FREQUENCY CONTROL SYSTEM WITH DUAL-INPUT BIAS GENERATOR TO SEPARATELY RECEIVE MANAGEMENT AND OPERATIONAL CONTROLS
    1.
    发明申请
    FREQUENCY CONTROL SYSTEM WITH DUAL-INPUT BIAS GENERATOR TO SEPARATELY RECEIVE MANAGEMENT AND OPERATIONAL CONTROLS 有权
    具有双输入偏置发电机的频率控制系统,以分别接收管理和运行控制

    公开(公告)号:US20140340129A1

    公开(公告)日:2014-11-20

    申请号:US13977424

    申请日:2012-04-13

    IPC分类号: H03L7/16 H03L7/08

    摘要: Methods and systems to control an output frequency relative to a reference frequency. A frequency control system includes a dual-input bias generator to separately receive management and operational controls. The bias generator includes a first bias generator circuit to generate a bias control based on a difference between the management control and a bias feedback reference during a first mode of operation, a second bias generator circuit to generate the bias control based on a difference between the operational control and the bias feedback reference during a second mode of operation, and a bias feedback reference circuit to generate the bias feedback reference based on the bias control. The first mode may include a characterization and/or a start-up mode. The second mode may include an operational mode, such as a feedback-controlled mode.

    摘要翻译: 控制相对于参考频率的输出频率的方法和系统。 频率控制系统包括双输入偏置发生器,用于分别接收管理和操作控制。 偏置发生器包括:第一偏置发生器电路,用于在第一操作模式期间基于管理控制和偏置反馈参考之间的差异产生偏置控制;第二偏置发生器电路,用于基于第一偏置发生器电路之间的差产生偏置控制; 在第二操作模式期间的操作控制和偏置反馈参考,以及偏置反馈参考电路,以基于偏置控制产生偏置反馈参考。 第一模式可以包括表征和/或启动模式。 第二模式可以包括诸如反馈控制模式的操作模式。

    Frequency control system with dual-input bias generator to separately receive management and operational controls
    2.
    发明授权
    Frequency control system with dual-input bias generator to separately receive management and operational controls 有权
    频率控制系统采用双输入偏置发生器,分别接收管理和操作控制

    公开(公告)号:US09450592B2

    公开(公告)日:2016-09-20

    申请号:US13977424

    申请日:2012-04-13

    摘要: Methods and systems to control an output frequency relative to a reference frequency. A frequency control system includes a dual-input bias generator to separately receive management and operational controls. The bias generator includes a first bias generator circuit to generate a bias control based on a difference between the management control and a bias feedback reference during a first mode of operation, a second bias generator circuit to generate the bias control based on a difference between the operational control and the bias feedback reference during a second mode of operation, and a bias feedback reference circuit to generate the bias feedback reference based on the bias control. The first mode may include a characterization and/or a start-up mode. The second mode may include an operational mode, such as a feedback-controlled mode.

    摘要翻译: 控制相对于参考频率的输出频率的方法和系统。 频率控制系统包括双输入偏置发生器,用于分别接收管理和操作控制。 偏置发生器包括:第一偏置发生器电路,用于在第一操作模式期间基于管理控制和偏置反馈参考之间的差异产生偏置控制;第二偏置发生器电路,用于基于第一偏置发生器电路之间的差产生偏置控制; 在第二操作模式期间的操作控制和偏置反馈参考,以及偏置反馈参考电路,以基于偏置控制产生偏置反馈参考。 第一模式可以包括表征和/或启动模式。 第二模式可以包括诸如反馈控制模式的操作模式。

    On-die digital-to-analog conversion testing
    6.
    发明授权
    On-die digital-to-analog conversion testing 有权
    模数转换测试

    公开(公告)号:US08314725B2

    公开(公告)日:2012-11-20

    申请号:US12883125

    申请日:2010-09-15

    IPC分类号: H03M1/10

    CPC分类号: H03M1/109 H03M1/12

    摘要: In one embodiment, an analog-to-digital conversion in an integrated circuit is evaluated by an on-die testing circuit. For example, the on-die test circuit 370 can characterize one or both of the linearity and monotonicity of the digital-to-analog conversion. The value of a conversion output for a digital input code may be compared to the value of a prior conversion output of a prior step to provide digital difference values for each step of a sweep of digital input codes. Digital difference values may be compared to one or more predetermined limits to provide one or more pass/fail tests on-board the die. Other embodiments are described and claimed.

    摘要翻译: 在一个实施例中,通过片上测试电路来评估集成电路中的模数转换。 例如,片上测试电路370可以表征数模转换的线性度和单调性之一或两者。 数字输入代码的转换输出的值可以与先前步骤的先前转换输出的值进行比较,以为扫描数字输入代码的每个步骤提供数字差值。 可以将数字差值与一个或多个预定限制进行比较,以在芯片上提供一个或多个通过/失败测试。 描述和要求保护其他实施例。

    METHOD, APPARATUS, AND SYSTEM FOR MEASURING ANALOG VOLTAGES ON DIE
    9.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR MEASURING ANALOG VOLTAGES ON DIE 有权
    用于测量模拟电压的方法,装置和系统

    公开(公告)号:US20110279149A1

    公开(公告)日:2011-11-17

    申请号:US12778874

    申请日:2010-05-12

    申请人: Atul Maheshwari

    发明人: Atul Maheshwari

    IPC分类号: H03C3/00 H03K3/03

    CPC分类号: H03K3/0315

    摘要: An analog-to-digital converter (ADC) suitable for measuring on-die DC or low frequency analog voltages may include a ring oscillator having a group of circuit cells successively and circularly coupled. Under certain circumstances, the ring oscillator may produce an output frequency that corresponds substantially linear to the input voltage. Other embodiments may be disclosed or claimed.

    摘要翻译: 适用于测量管芯直流或低频模拟电压的模数转换器(ADC)可包括环形振荡器,其具有连续且圆形耦合的一组电路单元。 在某些情况下,环形振荡器可产生与输入电压基本上线性相对应的输出频率。 可以公开或要求保护其他实施例。

    Data converter and a delay threshold comparator
    10.
    发明申请
    Data converter and a delay threshold comparator 失效
    数据转换器和延迟阈值比较器

    公开(公告)号:US20060221724A1

    公开(公告)日:2006-10-05

    申请号:US11094811

    申请日:2005-03-31

    IPC分类号: G11C7/06

    CPC分类号: G06F9/3869 G06F7/74

    摘要: For one disclosed embodiment, a converter converts 2N-bit data into an N-bit value indicating a number of bits in the data that have a predetermined logical value. The converter includes N comparators, each determining whether the number of bits in the data having the predetermined logical value exceeds a respective one of a plurality of reference values. The N-bit value is generated based on the outputs of the comparators. For another disclosed embodiment, a first delay element delays a signal based on a number of bits in a data value having a predetermined logical value, and a second delay element delays the signal based on a number of bits in a reference value having the predetermined logical value. A comparator then generates a bit value based on the delayed signals.

    摘要翻译: 对于一个所公开的实施例,转换器将2个N位数据转换为指示具有预定逻辑值的数据中的位数的N位值。 转换器包括N个比较器,每个比较器确定具有预定逻辑值的数据中的位数是否超过多个参考值中的相应一个。 基于比较器的输出产生N位值。 对于另一个公开的实施例,第一延迟元件基于具有预定逻辑值的数据值中的位数来延迟信号,并且第二延迟元件基于具有预定逻辑的参考值中的位数来延迟该信号 值。 比较器然后基于延迟信号产生位值。