Crystal oscillator circuit

A crystal oscillator and circuit technology, applied in the direction of power oscillators, electrical components, etc., can solve the problems of long waiting time, long frequency stabilization time, etc., to achieve the effect of ensuring work performance and shortening waiting time

Active Publication Date: 2013-01-09
GUANGDONG DAPU TELECOM TECH CO LTD
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After power-on, the output frequency of the crystal oscillator changes rapidly with the heating process of the constant temperature circuit to the constant temperature bath, until the constant temperature bath reaches a stable temperature point, and the output frequency of the constant temperature ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Crystal oscillator circuit
  • Crystal oscillator circuit
  • Crystal oscillator circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings.

[0029] figure 1 is a schematic diagram of a crystal oscillator circuit according to an embodiment of the present invention. Such as figure 1 As shown, the crystal oscillator circuit includes a first crystal oscillator 10, a second crystal oscillator 20 and an output control circuit 30; the frequency stabilization time of the second crystal oscillator 20 is shorter than that of the first crystal oscillator 10 .

[0030] The output control circuit 30 is used to output the signal generated by the s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a crystal oscillator circuit which comprises a first crystal oscillator, a second crystal oscillator and an output control circuit. The frequency stabilization time of the second crystal oscillator is shorter than that of the first crystal oscillator. The output control circuit is used for outputting signals generated by the second crystal oscillator before the frequency of the first crystal oscillator is stabilized and outputting signals generated by the first crystal oscillator after the frequency of the first crystal oscillator is stabilized. The work performance of the crystal oscillator circuit is ensured, and waiting time of normal work of the crystal oscillator circuit after the crystal oscillator circuit is electrified is greatly shortened.

Description

technical field [0001] The invention relates to the field of crystal oscillator manufacturing, in particular to a crystal oscillator circuit. Background technique [0002] Quartz crystal oscillator is a high-precision and high-stability oscillator, which is widely used in various oscillating circuits such as color TVs, computers, remote controls, and as a frequency generator in communication systems to generate clock signals for data processing equipment and provide a reference signal for a particular system. [0003] Oven-controlled crystal oscillator (OCXO) is currently the crystal oscillator with the highest frequency stability and precision. It has excellent performance in terms of aging rate, temperature stability, long-term stability and short-term stability. Therefore, as a precision time Frequency signal sources are widely used in various fields. [0004] At present, when the thermostatically controlled crystal oscillator is just powered on at room temperature, its...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H03B5/04
Inventor 王丹
Owner GUANGDONG DAPU TELECOM TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap