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Random split coding method, random split unit and dynamic element matching coder

A technology of dynamic component matching and encoding method, which is applied in the direction of digital-to-analog converters, etc., can solve problems such as performance impact, implementation complexity increase, serious power consumption, area and design complexity, etc., to reduce complexity and design complexity degree of effect

Active Publication Date: 2015-06-17
TSINGHUA UNIV
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Problems solved by technology

When the precision of the DAC is high, that is, when n is large, the implementation complexity of the ideal DEM encoder increases exponentially with the precision, which brings serious problems of power consumption, area and design complexity
[0005] For this reason, Galton et al. proposed a segmented DEM method, which can reduce the complexity of the DEM encoder to a certain extent, but its ma

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  • Random split coding method, random split unit and dynamic element matching coder
  • Random split coding method, random split unit and dynamic element matching coder
  • Random split coding method, random split unit and dynamic element matching coder

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Embodiment Construction

[0046] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative impo...

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Abstract

The invention provides a random split coding method. The method comprises the following steps that a binary number B of n+1 bits and a random binary number R of n bits are input, wherein 0<=B<=2n, R=RnRn-1...R2R1, and n is a natural number; according to the binary number B and the random binary number R, the binary number B is split to a binary number P of n bits and a binary number Q of n bits, wherein P=PnPn-1...P1, 0<=P<=2n-1, Q=QnQn-1...Q1, 0<=Q<=2n-1, and P+Q=B. The random split coding method is high in randomness, simple in structure and easy to implement. The invention further provides a random split unit and a dynamic element matching coder.

Description

technical field [0001] The invention relates to the technical field of digital-to-analog conversion circuits, in particular to a random split encoding method, a random split unit and a dynamic element matching encoder. Background technique [0002] With the continuous development of signal processing technology and communication technology, the interface technology between digital signal and analog signal has become the bottleneck restricting the development of digital-analog hybrid system. In order to meet the high-speed and high-precision data conversion requirements, a digital-to-analog converter (Digital to Analog Converter, DAC) and an analog-to-digital converter need to achieve the highest possible speed and precision. Among modern high-speed digital-to-analog converters, current-mode digital-to-analog converters have become the first choice of engineers because they can directly drive resistive loads and have the advantages of fast working speed. [0003] A common cu...

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Application Information

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IPC IPC(8): H03M1/66
Inventor 李学清刘嘉男杨华中汪蕙魏琦乔飞徐震
Owner TSINGHUA UNIV