Multi-channel sampling-tracking-holding equipment and signal sampling method

A track-and-hold, multi-channel technology, used in analog-to-digital converters, electrical components, code conversion, etc., can solve problems such as high cost, high processing speed, and difficulty

Inactive Publication Date: 2018-04-13
成都中宇微芯科技有限公司
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the sample track and hold circuit with high clock frequency has high requirements on the processing speed of the subsequent analog-to-digital converter, which is costly and difficult

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
  • Multi-channel sampling-tracking-holding equipment and signal sampling method
  • Multi-channel sampling-tracking-holding equipment and signal sampling method
  • Multi-channel sampling-tracking-holding equipment and signal sampling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a multi-channel sampling tracking and holding device, including: a power dividing circuit, which is provided with an input terminal and a plurality of output terminals; a multi-channel sampling tracking and holding circuit, which is provided with a plurality of channels, and each channel is provided with a Sampling track-and-hold circuit, each output end of the power dividing circuit is respectively connected with a sub-sampling track-and-hold circuit; the multi-phase clock generation circuit is connected with each sub-sample track-and-hold circuit at the same time, and tracks two adjacent sub-samples Keep the clock signals transmitted by the circuit equally spaced.

[0057] In this embodiment, a slow-wave phase modulation circuit can also be connected in series between each sub-sampling track-and-hold circuit and the multi-phase clock generation circuit, and each sub-sampling track-and-hold circuit and the multi-phase clock generation circuit ar...

Embodiment 2

[0090] This embodiment provides a signal sampling method. The signal sampling method uses the multi-channel sampling tracking and holding device provided in Embodiment 1 to perform signal sampling, including:

[0091] The signal to be collected is divided into multi-channel branch signals to be collected by a power dividing circuit;

[0092]Transmitting each branch signal to be sampled to a multi-channel sampling track-and-hold circuit, wherein one branch signal to be sampled corresponds to a sub-sampling track-and-hold circuit;

[0093] The signal to be sampled of each branch is sampled by a multi-channel sampling track and hold circuit, wherein the clock signal of each sub-sampling track and hold circuit is generated by the same multi-phase clock generation circuit, and the signals to be sampled of two adjacent branches correspond to The clock signals received by the two sub-sampling track-and-hold circuits are equally spaced.

[0094] Specifically, sampling each branch sig...

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 multi-channel sampling-tracking-holding equipment, comprising a power division circuit, a multi-channel sampling-tracking-holding circuit and a multi-phase clock generation circuit, wherein the power division circuit is provided with one input end and multiple output ends; the multi-channel sampling-tracking-holding circuit is provided with multiple channels, each channelis provided with a sub-sampling-tracking-holding circuit, and each output end of the power division circuit is separately connected with one sub-sampling-tracking-holding circuit; and the multi-phaseclock generation circuit is simultaneously connected with each sub-sampling-tracking-holding circuit, and clock signals transmitted to the adjacent two sub-sampling-tracking-holding circuits have equal intervals. According to the scheme of the invention, the high-frequency sampling of an original high-speed signal can be realized without increasing the external sampling clock frequency of a chipor without using an external sampling clock of the chip, and high requirements for a subsequently-connected analog-to-digital converter cannot be generated.

Description

technical field [0001] The invention relates to the field of signal sampling, in particular to a multi-channel sampling tracking and holding device and a signal sampling method. Background technique [0002] With the development of high-speed and high-frequency circuits, there are more and more demands for processing high-speed and high-frequency signals, and the demand for chips including high-speed analog-to-digital converters is also increasing, and the sample track and hold circuit is an analog-to-digital converter chip. The performance index of common front-end module circuits directly affects the quantization accuracy of the analog-to-digital converter. High-speed and high-frequency signal processing needs to pass through the sample track and hold circuit first, and then input to the analog-to-digital converter for processing. For high-speed signal sampling, the main solution currently adopted is to increase the sampling clock frequency. Using the latest technological...

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): H03M1/12
CPCH03M1/1245
Inventor 刘伟李一虎熊永忠
Owner 成都中宇微芯科技有限公司
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