2005-05-18 US US11/131,244 patent/US8503501B2/en active Active
- 2005-05-19 TW TW94116301A patent/TWI322576B/zh active
- 2005-06-13 CN CNB200510076690XA patent/CN100555872C/zh not_active Expired - Fee Related
-
2007
- 2007-08-13 KR KR1020070081293A patent/KR100848843B1/ko not_active IP Right Cessation
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101060329B (zh) * | 2007-04-18 | 2011-06-29 | 钰创科技股份有限公司 | 展频周期讯号产生器 |
CN101777889A (zh) * | 2008-12-29 | 2010-07-14 | 东部高科股份有限公司 | 用于生成小型扩展频谱时钟信号的装置和方法 |
CN106936413A (zh) * | 2015-12-31 | 2017-07-07 | 无锡华润矽科微电子有限公司 | 具有扩频功能的振荡器电路 |
CN110097911A (zh) * | 2018-01-30 | 2019-08-06 | 华邦电子股份有限公司 | 半导体存储装置以及电压产生电路 |
CN110097911B (zh) * | 2018-01-30 | 2021-05-18 | 华邦电子股份有限公司 | 半导体存储装置以及电压产生电路 |
CN108712160A (zh) * | 2018-08-22 | 2018-10-26 | 上海艾为电子技术股份有限公司 | 一种展频时钟信号产生电路和切换式电源转换器 |
CN108712160B (zh) * | 2018-08-22 | 2023-10-24 | 上海艾为电子技术股份有限公司 | 一种展频时钟信号产生电路和切换式电源转换器 |
CN114024873A (zh) * | 2020-07-20 | 2022-02-08 | 安立股份有限公司 | 扩频时钟发生器、脉冲波形发生装置以及误码率测量装置 |
CN114024873B (zh) * | 2020-07-20 | 2023-10-03 | 安立股份有限公司 | 扩频时钟发生器、脉冲波形发生装置以及误码率测量装置 |
CN112615622A (zh) * | 2020-12-26 | 2021-04-06 | 上海艾为电子技术股份有限公司 | 一种展频时钟发生器及电子设备 |
CN112615622B (zh) * | 2020-12-26 | 2023-03-24 | 上海艾为电子技术股份有限公司 | 一种展频时钟发生器及电子设备 |
Also Published As
Publication number | Publication date |
---|---|
KR100848843B1 (ko) | 2008-07-28 |
CN100555872C (zh) | 2009-10-28 |
TWI322576B (en) | 2010-03-21 |
EP1689088B1 (en) | 2009-09-02 |
KR20070091082A (ko) | 2007-09-07 |
TW200629736A (en) | 2006-08-16 |
US8503501B2 (en) | 2013-08-06 |
JP2006217539A (ja) | 2006-08-17 |
US20060176932A1 (en) | 2006-08-10 |
KR20060090146A (ko) | 2006-08-10 |
EP1689088A1 (en) | 2006-08-09 |
DE602005016365D1 (de) | 2009-10-15 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: FUJITSU MICROELECTRONICS CO., LTD. Free format text: FORMER OWNER: FUJITSU LIMITED Effective date: 20081024 |
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C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20081024 Address after: Tokyo, Japan, Japan Applicant after: Fujitsu Microelectronics Ltd. Address before: Kanagawa Applicant before: Fujitsu Ltd. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: FUJITSU SEMICONDUCTORS CO., LTD Free format text: FORMER NAME: FUJITSU MICROELECTRON CO., LTD. |
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CP03 | Change of name, title or address |
Address after: Kanagawa Patentee after: Fujitsu Semiconductor Co., Ltd. Address before: Tokyo, Japan Patentee before: Fujitsu Microelectronics Ltd. |
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ASS | Succession or assignment of patent right |
Owner name: SPANSION LLC N. D. GES D. STAATES Free format text: FORMER OWNER: FUJITSU SEMICONDUCTOR CO., LTD. Effective date: 20140102 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140102 Address after: American California Patentee after: Spansion LLC N. D. Ges D. Staates Address before: Kanagawa Patentee before: Fujitsu Semiconductor Co., Ltd. |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160407 Address after: American California Patentee after: Cypress Semiconductor Corp. Address before: American California Patentee before: Spansion LLC N. D. Ges D. Staates |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20170613 |
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CF01 | Termination of patent right due to non-payment of annual fee |