CN1702958A - 具有对称输出的可编程分频器 - Google Patents
具有对称输出的可编程分频器 Download PDFInfo
- Publication number
- CN1702958A CN1702958A CNA2005100652985A CN200510065298A CN1702958A CN 1702958 A CN1702958 A CN 1702958A CN A2005100652985 A CNA2005100652985 A CN A2005100652985A CN 200510065298 A CN200510065298 A CN 200510065298A CN 1702958 A CN1702958 A CN 1702958A
- Authority
- CN
- China
- Prior art keywords
- latch
- lfsr
- counter
- frequency division
- frequency
- 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.)
- Granted
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
Landscapes
- Manipulation Of Pulses (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (25)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/709,804 | 2004-05-28 | ||
US10/709,804 US6961403B1 (en) | 2004-05-28 | 2004-05-28 | Programmable frequency divider with symmetrical output |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1702958A true CN1702958A (zh) | 2005-11-30 |
CN100463358C CN100463358C (zh) | 2009-02-18 |
Family
ID=35150841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100652985A Expired - Fee Related CN100463358C (zh) | 2004-05-28 | 2005-04-19 | 可编程分频电路,分频方法,高速线性反馈移位寄存器及其形成方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6961403B1 (zh) |
JP (1) | JP4979202B2 (zh) |
CN (1) | CN100463358C (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101841324A (zh) * | 2010-06-02 | 2010-09-22 | 四川和芯微电子股份有限公司 | 具有自动复位功能的移位分频器 |
CN102394636A (zh) * | 2011-11-24 | 2012-03-28 | 思瑞浦(苏州)微电子有限公司 | 低噪声四模分频器 |
CN103532545A (zh) * | 2013-10-29 | 2014-01-22 | 四川和芯微电子股份有限公司 | 移位分频器 |
CN103905035A (zh) * | 2014-03-27 | 2014-07-02 | 四川和芯微电子股份有限公司 | 移位分频器电路 |
CN103905034A (zh) * | 2014-03-27 | 2014-07-02 | 四川和芯微电子股份有限公司 | 移位分频器电路 |
CN108063618A (zh) * | 2017-12-20 | 2018-05-22 | 广州润芯信息技术有限公司 | 一种vco自动校准电路和方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7664166B2 (en) * | 2004-12-17 | 2010-02-16 | Rambus Inc. | Pleisiochronous repeater system and components thereof |
US7800417B2 (en) * | 2006-07-19 | 2010-09-21 | Marvell Israel (M.I.S.L.) Ltd. | Method and apparatus for generating frequency divided signals |
US20080219399A1 (en) * | 2007-03-07 | 2008-09-11 | Nary Kevin R | Frequency Divider With Symmetrical Output |
US7576620B2 (en) * | 2007-07-13 | 2009-08-18 | Leadtrend Technology Corp. | Pseudo random clock generator |
US8583712B2 (en) * | 2007-09-18 | 2013-11-12 | Seagate Technology Llc | Multi-bit sampling of oscillator jitter for random number generation |
US7904264B2 (en) * | 2007-11-12 | 2011-03-08 | International Business Machines Corporation | Absolute duty cycle measurement |
US8032850B2 (en) * | 2007-11-12 | 2011-10-04 | International Business Machines Corporation | Structure for an absolute duty cycle measurement circuit |
US20110133793A1 (en) * | 2009-12-03 | 2011-06-09 | Seagate Technology Llc | Clock divider with seamless clock frequency change |
US8378719B1 (en) | 2011-10-18 | 2013-02-19 | St-Ericsson Sa | Programmable high-speed frequency divider |
US9306574B1 (en) * | 2015-03-04 | 2016-04-05 | Apple Inc. | Clock divider circuit with synchronized switching |
