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A group pseudo-random rotary thermometer decoding circuit

A decoding circuit and thermometer code technology, which is applied in the field of packet pseudo-random rotation thermometer decoding circuit, can solve the problems of difficult high-speed and high-precision analog-to-digital converters, etc., achieves simple design structure, reduces area, improves conversion speed and The effect of precision

Active Publication Date: 2017-09-29
西安电子科技大学重庆集成电路创新研究院
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  • Claims
  • Application Information

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Problems solved by technology

[0012] However, for high-speed and high-precision analog-to-digital converters, only a small number of switching transitions and low glitch energy are required, so this method is difficult to implement for high-speed and high-precision analog-to-digital converters

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  • A group pseudo-random rotary thermometer decoding circuit
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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0043] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguis...

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Abstract

The present invention provides a group pseudo-random rotary thermometer decoding circuit, comprising: a D flip-flop module used to transmit data; used to assign binary weights to the data output by the D flip-flop module to generate a thermometer with binary weights The connection module of code, described connection module is connected with described D flip-flop module; The randomness generator that is used for carrying out randomization rotation process to the thermometer code that described connection module outputs, described randomness generator and The connection module is connected. The group pseudo-random rotary thermometer decoding circuit can improve the conversion speed and precision of the digital-to-analog converter, and at the same time, the circuit design structure is simple, so the area of ​​the decoding circuit can be reduced.

Description

technical field [0001] The invention relates to the field of digital-analog hybrid integrated circuit design, in particular to a grouped pseudo-random rotary thermometer decoding circuit that can be used in a digital-to-analog converter. Background technique [0002] With the continuous development and progress of communication technology, the ability of communication system to process signals is also continuously improved. One of the most important functions of signal processing is converting between analog and digital signals. As one of the key modules of communication equipment, the analog-to-digital converter has increasing requirements on its speed and accuracy. [0003] Current steering digital-to-analog converters are widely used in high-speed and high-precision communication systems because of their good compromise in layout area, resolution and conversion rate. [0004] Current steering digital-to-analog converters can be mainly divided into: binary code weighted ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/66
Inventor 刘马良甘萍朱樟明杨银堂张鹏
Owner 西安电子科技大学重庆集成电路创新研究院