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

Analog-to-digital converters and analog-to-digital conversion methods

An analog-to-digital converter and a digital-to-digital converter technology, which is applied in the field of signal processing devices, can solve the problems of large size and high cost of SARADC, reduce the size and production cost, and ensure the effect of high-precision analog-to-digital conversion.

Inactive Publication Date: 2013-01-30
MEDIATEK SINGAPORE PTE LTD SINGAPORE
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the high-precision SAR ADC occupies too much volume and high cost

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
  • Analog-to-digital converters and analog-to-digital conversion methods
  • Analog-to-digital converters and analog-to-digital conversion methods
  • Analog-to-digital converters and analog-to-digital conversion methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The following description is of the preferred contemplated modes of carrying out the invention. This description is for the purpose of illustrating the principle of the invention, not as a limitation of the invention.

[0014] Please refer to figure 1 and figure 2 , which are schematic structural diagrams of an embodiment of the analog-to-digital converter 100 of the present invention. The ADC 100 includes a Most Significant Bit (MSB) conversion module 11 , a SAR ADC conversion module 12 , and an operation module 13 .

[0015] The MSB conversion module 11 is used to receive the analog signal to be converted, and perform conversion processing on the analog signal to be converted, generate M most significant bits MSB and obtain a redundant signal. In this embodiment, the redundant signal is a redundant analog voltage Vo. The MSB conversion module 11 includes a sub-analog-to-digital converter (SUB ADC) 111 and a multiplication digital-to-analog converter (Multiply Dig...

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 analog-to-digital converter is provided and comprises a most significant bit (MSB) conversion module, a successive approximation register analog-to-digital converter (SAR ADC) module, and an operation module. The MSB conversion module receives an analog signal to be converted, and converts the analog signal to an MSB with M bits, and obtains a redundancy signal. The SAR ADC module is coupled to the MSB conversion module. The SAR ADC receives the redundancy signal and processes the redundancy signal to be a least significant bit (LSB) with N bits. The operation module is coupled to the MSB conversion module and the SAR ADC module. The operation module receives the MSB with the M bits and the LSB with the N bits and generates a first digital signal with (M+N) bits. Each of M and N is positive, and (M+N) is a positive integer. According to the invention, the converters and the methods guarantee high-precision analog-to-digital conversion and at the same time significantly reduce size and production cost of the analog-to-digital converters.

Description

technical field [0001] The present invention relates to a signal processing device and method, and more particularly to an analog-to-digital converter and an analog-to-digital conversion method. Background technique [0002] In recent years, with the rapid development of digital signal processing technology, information processing tasks such as filtering, frequency conversion, modulation / demodulation, etc. have entered the digital field. In order to use powerful digital signal processing techniques to process analog signals in the real world, analog-to-digital converters that bridge the gap between analog and digital signals, such as in televisions, mobile devices, and other consumer electronics, have been widely used. [0003] A Successive Approximation Register Analog to Digital Converter (SAR ADC) is a common ADC structure for medium to high resolution applications that converts an analog voltage into digital bits using a series of stages, each of which The first stage ...

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
CPCH03M1/145H03M1/12H03M1/468H03M1/361
Inventor 刘颖异周煜凯兰坤
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE