TW200635226A - Frequency controller for a monolithic clock generator and timing/frequency reference - Google Patents
Frequency controller for a monolithic clock generator and timing/frequency referenceInfo
- Publication number
- TW200635226A TW200635226A TW094132575A TW94132575A TW200635226A TW 200635226 A TW200635226 A TW 200635226A TW 094132575 A TW094132575 A TW 094132575A TW 94132575 A TW94132575 A TW 94132575A TW 200635226 A TW200635226 A TW 200635226A
- Authority
- TW
- Taiwan
- Prior art keywords
- frequency
- frequency controller
- timing
- clock generator
- controller
- Prior art date
Links
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
In various embodiments, the invention provides a frequency controller to control and provide a stable resonant frequency of a clock generator and/or a timing and frequency reference. Such stability is provided over variations in a selected parameter such as temperature and fabrication process variations. The various apparatus embodiments include a sensor adapted to provide a signal in response to at least one parameter of a plurality of parameters; and a frequency controller adapted to modify the resonant frequency in response to the second signal. In exemplary embodiments, the sensor is implemented as a current source responsive to temperature fluctuations, and the frequency controller is implemented as a plurality of controlled reactance modules which are selectively couplable to the resonator or to one or more control voltages. The controlled reactance modules may include fixed or variable capacitances or inductances, and may be binary weighted. Arrays of resistive modules are also provided, to generate one or more control voltages.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/085,372 US7227424B2 (en) | 2004-03-22 | 2005-03-21 | Transconductance and current modulation for resonant frequency control and selection |
| US11/084,962 US7227423B2 (en) | 2004-03-22 | 2005-03-21 | Monolithic clock generator and timing/frequency reference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200635226A true TW200635226A (en) | 2006-10-01 |
| TWI388128B TWI388128B (en) | 2013-03-01 |
Family
ID=39423677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW94132575A TWI388128B (en) | 2005-03-21 | 2005-09-20 | Frequency controller for a monolithic clock generator and timing/frequency reference |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101194416A (en) |
| TW (1) | TWI388128B (en) |
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| CN101777910B (en) * | 2010-01-08 | 2012-10-17 | 无锡中星微电子有限公司 | Delay phase locked loop |
| US8358230B2 (en) * | 2011-04-28 | 2013-01-22 | Richwave Technology Corp. | Low power discrete-time electronic circuit |
| US8433255B2 (en) * | 2011-07-05 | 2013-04-30 | Fujitsu Semiconductor Limited | System and method for reducing temperature-dependent and process-dependent frequency variation of a crystal oscillator circuit |
| US8570108B2 (en) * | 2011-08-05 | 2013-10-29 | Qualcomm Incorporated | Injection-locking a slave oscillator to a master oscillator with no frequency overshoot |
| US8887118B2 (en) * | 2013-02-22 | 2014-11-11 | International Business Machines Corporation | Setting switch size and transition pattern in a resonant clock distribution system |
| TWI548886B (en) * | 2014-04-18 | 2016-09-11 | 創意電子股份有限公司 | Aging detection circuit and method thereof |
| US9998105B2 (en) | 2014-05-30 | 2018-06-12 | Cypress Semiconductor Corporation | Programmable switched capacitor block |
| US9831864B2 (en) | 2014-05-30 | 2017-11-28 | Cypress Semiconductor Corporation | Programmable switched capacitor block |
| US9921239B2 (en) * | 2014-11-20 | 2018-03-20 | Stmicroelectronics, Inc. | Offset cancellation device for micro-electromechanical system |
| US9490826B1 (en) * | 2015-08-19 | 2016-11-08 | Qualcomm Incorporated | Methods and apparatus for synchronizing frequency dividers using a pulse swallowing technique |
| US10275356B2 (en) | 2015-12-11 | 2019-04-30 | Quanta Computer Inc. | Component carrier with converter board |
| CN105553501B (en) * | 2015-12-23 | 2019-01-29 | 惠州Tcl移动通信有限公司 | A kind of control device and its method of power time curve |
| CN105656481B (en) * | 2016-01-27 | 2018-08-21 | 浙江大学 | The tail current type annular oscillation circuit that frequency of oscillation has extremely low temperature discrete |
| CN106374919B (en) * | 2016-11-22 | 2020-02-18 | 成都仕芯半导体有限公司 | Frequency expanding device based on multi-path selector |
| CN109632117B (en) * | 2017-05-24 | 2020-09-11 | 杭州电子科技大学 | On-chip temperature detection method based on RC oscillator |
| CN107332557B (en) * | 2017-06-28 | 2020-08-28 | 中国科学技术大学 | Annular voltage-controlled oscillator with temperature compensation |
| CN109495075A (en) * | 2017-12-29 | 2019-03-19 | 深圳市国电科技通信有限公司 | A kind of crystal oscillating circuit with temperature-compensating |
| EP3565112B1 (en) * | 2018-03-09 | 2021-05-05 | Shenzhen Goodix Technology Co., Ltd. | Crystal oscillator |
| CN109361337B (en) | 2018-12-13 | 2024-01-12 | 上海艾为电子技术股份有限公司 | Frequency calibration method of driving voltage waveform of linear resonance device and related device |
| CN110134181B (en) * | 2019-03-29 | 2023-12-22 | 苏州冠讯电子科技有限公司 | Dynamic control crystal clock generator control system and control method |
| CN112367077B (en) * | 2019-07-26 | 2023-10-13 | 敦宏科技股份有限公司 | Intelligent low-current oscillation circuit compensation method with wide operating voltage and temperature |
| CN111817668B (en) * | 2020-09-02 | 2020-12-18 | 深圳市汇顶科技股份有限公司 | Capacitor array circuit, charging and discharging circuit and RC oscillation circuit |
| CN113395082B (en) * | 2021-06-21 | 2023-02-28 | 北京博瑞微电子科技有限公司 | Frequency-adjustable clock transmission device adopting periodic switch inductance load transmission line |
| CN113933791B (en) * | 2021-09-06 | 2022-05-27 | 珠海正和微芯科技有限公司 | Crystal-oscillator-free FMCW radar transceiver device and frequency calibration method |
| CN113900084B (en) * | 2021-09-06 | 2022-06-28 | 珠海正和微芯科技有限公司 | Crystal-oscillator-free FMCW radar transceiver system and frequency calibration method |
| CN114295955A (en) * | 2021-12-03 | 2022-04-08 | 山东岱微电子有限公司 | Chip screening method and device and chip screening equipment |
| CN116073642B (en) * | 2023-01-28 | 2023-06-16 | 艾科微电子(深圳)有限公司 | Control circuit and method of power conversion circuit and power conversion system |
-
2005
- 2005-09-20 TW TW94132575A patent/TWI388128B/en not_active IP Right Cessation
- 2005-09-21 CN CNA2005800498124A patent/CN101194416A/en active Pending
-
2006
- 2006-03-20 CN CNA2006800170063A patent/CN101176254A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TWI388128B (en) | 2013-03-01 |
| CN101194416A (en) | 2008-06-04 |
| CN101176254A (en) | 2008-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |