CN108242922B - 紧凑的占空比校正装置及通信系统 - Google Patents
紧凑的占空比校正装置及通信系统 Download PDFInfo
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- CN108242922B CN108242922B CN201711381046.2A CN201711381046A CN108242922B CN 108242922 B CN108242922 B CN 108242922B CN 201711381046 A CN201711381046 A CN 201711381046A CN 108242922 B CN108242922 B CN 108242922B
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- duty cycle
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- 238000012937 correction Methods 0.000 title claims abstract description 73
- 238000004891 communication Methods 0.000 title claims abstract description 23
- 238000012545 processing Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 20
- 239000000872 buffer Substances 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H03L7/08—Details of the phase-locked loop
- H03L7/0807—Details of the phase-locked loop concerning mainly a recovery circuit for the reference signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/156—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern
- H03K5/1565—Arrangements in which a continuous pulse train is transformed into a train having a desired pattern the output pulses having a constant duty cycle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/01—Equalisers
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Pulse Circuits (AREA)
- Manipulation Of Pulses (AREA)
Abstract
Description
Claims (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/389,830 US9882570B1 (en) | 2016-12-23 | 2016-12-23 | Compact high speed duty cycle corrector |
US15/389,830 | 2016-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108242922A CN108242922A (zh) | 2018-07-03 |
CN108242922B true CN108242922B (zh) | 2021-03-02 |
Family
ID=61005141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711381046.2A Active CN108242922B (zh) | 2016-12-23 | 2017-12-20 | 紧凑的占空比校正装置及通信系统 |
Country Status (2)
Country | Link |
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US (3) | US9882570B1 (zh) |
CN (1) | CN108242922B (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8836394B2 (en) * | 2012-03-26 | 2014-09-16 | Rambus Inc. | Method and apparatus for source-synchronous signaling |
JP7223387B2 (ja) * | 2018-05-24 | 2023-02-16 | ザインエレクトロニクス株式会社 | デューティ補償装置 |
CN112262530B (zh) * | 2018-06-15 | 2023-07-11 | 华为技术有限公司 | 参考时钟占空比校准电路 |
US10469061B1 (en) * | 2019-03-29 | 2019-11-05 | Realtek Semiconductor Corp. | Quadrature clock generator and method thereof |
US10644680B1 (en) | 2019-03-29 | 2020-05-05 | Advanced Micro Devices, Inc. | Application of duty cycle correction to a level shifter via a feedback common mode resistor |
US11050416B1 (en) * | 2020-03-03 | 2021-06-29 | Invensense, Inc. | Implementing process, voltage, and/or temperature-insensitive resistance in complementary metal-oxide-semiconductors using a short-duty-clock cycle |
US11177984B1 (en) * | 2020-06-01 | 2021-11-16 | Xilinx, Inc. | CMOS analog circuits having a triode-based active load |
US10998307B1 (en) | 2020-06-01 | 2021-05-04 | Xilinx, Inc. | CMOS analog circuits having a triode-based active load |
Citations (5)
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CN101067635A (zh) * | 2006-05-01 | 2007-11-07 | 国际商业机器公司 | 确定数字信号的占空比的方法和系统 |
CN102983842A (zh) * | 2012-11-30 | 2013-03-20 | 上海宏力半导体制造有限公司 | 占空比调整电路 |
CN103004089A (zh) * | 2010-06-11 | 2013-03-27 | 阿尔特拉公司 | 具有双边沿时钟的集成电路 |
EP2787640A1 (en) * | 2013-04-05 | 2014-10-08 | Technische Universität Darmstadt | A wide range programmable duty cycle corrector |
CN205490485U (zh) * | 2016-02-26 | 2016-08-17 | 西安紫光国芯半导体有限公司 | 一种检测最终时钟输出的延迟锁相环和占空比矫正电路 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6762629B2 (en) * | 2002-07-26 | 2004-07-13 | Intel Corporation | VCC adaptive dynamically variable frequency clock system for high performance low power microprocessors |
US7138841B1 (en) * | 2003-12-23 | 2006-11-21 | Cypress Semiconductor Corp. | Programmable phase shift and duty cycle correction circuit and method |
GB0413152D0 (en) * | 2004-06-14 | 2004-07-14 | Texas Instruments Ltd | Duty cycle controlled CML-CMOS converter |
US7705647B2 (en) * | 2006-06-14 | 2010-04-27 | Qualcomm Incorporated | Duty cycle correction circuit |
US7463075B2 (en) * | 2006-06-23 | 2008-12-09 | Texas Instruments Incorporated | Method and delay circuit with accurately controlled duty cycle |
KR100892635B1 (ko) * | 2007-04-12 | 2009-04-09 | 주식회사 하이닉스반도체 | 듀티 사이클 보정 회로 |
US7821315B2 (en) * | 2007-11-08 | 2010-10-26 | Qualcomm Incorporated | Adjustable duty cycle circuit |
US7839194B2 (en) * | 2007-11-21 | 2010-11-23 | Rambus Inc. | Clock circuitry for generating multiple clocks with time-multiplexed duty cycle adjustment |
KR20090089500A (ko) * | 2008-02-19 | 2009-08-24 | 주식회사 하이닉스반도체 | 듀티 싸이클 보정 회로 |
US7705649B1 (en) * | 2008-04-03 | 2010-04-27 | National Semiconductor Corporation | Duty cycle correction circuit with small duty error and wide frequency range |
US7940103B2 (en) * | 2009-03-09 | 2011-05-10 | Micron Technology, Inc. | Duty cycle correction systems and methods |
CN102474243B (zh) * | 2009-09-24 | 2015-01-28 | 飞思卡尔半导体公司 | 占空比校正器和占空比校正方法 |
US8380138B2 (en) * | 2009-10-21 | 2013-02-19 | Qualcomm Incorporated | Duty cycle correction circuitry |
US8248130B2 (en) * | 2010-05-25 | 2012-08-21 | Freescale Semiconductor, Inc. | Duty cycle correction circuit |
CN101877578B (zh) * | 2010-06-30 | 2012-06-06 | 四川和芯微电子股份有限公司 | 占空比调节系统 |
US8664992B2 (en) * | 2012-01-03 | 2014-03-04 | Nanya Technology Corp. | Duty cycle controlling circuit, duty cycle adjusting cell, and dutycycle detecting circuit |
US8536917B2 (en) * | 2012-02-07 | 2013-09-17 | International Business Machines Corporation | Duty cycle adjustment circuit |
US9236853B2 (en) * | 2014-02-04 | 2016-01-12 | Fujitsu Limited | Digital duty cycle correction |
KR20160094685A (ko) * | 2015-02-02 | 2016-08-10 | 에스케이하이닉스 주식회사 | 듀티 싸이클 감지 회로 및 이를 포함하는 듀티 싸이클 보정 회로 |
US9780768B2 (en) * | 2015-10-30 | 2017-10-03 | Texas Instruments Incorporated | Digital clock-duty-cycle correction |
-
2016
- 2016-12-23 US US15/389,830 patent/US9882570B1/en active Active
-
2017
- 2017-12-13 US US15/840,984 patent/US10122368B2/en active Active
- 2017-12-20 CN CN201711381046.2A patent/CN108242922B/zh active Active
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2018
- 2018-10-08 US US16/154,522 patent/US10333527B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101067635A (zh) * | 2006-05-01 | 2007-11-07 | 国际商业机器公司 | 确定数字信号的占空比的方法和系统 |
CN103004089A (zh) * | 2010-06-11 | 2013-03-27 | 阿尔特拉公司 | 具有双边沿时钟的集成电路 |
CN102983842A (zh) * | 2012-11-30 | 2013-03-20 | 上海宏力半导体制造有限公司 | 占空比调整电路 |
EP2787640A1 (en) * | 2013-04-05 | 2014-10-08 | Technische Universität Darmstadt | A wide range programmable duty cycle corrector |
CN205490485U (zh) * | 2016-02-26 | 2016-08-17 | 西安紫光国芯半导体有限公司 | 一种检测最终时钟输出的延迟锁相环和占空比矫正电路 |
Non-Patent Citations (1)
Title |
---|
第四章 时钟占空比校准电路的设计;伍得阳;《低抖动时钟占空比校准电路的研究与设计》;中国学术期刊(光盘版)电子杂志社;20150315;全文 * |
Also Published As
Publication number | Publication date |
---|---|
US9882570B1 (en) | 2018-01-30 |
US10122368B2 (en) | 2018-11-06 |
US10333527B2 (en) | 2019-06-25 |
US20180183444A1 (en) | 2018-06-28 |
CN108242922A (zh) | 2018-07-03 |
US20190044521A1 (en) | 2019-02-07 |
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Effective date of registration: 20220512 Address after: Grand Cayman, Cayman Islands Patentee after: Kaiwei international Co. Address before: Grand Cayman, Cayman Islands Patentee before: Marvel technologies Cayman I Effective date of registration: 20220512 Address after: Singapore, Singapore City Patentee after: Marvell Asia Pte. Ltd. Address before: Grand Cayman, Cayman Islands Patentee before: Kaiwei international Co. Effective date of registration: 20220512 Address after: Grand Cayman, Cayman Islands Patentee after: Marvel technologies Cayman I Address before: California, USA Patentee before: INPHI Corp. |