Dual digital to time converter (DTC) based differential correlated double sampling DTC calibration
    13.
    发明授权
    Dual digital to time converter (DTC) based differential correlated double sampling DTC calibration 有权
    双数字到时间转换器(DTC)的差分相关双采样DTC校准

    公开(公告)号:US09520890B1

    公开(公告)日:2016-12-13

    申请号:US14998238

    申请日:2015-12-23

    CPC classification number: H03M1/1014 H03M1/82

    Abstract: A system for calibrating a digital to time converter (DTC), includes a first DTC configured to receive a first digital input code and generate a first DTC output signal, and a second DTC configured to receive a second digital input code and generate a second DTC output signal. Further, the system includes a delay circuit configured to apply a first delay to the first DTC output signal to generate a first delayed DTC output signal and a phase detector circuit configured to determine a phase difference between the first delayed DTC output signal and the second DTC output signal, thereby generating a phase detector output. In addition, the system includes a calibration circuit configured to adjust the first digital input code of the first DTC to an adjusted first code that minimizes the phase detector output, based on a search algorithm.

    Abstract translation: 一种用于校准数字到时间转换器(DTC)的系统,包括被配置为接收第一数字输入代码并产生第一DTC输出信号的第一DTC,以及被配置为接收第二数字输入代码并生成第二DTC的第二DTC 输出信号。 此外,该系统包括延迟电路,该延迟电路被配置为对第一DTC输出信号施加第一延迟以产生第一延迟DTC输出信号,以及相位检测器电路,其被配置为确定第一延迟DTC输出信号和第二DTC输出信号之间的相位差 输出信号,从而产生相位检测器输出。 此外,该系统包括校准电路,其被配置为基于搜索算法将第一DTC的第一数字输入码调整到最小化相位检测器输出的经调整的第一代码。

    Digital-to-time converter and methods for generating phase-modulated signals
    14.
    发明授权
    Digital-to-time converter and methods for generating phase-modulated signals 有权
    数字时间转换器和用于产生相位调制信号的方法

    公开(公告)号:US09071304B2

    公开(公告)日:2015-06-30

    申请号:US13969132

    申请日:2013-08-16

    Abstract: Embodiments of a digital-to-time converter (DTC) and methods for generating phase-modulated signals are generally described herein. In some embodiments, a divide by 2N+/−1 operation on an oscillator signal generates first and second divider signals, the first divider signal is sampled to provide a rising-edge correlated signal, a divider unit output signal is sampled to provide a falling edge correlated signal, and either the second divider signal or a delayed version of the second divider signal is provided as the divider unit output signal. A selection between the rising-edge and the falling-edge correlated signals generates edge signals. A fine phase-modulated output signal is generated based on an edge interpolation between a first and second edge signals.

    Abstract translation: 数字 - 时间转换器(DTC)的实施例以及用于产生相位调制信号的方法在这里通常被描述。 在一些实施例中,对振荡器信号进行2N +/- 1次除法产生第一和第二除法器信号,对第一分频器信号进行采样以提供上升沿相关信号,对分频器单元输出信号进行采样以提供下降沿 并且第二除法器信号或第二除法器信号的延迟版本被提供作为除法器单元输出信号。 上升沿和下降沿相关信号之间的选择产生边沿信号。 基于第一和第二边缘信号之间的边缘内插产生精细的相位调制输出信号。

    Direct digital frequency generation using time and amplitude
    20.
    发明授权
    Direct digital frequency generation using time and amplitude 有权
    直接数字频率产生使用时间和幅度

    公开(公告)号:US09288841B2

    公开(公告)日:2016-03-15

    申请号:US14138508

    申请日:2013-12-23

    Abstract: This application discusses, among other things, apparatus and methods for sharing a local oscillator between multiple wireless devices. In certain examples, an apparatus can include a central frequency synthesizer configured to provide a central oscillator signal having a first frequency, a first transmitter, the first transmitter including a first transmit digital-to-time converter (DTC) configured to receive the central oscillator signal and to provide a first transmitter signal having a second frequency, and a first receiver, the first receiver including a first receive DTC configured to receive the central oscillator signal and to provide a first receiver signal having a first receive frequency.

    Abstract translation: 本应用程序还讨论了用于在多个无线设备之间共享本地振荡器的装置和方法。 在某些示例中,装置可以包括配置成提供具有第一频率的中心振荡器信号的中央频率合成器,第一发射机,第一发射机包括被配置为接收中心振荡器的第一发射数字 - 时间转换器(DTC) 并且提供具有第二频率的第一发射机信号和第一接收机,所述第一接收机包括被配置为接收中心振荡器信号并提供具有第一接收频率的第一接收机信号的第一接收DTC。

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