Unlock instant, AI-driven research and patent intelligence for your innovation.

Frequency synthesizer

A technology of frequency synthesizer and frequency, applied in the field of frequency synthesizer, can solve the problem of high power consumption of the device, achieve the effect of speeding up the frequency locking time and avoiding high power consumption

Inactive Publication Date: 2013-02-27
北京中科飞鸿科技股份有限公司
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power consumption of the device is high

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
  • Frequency synthesizer
  • Frequency synthesizer
  • Frequency synthesizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] image 3 A schematic diagram of a frequency synthesizer provided in Embodiment 1 of the present invention mainly includes:

[0016] The N loop filters and the N voltage-controlled oscillators; the N loop filters and the N voltage-controlled oscillators are connected in a one-to-one manner to form N groups of circuits, and the N groups The circuits are connected in parallel; one end of the N groups of circuits connected in parallel is connected to the phase detector through the first switch, and the other end outputs the frequency-modulated signal through the second switch; the frequency-modulated signal is output through the second switch. The signal is divided into two paths: one path is directly output, and the other path is input to the phase detector; wherein, N is a natural number greater than 1.

[0017] The unit also includes:

[0018] The other input terminal of the phase detector is connected to a reference source for inputting stable frequency and low phase ...

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 frequency synthesizer which comprises N loop filters and N voltage-controlled oscillators, wherein the N loop filters and the N voltage-controlled oscillators are connected in a one-to-one way to form N groups of circuits; the N groups of circuits are connected in parallel; one end of the parallel-connected N groups of circuits is connected with a phase discriminator through a first switch, and the other end outputs a frequency-modulated signal through a second switch; and the frequency-modulated signal output through the second switch includes two paths: one path is directly output, and the other path is input to the phase discriminator, wherein N is a natural number more than 1. The frequency synthesizer disclosed by the invention can be used for accelerating the locking time of frequency, thereby reducing the power consumption.

Description

technical field [0001] The invention relates to the technical field of semiconductor integrated circuits, in particular to a frequency synthesizer. Background technique [0002] At present, with the rapid development of the communication field, the requirements for the local oscillator in the radio frequency communication system are also getting higher and higher. The improvement of indicators such as broadband, low phase noise, high stability and high jump speed has a great impact on the structure, type and function of the frequency synthesizer. Consumption, etc. have had an impact. [0003] Frequency synthesizer, also known as frequency synthesizer and frequency source, its main function is to generate various forms of frequency signals required by electronic systems, such as generating single frequency point continuous wave, frequency hopping signal, step frequency signal, linear frequency modulation signal, Signal forms required by various electronic systems such as lin...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/08H03L7/18
Inventor 闫志鹏
Owner 北京中科飞鸿科技股份有限公司