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    • 1. 发明授权
    • Three-level digital-to-analog converter
    • 三电平数模转换器
    • US08456341B2
    • 2013-06-04
    • US13134301
    • 2011-06-03
    • Rahmi HezarBaher HarounHalil KiperMounir FaresAjay Kumar
    • Rahmi HezarBaher HarounHalil KiperMounir FaresAjay Kumar
    • H03M1/66
    • H03M1/66H03M1/747H03M3/464
    • A system for processing a signal includes a detector configured to detect a two-level stream of bits; a converter configured to generate a three-level control signal based on two adjacent values within the two-level stream of bits; and a switch configured to determine which of three different paths to couple a current source to based on a value of the three-level control signal. Thus, based on adjacent values of the output stream a three-level control signal is generated which controls coupling of the current source to one of three different paths. This type of three-level digital-to-analog converter can be, for example, part of the feedback loop of an analog-to-digital converter. Similar techniques can also be utilized in a multi-segment digital-to-analog converter in which each segment of the DAC is controlled by a 3-level control signal and the DAC is implement using PMOS devices. The current source for each DAC segment is diverted to ground, the M-node, or the P-node depending on the value of the 3-level control signal.
    • 一种用于处理信号的系统包括:检测器,被配置为检测两级比特流; 转换器,被配置为基于所述两级比特流内的两个相邻值生成三电平控制信号; 以及开关,被配置为基于三电平控制信号的值来确定三个不同路径中的哪一个耦合电流源。 因此,基于输出流的相邻值,生成三电平控制信号,其控制电流源与三个不同路径之一的耦合。 这种类型的三电平数模转换器可以是例如模数转换器的反馈回路的一部分。 类似技术也可以用在多段数模转换器中,其中DAC的每个段由3电平控制信号控制,并且使用PMOS器件来实现DAC。 每个DAC段的电流源根据3电平控制信号的值转移到地,M节点或P节点。
    • 2. 发明申请
    • Three-level digital-to-analog converter
    • 三电平数模转换器
    • US20120306678A1
    • 2012-12-06
    • US13134301
    • 2011-06-03
    • Rahmi HezarBaher HarounHalil KiperMounir FaresAjay Kumar
    • Rahmi HezarBaher HarounHalil KiperMounir FaresAjay Kumar
    • H03M1/72
    • H03M1/66H03M1/747H03M3/464
    • A system for processing a signal includes a detector configured to detect a two-level stream of bits; a converter configured to generate a three-level control signal based on two adjacent values within the two-level stream of bits; and a switch configured to determine which of three different paths to couple a current source to based on a value of the three-level control signal. Thus, based on adjacent values of the output stream a three-level control signal is generated which controls coupling of the current source to one of three different paths. This type of three-level digital-to-analog converter can be, for example, part of the feedback loop of an analog-to-digital converter. Similar techniques can also be utilized in a multi-segment digital-to-analog converter in which each segment of the DAC is controlled by a 3-level control signal and the DAC is implement using PMOS devices. The current source for each DAC segment is diverted to ground, the M-node, or the P-node depending on the value of the 3-level control signal.
    • 一种用于处理信号的系统包括:检测器,被配置为检测两级比特流; 转换器,被配置为基于所述两级比特流内的两个相邻值生成三电平控制信号; 以及开关,被配置为基于三电平控制信号的值来确定三个不同路径中的哪一个耦合电流源。 因此,基于输出流的相邻值,生成三电平控制信号,其控制电流源与三个不同路径之一的耦合。 这种类型的三电平数模转换器可以是例如模数转换器的反馈回路的一部分。 类似的技术也可以用在多段数模转换器中,其中DAC的每个段由3电平控制信号控制,并且使用PMOS器件实现DAC。 每个DAC段的电流源根据3电平控制信号的值转移到地,M节点或P节点。