Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Signal synchronization device and digital signal output device

A digital signal output and signal synchronization technology, applied in the direction of synchronizing information channels, transforming continuous pulse chains into pulse chain devices with required modes, automatic power control, etc., can solve the problem that two-stage flip-flop synchronization circuits are not suitable for real-time Control and other issues to meet the real-time control requirements, avoid abnormalities, and avoid metastable phenomena

Pending Publication Date: 2022-07-19
NUVOTON
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the digital signal will have a signal delay of two cycles when passing through the two-stage flip-flop, the two-stage flip-flop synchronous circuit is not suitable for applications requiring real-time control

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
  • Signal synchronization device and digital signal output device
  • Signal synchronization device and digital signal output device
  • Signal synchronization device and digital signal output device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The term "coupled" as used in this specification (including the claims) may refer to any direct or indirect connection. For example, "the first device is coupled to the second device" may be interpreted as "the first device is directly connected to the second device" or "the first device is indirectly connected to the second device through other devices or connections". Furthermore, elements / means / steps having the same reference numerals represent the same or similar parts wherever appropriate in the figures and embodiments. Elements / devices / steps with the same reference numerals or names in different embodiments may be cross-referenced.

[0024] Several embodiments are provided below to describe the present application in detail, but the present application is not limited to the provided embodiments, and the provided embodiments may be appropriately combined. In the following embodiments, the same or similar reference numerals represent the same or similar components ...

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

A digital circuit counts a first frequency signal to generate a count value and generates an output voltage according to the count value, an analog circuit generates a feedback signal according to the output voltage, and a synchronization circuit samples the feedback signal according to a second frequency signal to generate a synchronization signal. The control circuit generates a voltage control signal according to the second frequency signal and the synchronization signal to control the digital circuit to stop counting the first frequency signal, wherein the frequency of the first frequency signal is lower than that of the second frequency signal.

Description

technical field [0001] The invention relates to an electronic device, in particular to a signal synchronization device and a digital signal output device. Background technique [0002] The development of integrated circuits has become more complicated. A chip not only integrates analog and digital circuit designs, but also has several operating areas with different frequencies inside the digital circuit. The metastable phenomenon occurs in the digital signal, and the digital signal relies on the synchronization circuit to avoid the metastable phenomenon in the cross-frequency domain. [0003] In the prior art, the commonly used synchronous circuit is designed to avoid the occurrence of metastable phenomenon by connecting two-stage flip-flops (D flip-flops) in series. Wherein, when a metastable phenomenon occurs in the first-stage flip-flop, the second-stage flip-flop can correct the signal with the metastable phenomenon, so as to avoid the digital circuit operation error ca...

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): H03L7/16H03K5/156
CPCH03L7/16H03K5/156H03L7/0991H03L7/148H04L7/0008
Inventor 刘则言
Owner NUVOTON
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com