US10396769B2 (en) * | 2017-10-18 | 2019-08-27 | Qualcomm Incorporated | Apparatus and method for clock signal frequency division using self-resetting, low power, linear feedback shift register (LFSR) |
US10432209B1 (en) | 2018-10-10 | 2019-10-01 | Globalfoundries Inc. | Linear feedback shift register-based clock signal generator, time domain-interleaved analog to digital converter and methods |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133728A (en) * | 1981-02-12 | 1982-08-18 | Matsushita Electric Ind Co Ltd | Frequency divider |
JPS62265815A (ja) * | 1986-05-13 | 1987-11-18 | Mitsubishi Electric Corp | デユ−テイ変換回路 |
JP2659186B2 (ja) * | 1987-03-17 | 1997-09-30 | 日本電気株式会社 | デイジタル可変分周回路 |
US5060415A (en) * | 1988-05-19 | 1991-10-29 | Schleip Ernest G | Hot bed enclosure |
JP2572283B2 (ja) | 1989-10-23 | 1997-01-16 | 日本無線株式会社 | 可変分周回路 |
JP2853894B2 (ja) * | 1990-08-24 | 1999-02-03 | 三菱電機株式会社 | 分周回路及びパルス信号作成回路 |
FR2677515A1 (fr) | 1991-06-07 | 1992-12-11 | Philips Composants | Circuit diviseur de frequence. |
JPH10276083A (ja) * | 1997-03-28 | 1998-10-13 | Rohm Co Ltd | 偶数奇数分周回路 |
US5948046A (en) | 1997-12-15 | 1999-09-07 | Telefonaktiebolaget Lm Ericsson | Multi-divide frequency division |
SE512009C2 (sv) * | 1998-05-18 | 2000-01-10 | Ericsson Telefon Ab L M | Linjärt återkopplade skiftregister med låg effekt |
US6057719A (en) | 1998-06-05 | 2000-05-02 | International Business Machines Corporation | Programmable, self-resetting divider |
TWI264876B (en) | 2001-03-21 | 2006-10-21 | Mediatek Inc | PLL frequency synthesizer |
US6459310B1 (en) * | 2001-07-06 | 2002-10-01 | Nortel Networks Limited | Divide by 15 clock circuit |
JP3901999B2 (ja) * | 2001-12-07 | 2007-04-04 | 松下電器産業株式会社 | 分周比可変型奇数分周回路 |
-
2004
- 2004-05-28 US US10/709,804 patent/US6961403B1/en not_active Expired - Lifetime
-
2005
- 2005-04-19 CN CNB2005100652985A patent/CN100463358C/zh not_active Expired - Fee Related
- 2005-05-27 JP JP2005156444A patent/JP4979202B2/ja not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101841324A (zh) * | 2010-06-02 | 2010-09-22 | 四川和芯微电子股份有限公司 | 具有自动复位功能的移位分频器 |
CN102394636A (zh) * | 2011-11-24 | 2012-03-28 | 思瑞浦(苏州)微电子有限公司 | 低噪声四模分频器 |
CN102394636B (zh) * | 2011-11-24 | 2014-04-23 | 思瑞浦微电子科技(苏州)有限公司 | 低噪声四模分频器 |
CN103532545A (zh) * | 2013-10-29 | 2014-01-22 | 四川和芯微电子股份有限公司 | 移位分频器 |
CN103532545B (zh) * | 2013-10-29 | 2016-06-01 | 四川和芯微电子股份有限公司 | 移位分频器 |
CN103905035A (zh) * | 2014-03-27 | 2014-07-02 | 四川和芯微电子股份有限公司 | 移位分频器电路 |
CN103905034A (zh) * | 2014-03-27 | 2014-07-02 | 四川和芯微电子股份有限公司 | 移位分频器电路 |
CN108063618A (zh) * | 2017-12-20 | 2018-05-22 | 广州润芯信息技术有限公司 | 一种vco自动校准电路和方法 |
Also Published As
Publication number | Publication date |
---|---|
US6961403B1 (en) | 2005-11-01 |
JP4979202B2 (ja) | 2012-07-18 |
JP2005341596A (ja) | 2005-12-08 |
CN100463358C (zh) | 2009-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20171121 Address after: American New York Patentee after: Core USA second LLC Address before: American New York Patentee before: International Business Machines Corp. Effective date of registration: 20171121 Address after: Grand Cayman, Cayman Islands Patentee after: GLOBALFOUNDRIES INC. Address before: American New York Patentee before: Core USA second LLC |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 |