INTERNAL JITTER TOLERANCE TESTER WITH AN INTERNAL JITTER GENERATOR
    5.
    发明申请
    INTERNAL JITTER TOLERANCE TESTER WITH AN INTERNAL JITTER GENERATOR 有权
    具有内部发电机的内部耐力测试仪

    公开(公告)号:US20150124861A1

    公开(公告)日:2015-05-07

    申请号:US14070249

    申请日:2013-11-01

    CPC classification number: H04L1/205 G01R31/31709 H04L1/244

    Abstract: Exemplary embodiments of the present invention relate to an internal jitter tolerance tester. The internal jitter tolerance tester may include a digital loop filter consisting of a cyclic accumulator which accumulates a phase detector's output, a gain multiplier, an internal accumulated jitter generator (or an internal sinusoid jitter generator), and a phase rotator (or DCO) controller.The internal accumulated jitter generator may include a PRBS generator, a digital loop filter, an accumulator, and a gain controller. The accumulated jitter generator also may be replaced with the internal sinusoid jitter generator. The internal sinusoid jitter generator may include a counter, a sinusoid jitter profile lookup table, and a gain controller.

    Abstract translation: 本发明的示例性实施例涉及内部抖动容限测试器。 内部抖动容差测试器可以包括一个数字环路滤波器,它包括累积相位检测器的输出的循环累加器,增益乘法器,内部累积抖动发生器(或内部正弦曲线抖动发生器)以及相位旋转器(或DCO)控制器 。 内部累积抖动发生器可以包括PRBS发生器,数字环路滤波器,累加器和增益控制器。 累积的抖动发生器也可以用内部正弦曲线发生器代替。 内部正弦曲线抖动发生器可以包括计数器,正弦曲线抖动曲线查找表和增益控制器。

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