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Analog to Digital Converter

A digital converter and comparator technology, applied in the direction of analog/digital conversion, analog conversion, code conversion, etc., can solve problems such as noise, and achieve the effect of reducing noise

Active Publication Date: 2021-07-20
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional analog-to-digital converters (ADCs) often have some adverse effects (e.g., noise)

Method used

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  • Analog to Digital Converter
  • Analog to Digital Converter
  • Analog to Digital Converter

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Embodiment Construction

[0028] The following description is a preferred embodiment of the present invention, which is only used to illustrate the technical features of the present invention, but not to limit the scope of the present invention. While certain terms are used throughout the specification and claims to refer to specific elements, those skilled in the art should understand that manufacturers may use different names for the same element. Therefore, the description and claims do not use the difference in name as the way to distinguish components, but use the difference in function of the components as the basis for distinction. The terms "element", "system" and "apparatus" used in the present invention may be a computer-related entity, where the computer may be hardware, software, or a combination of hardware and software. The terms "comprising" and "including" mentioned in the following description and claims are open terms, so they should be interpreted as "including, but not limited to......

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Abstract

The present invention provides an analog-to-digital converter for converting an analog input signal into a digital output signal. The analog-to-digital converter includes a main circuit and a comparator, the main circuit is used to transmit the analog input signal to form a transmitted input signal; filter the error signal to form a filtered error signal; and transmit The filtered input signal and the filtered error signal are combined to form a combined signal. The comparator is coupled to the main circuit and is used for quantizing the combination signal to provide the output signal; wherein, the error signal is used to reflect the difference between the combination signal and the output signal. According to the present invention, noise can be reduced.

Description

technical field [0001] The present invention relates to an analog-to-digital converter (ADC), and more particularly, to an improved analog-to-digital converter (ADC) with enhanced noise shaping. Background technique [0002] Analog-to-digital converters (ADCs) are essential to modern electronic devices, eg, analog-to-digital converters (ADCs) are widely used in communication circuits (eg, wireless transceivers) of mobile phones and smartphones. However, conventional analog-to-digital converters (ADCs) often have some adverse effects (eg, noise). Contents of the invention [0003] In view of this, one object of the present invention is to provide an analog-to-digital converter to solve the above problems. [0004] In a first aspect, the present invention provides an analog-to-digital converter for converting an analog input signal into a digital output signal. The analog-to-digital converter includes a main circuit and a first comparator, the main circuit is used to trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/08H03M1/46
CPCH03M1/0863H03M1/468H03M3/426H03M3/458H03M3/47H03M1/0626H03M1/1245
Inventor 蔡任桓
Owner MEDIATEK INC
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