CN103618518A - Crystal oscillator - Google Patents
Crystal oscillator Download PDFInfo
- Publication number
- CN103618518A CN103618518A CN201310617712.3A CN201310617712A CN103618518A CN 103618518 A CN103618518 A CN 103618518A CN 201310617712 A CN201310617712 A CN 201310617712A CN 103618518 A CN103618518 A CN 103618518A
- Authority
- CN
- China
- Prior art keywords
- oscillation
- module
- crystal oscillator
- crystal
- oscillation module
- 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.)
- Pending
Links
Images
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
The invention discloses a crystal oscillator which comprises a metal shielding outer shell, an oscillation isolator fixed in the metal shielding outer shell and an oscillation system. The oscillation system is composed of an oscillation module, an isolating amplification circuit and a filter circuit. The oscillation system further comprises a fast oscillation starting module. According to the crystal oscillator, the fast oscillation starting module is added, after an oscillation module is enabled, the fast oscillation starting module provides an existing signal to the oscillation module, the oscillation of the oscillation module is accelerated, and thus the oscillation starting time of the oscillation module is shortened. Meanwhile, the crystal oscillator has the advantages of being simple in circuit and low in energy consumption.
Description
Technical field
The present invention relates to a kind of crystal oscillator.
Background technology
Crystal oscillator is the oscillator of a kind of high accuracy and high stability, be widely used in all kinds of oscillating circuits such as colour TV, computer, remote controller, and in communication system for frequency generator, provide reference signal for data processing equipment clocking with for particular system.International Electrotechnical Commission (IEC) is divided into 4 classes by quartz oscillator: common crystal oscillation (SPXO), voltage type crystal oscillator (VCXO), temp. compensation type crystal oscillation (TCXO), thermostatic control formula crystal oscillation (OCXO).
Development along with electronics miniaturization, the equipment of complete machine vibration damping self has been cancelled huge vibration absorber, then require crystal oscillator itself to have higher resistance to vibration, yet existing crystal oscillator is because self resistance to vibration is far not by far up to the mark and cannot meets practical application.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of circuit simply and has the crystal oscillator of lower power consumption.
For solving the problems of the technologies described above, a kind of crystal oscillator of the present invention, comprise metallic shield shell, be fixed on the vibration isolator in described metallic shield shell, and be arranged on the oscillatory system being electrically connected to described metallic shield shell on this vibration isolator, described oscillatory system is by oscillation module, the isolating amplifier circuit that the oscillation frequency signal that oscillation module is produced amplifies and the filter circuit being connected with isolating amplifier circuit output form, the oscillating circuit that described oscillation module produces oscillation frequency signal by crystal resonator and auxiliary crystal resonator forms, described oscillating circuit is connected with isolating amplifier circuit, described oscillatory system also comprises fast start-up module, described fast start-up module is connected to the crystal of described oscillation module, when described crystal oscillator being applied after an enable signal, described fast start-up module produces an initial excitation signal to the crystal of described oscillation module, shortens the Induction Peried of described oscillation module.
Compared with prior art, the beneficial effect that the present invention has is:
The present invention is by increasing by a fast start-up module at crystal oscillator, after enabling oscillation module, described fast start-up module provides a pumping signal to described oscillation module, accelerate the vibration of described oscillation module, thereby shorten the Induction Peried of described oscillation module, there is circuit simple, effect low in energy consumption simultaneously.The present invention produces oscillation frequency signal by crystal resonator and oscillation module are set, and because this crystal resonator and oscillation module are all arranged in metallic shield shell, so it produces in the process of frequency signal and can not be subject to extraneous any interference.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the theory diagram of a kind of crystal oscillator of the present invention.
Embodiment
As shown in Figure 1, a kind of crystal oscillator, comprise metallic shield shell, be fixed on the vibration isolator in described metallic shield shell, and be arranged on the oscillatory system being electrically connected to described metallic shield shell on this vibration isolator, described oscillatory system is by oscillation module, the isolating amplifier circuit that the oscillation frequency signal that oscillation module is produced amplifies and the filter circuit being connected with isolating amplifier circuit output form, the oscillating circuit that described oscillation module produces oscillation frequency signal by crystal resonator and auxiliary crystal resonator forms, described oscillating circuit is connected with isolating amplifier circuit, described oscillatory system also comprises fast start-up module, described fast start-up module is connected to the crystal of described oscillation module, when described crystal oscillator being applied after an enable signal, described fast start-up module produces an initial excitation signal to the crystal of described oscillation module, shortens the Induction Peried of described oscillation module.
The present invention is by increasing by a fast start-up module at crystal oscillator, after enabling oscillation module, described fast start-up module provides a pumping signal to described oscillation module, accelerate the vibration of described oscillation module, thereby shorten the Induction Peried of described oscillation module, there is circuit simple, effect low in energy consumption simultaneously.The present invention produces oscillation frequency signal by crystal resonator and oscillation module are set, and because this crystal resonator and oscillation module are all arranged in metallic shield shell, so it produces in the process of frequency signal and can not be subject to extraneous any interference.
Claims (1)
1. a crystal oscillator, comprise metallic shield shell, be fixed on the vibration isolator in described metallic shield shell, and be arranged on the oscillatory system being electrically connected to described metallic shield shell on this vibration isolator, it is characterized in that: described oscillatory system is by oscillation module, the isolating amplifier circuit that the oscillation frequency signal that oscillation module is produced amplifies and the filter circuit being connected with isolating amplifier circuit output form, the oscillating circuit that described oscillation module produces oscillation frequency signal by crystal resonator and auxiliary crystal resonator forms, described oscillating circuit is connected with isolating amplifier circuit, described oscillatory system also comprises fast start-up module, described fast start-up module is connected to the crystal of described oscillation module, when described crystal oscillator being applied after an enable signal, described fast start-up module produces an initial excitation signal to the crystal of described oscillation module, shortens the Induction Peried of described oscillation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617712.3A CN103618518A (en) | 2013-11-27 | 2013-11-27 | Crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617712.3A CN103618518A (en) | 2013-11-27 | 2013-11-27 | Crystal oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103618518A true CN103618518A (en) | 2014-03-05 |
Family
ID=50169222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617712.3A Pending CN103618518A (en) | 2013-11-27 | 2013-11-27 | Crystal oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103618518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019183875A1 (en) * | 2018-03-29 | 2019-10-03 | 深圳市汇顶科技股份有限公司 | Crystal oscillator, and oscillation frequency adjustment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494446A (en) * | 2008-01-25 | 2009-07-29 | 日本电波工业株式会社 | Crystal oscillator for surface mounting |
| CN101686038A (en) * | 2008-09-24 | 2010-03-31 | 日本电波工业株式会社 | Constant-temperature type crystal oscillator |
| CN103178835A (en) * | 2013-03-08 | 2013-06-26 | 无锡泽太微电子有限公司 | Crystal oscillator and method for enabling same to oscillate acceleratedly |
| CN103346750A (en) * | 2013-07-26 | 2013-10-09 | 成都天奥电子股份有限公司 | High-vibration-resisting crystal oscillator based on constant-temperature control |
-
2013
- 2013-11-27 CN CN201310617712.3A patent/CN103618518A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494446A (en) * | 2008-01-25 | 2009-07-29 | 日本电波工业株式会社 | Crystal oscillator for surface mounting |
| CN101686038A (en) * | 2008-09-24 | 2010-03-31 | 日本电波工业株式会社 | Constant-temperature type crystal oscillator |
| CN103178835A (en) * | 2013-03-08 | 2013-06-26 | 无锡泽太微电子有限公司 | Crystal oscillator and method for enabling same to oscillate acceleratedly |
| CN103346750A (en) * | 2013-07-26 | 2013-10-09 | 成都天奥电子股份有限公司 | High-vibration-resisting crystal oscillator based on constant-temperature control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019183875A1 (en) * | 2018-03-29 | 2019-10-03 | 深圳市汇顶科技股份有限公司 | Crystal oscillator, and oscillation frequency adjustment method |
| US10879917B2 (en) | 2018-03-29 | 2020-12-29 | Shenzhen GOODIX Technology Co., Ltd. | Crystal oscillator and method for adjusting oscillation frequency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102739243B (en) | Low phase noise phase-locked medium oscillator | |
| CN203119878U (en) | Physical system of atomic frequency standard | |
| CN103117725B (en) | Crystal oscillator oscillation-starting circuit suitable for multi-frequency crystals | |
| CN103856215A (en) | Low-power-consumption chip level atomic clock physical packaging device | |
| CN103117705A (en) | Crystal oscillation circuit capable of starting oscillation fast and oscillating stably | |
| CN105071803A (en) | Temperature and process compensation ring oscillator | |
| CN103354447A (en) | Compensation system used for MEMS resonator | |
| CN109120231A (en) | The single contact crystal vibration device and operating method of fast start-up | |
| CN102624332A (en) | Method of determining load capacitance of crystal oscillation circuit, and electronic apparatus using the same | |
| CN103618518A (en) | Crystal oscillator | |
| CN105047189A (en) | Fully-integrated single-coil electromagnetic buzzer driving circuit | |
| CN205212817U (en) | Broadband frequency agility frequency synthesizer | |
| CN103346750B (en) | Based on the resistance to crystal oscillator that shakes of thermostatically controlled height | |
| GB2533752A (en) | Method and apparatus for mitigating radio frequency interference (RFI) in an electrical device | |
| US20140320220A1 (en) | Oven controlled crystal oscillator and manufacturing method thereof | |
| CN203166876U (en) | Miniaturized atomic frequency standard | |
| EP3487069B1 (en) | Crystal oscillator circuit | |
| CN111373885B (en) | Rubidium clock circuit structure for temperature coefficient compensation by utilizing step frequency multiplier | |
| CN202998067U (en) | Frequency standard based on two microwave detection systems | |
| CN102159015A (en) | Low-power consumption spectral lamp device of rubidium atomic frequency standard | |
| CN103117704B (en) | Double-groove constant temperature crystal oscillator | |
| CN204304951U (en) | A kind of high stability quartz-crystal resonator | |
| CN203788273U (en) | Signal source module for satellite navigation anti-interference antenna radio-frequency unit | |
| CN203457119U (en) | Thermostatic control-based highly anti-vibration crystal oscillator | |
| CN107681980A (en) | A kind of Low-noise temperature compensation crystal oscillator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |