Crystal oscillator circuit

A crystal oscillator circuit, crystal oscillator technology, applied in electrical components, power oscillators, etc., can solve the problems of slow start-up speed and large phase noise.

Active Publication Date: 2018-06-05
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a crystal oscillator circuit to solve the problems of

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

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. 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 some structures related to the present invention are shown in the drawings but not all structures.

[0016] Existing crystal oscillator circuits such as figure 1 as shown, figure 1 It is a structural schematic diagram of a crystal oscillator circuit provided in the prior art. refer to figure 1 , the crystal oscillator circuit includes a first current source I S1 , the first current source 111 and the negative resistance device 112, the first current source I S1 Used to generate a bias current, after the bias current passes through the first current source 111 (including two transistors: the first transistor M...

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

An embodiment of the invention discloses a crystal oscillator circuit, which comprises a crystal oscillator module and an accelerating oscillation starting module, wherein the crystal oscillator module comprises a first current source, a first current mirror and a negative resistance device; the input end of the first current mirror is electrically connected to the first current source, the outputend of the first current mirror is electrically connected to the first connection end of the negative resistance device, and the second connection end of the negative resistance device is grounded; the accelerating oscillation starting module comprises an amplification unit, a switch unit and a peak detection unit; the control end of the amplification unit is electrically connected to the first current source, the first connection end of the amplification unit is electrically connected to the first connection end of the switch unit, and the second connection end of the amplification unit is electrically connected to the first level end; the second connecting end of the switch unit is electrically connected to the first connection end of the negative resistance device, and the control endof the switch unit is electrically connected to the output end of the peak detection unit; and the input end of the peak detection unit is electrically connected to the control end of the negative resistance device. According to the technical scheme provided by the embodiments of the invention, the problems that the existing crystal oscillator circuit is low in oscillation starting speed and largein phase noise can be solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electronic circuits, in particular to a crystal oscillator circuit. Background technique [0002] With the development of society and technology, especially with the rise of big data, all walks of life are in the stage of rapid growth of data volume. In addition to higher requirements for storage capacity and computing speed, the growth of data volume is also a key requirement for high-speed data transmission. High-speed data transmission not only requires the accuracy of the data, but also has high requirements on the speed of turning on and off the main functional modules of the data transmission, and the wake-up speed of the chip. At the same time, it cannot increase too much power consumption, and the chip maintains a low power consumption design. . High-speed data processing circuits require a high-speed reference clock, and the precision and start-up speed of the reference cl...

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): H03B5/12H03B7/00
CPCH03B5/1206H03B5/1234H03B7/00
Inventor 夏冰陆鹏
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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