Method and system for calibration of a voltage controlled oscillator (VCO)
    51.
    发明申请
    Method and system for calibration of a voltage controlled oscillator (VCO) 失效
    压控振荡器(VCO)的校准方法和系统

    公开(公告)号:US20050040900A1

    公开(公告)日:2005-02-24

    申请号:US10644559

    申请日:2003-08-20

    摘要: A method for calibrating a voltage controlled oscillator (VCO) comprising applying a plurality of known voltages to the input of a VCO, monitoring, for each of the voltages, an output count from the VCO over a set interval, and storing the output counts for each voltage. Also disclosed is a system for calibrating a voltage controlled oscillator (VCO) comprising a plurality of known voltages, wherein the known voltage are connectable to the VCO, and a controller coupled to the output of the VCO, wherein the controller maintains a calibration table of VCO output counts for selected voltage inputs.

    摘要翻译: 一种用于校准压控振荡器(VCO)的方法,包括将多个已知电压施加到VCO的输入端,对于每个电压,在设定的间隔内监视来自VCO的输出计数,并将输出计数存储在 每个电压。 还公开了一种用于校准包括多个已知电压的压控振荡器(VCO)的系统,其中已知电压可连接到VCO,以及耦合到VCO的输出的控制器,其中控制器保持校准表 所选电压输入的VCO输出计数。

    System toTemporarily Modify an Output Waveform
    52.
    发明申请
    System toTemporarily Modify an Output Waveform 失效
    系统暂时修改输出波形

    公开(公告)号:US20050040870A1

    公开(公告)日:2005-02-24

    申请号:US10646936

    申请日:2003-08-22

    摘要: Systems and methods are disclosed for providing a temporarily modified output. A waveform control provides a control output that temporarily adjusts to an intermediate level between normal high and low levels during a first operating mode. The waveform control provides the control output to transition periodically between the high and low levels during a second operating mode. A delay network controls the waveform control to provide the output at the intermediate level for a duration during the first operating mode.

    摘要翻译: 公开了用于提供临时修改的输出的系统和方法。 波形控制提供在第一操作模式期间临时调整到正常高电平和低电平之间的中间电平的控制输出。 波形控制提供控制输出以在第二操作模式期间在高电平和低电平之间周期性地跳变。 延迟网络控制波形控制,以在第一操作模式期间的中间级提供输出持续一段时间。

    Adapting VLSI clocking to short term voltage transients
    53.
    发明授权
    Adapting VLSI clocking to short term voltage transients 有权
    适应VLSI时钟短期电压瞬变

    公开(公告)号:US06586971B1

    公开(公告)日:2003-07-01

    申请号:US10020114

    申请日:2001-12-18

    IPC分类号: H03D1300

    CPC分类号: G06F1/10 G06F1/305

    摘要: A system and method of compensating for voltage droop in an integrated circuit. The integrated circuit may include a plurality of chip circuits, a clock control system, a clock distribution network including at least one delay element and a voltage droop detector. The clock control system adapts cycle time in the clock distribution network through use of the at least one delay element when a voltage droop is detected. The method may include detecting a voltage droop in an integrated circuit where the integrated circuit is driven by a clock signal, determining an optimum frequency change to compensate for the voltage droop, and adapting cycle time of the clock signal in an incremental manner to achieve the optimum frequency change.

    摘要翻译: 一种补偿集成电路中电压下降的系统和方法。 集成电路可以包括多个芯片电路,时钟控制系统,包括至少一个延迟元件和电压下降检测器的时钟分配网络。 当检测到电压下降时,时钟控制系统通过使用至少一个延迟元件来适应时钟分配网络中的周期时间。 该方法可以包括检测集成电路中的电压下降,其中集成电路由时钟信号驱动,确定最佳频率变化以补偿电压下降,并以递增方式调整时钟信号的周期时间以实现 最佳频率变化。