Systems and methods for built in self test jitter measurement
    1.
    发明授权
    Systems and methods for built in self test jitter measurement 失效
    内置自检抖动测量的系统和方法

    公开(公告)号:US08283933B2

    公开(公告)日:2012-10-09

    申请号:US12707534

    申请日:2010-02-17

    CPC classification number: G01R29/26 G01R31/31709 H04L1/205

    Abstract: An apparatus configured for built in self test (BIST) jitter measurement is described. The apparatus includes a time-to-voltage converter. The time-to-voltage converter generates a voltage signal proportional to timing jitter present in a clock/data signal input. The apparatus also includes feedback circuitry for the time-to-voltage converter. The feedback circuitry provides a ramp slope for the time-to-voltage converter. The apparatus further includes a calibration controller. The calibration controller provides control signals to the time-to-voltage converter for process-independent calibration. The apparatus also includes a sample-and-hold (S/H) circuit. The S/H circuit provides a set bias voltage to the time-to-voltage converter once calibration is complete.

    Abstract translation: 描述了内置自测(BIST)抖动测量的装置。 该装置包括时间 - 电压转换器。 时间到电压转换器产生与时钟/数据信号输入中存在的定时抖动成比例的电压信号。 该装置还包括用于时间 - 电压转换器的反馈电路。 反馈电路为时间到电压转换器提供斜坡斜率。 该装置还包括校准控制器。 校准控制器为时间到电压转换器提供控制信号,用于与过程无关的校准。 该装置还包括采样保持(S / H)电路。 校准完成后,S / H电路为时间到电压转换器提供设定的偏置电压。

    METHODS AND APPARATUS FOR BUILT IN SELF TEST OF ANALOG-TO-DIGITAL CONVERTORS
    2.
    发明申请
    METHODS AND APPARATUS FOR BUILT IN SELF TEST OF ANALOG-TO-DIGITAL CONVERTORS 有权
    在模拟数字转换器自检中建立的方法和设备

    公开(公告)号:US20100253559A1

    公开(公告)日:2010-10-07

    申请号:US12697435

    申请日:2010-02-01

    CPC classification number: H03K4/501 H03K4/90 H03M1/109 H03M1/12

    Abstract: An apparatus configured for built in self test (BiST) of analog-to-digital convertors (ADCs) is described. The apparatus includes an ADC to be tested. The apparatus includes a ramp generator. The ramp generator provides a voltage ramp to the ADC. The apparatus further includes feedback circuitry for the ramp generator. The feedback circuitry maintains a constant ramp slope for the ramp generator. The apparatus includes an interval counter. The interval counter provides a timing reference.

    Abstract translation: 描述了配置用于模数转换器(ADC)的内置自检(BiST)的装置。 该装置包括要测试的ADC。 该装置包括斜坡发生器。 斜坡发生器为ADC提供电压斜坡。 该装置还包括用于斜坡发生器的反馈电路。 反馈电路为斜坡发生器保持恒定的斜坡斜率。 该装置包括间隔计数器。 间隔计数器提供定时参考。

    Methods and apparatus for built in self test of analog-to-digital convertors
    3.
    发明授权
    Methods and apparatus for built in self test of analog-to-digital convertors 有权
    模拟数字转换器内置自检的方法和装置

    公开(公告)号:US08106801B2

    公开(公告)日:2012-01-31

    申请号:US12697435

    申请日:2010-02-01

    CPC classification number: H03K4/501 H03K4/90 H03M1/109 H03M1/12

    Abstract: An apparatus configured for built in self test (BiST) of analog-to-digital convertors (ADCs) is described. The apparatus includes an ADC to be tested. The apparatus includes a ramp generator. The ramp generator provides a voltage ramp to the ADC. The apparatus further includes feedback circuitry for the ramp generator. The feedback circuitry maintains a constant ramp slope for the ramp generator. The apparatus includes an interval counter. The interval counter provides a timing reference.

    Abstract translation: 描述了配置用于模数转换器(ADC)的内置自检(BiST)的装置。 该装置包括要测试的ADC。 该装置包括斜坡发生器。 斜坡发生器为ADC提供电压斜坡。 该装置还包括用于斜坡发生器的反馈电路。 反馈电路为斜坡发生器保持恒定的斜坡斜率。 该装置包括间隔计数器。 间隔计数器提供定时参考。

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