Digital lock detector and frequency synthesizer using the same
    1.
    发明授权
    Digital lock detector and frequency synthesizer using the same 有权
    数字锁定检测器和频率合成器使用相同

    公开(公告)号:US07956658B2

    公开(公告)日:2011-06-07

    申请号:US12607395

    申请日:2009-10-28

    IPC分类号: H03L7/06

    摘要: There is provided a digital lock detector and a frequency synthesizer using the same. The digital lock detector includes a comparator unit receiving a plurality of control bits, and generating a bit signal to notice a lock condition of the plurality of control bits; a delay cell block generating a plurality of delay signals based on the bit signal, and outputting a clock signal by combining the bit signal and the plurality of delay signals; and a detection unit detecting a shift time of the clock signal, and generating a lock indication signal according to the detection result.

    摘要翻译: 提供了数字锁定检测器和使用该锁定检测器的频率合成器。 数字锁定检测器包括:接收多个控制位的比较器单元,并产生一个位信号以注意多个控制位的锁定状态; 延迟单元块,其基于所述位信号生成多个延迟信号,并通过组合所述位信号和所述多个延迟信号来输出时钟信号; 以及检测单元,其检测所述时钟信号的移位时间,并根据所述检测结果生成锁定指示信号。

    Frequency synthesizer including a digital lock detector
    2.
    发明授权
    Frequency synthesizer including a digital lock detector 有权
    频率合成器包括数字锁定检测器

    公开(公告)号:US08013641B1

    公开(公告)日:2011-09-06

    申请号:US13098332

    申请日:2011-04-29

    IPC分类号: H03B21/00

    摘要: There is provided a digital lock detector and a frequency synthesizer using the same. The digital lock detector includes a comparator unit receiving a plurality of control bits, and generating a bit signal to notice a lock condition of the plurality of control bits; a delay cell block generating a plurality of delay signals based on the bit signal, and outputting a clock signal by combining the bit signal and the plurality of delay signals; and a detection unit detecting a shift time of the clock signal, and generating a lock indication signal according to the detection result.

    摘要翻译: 提供了数字锁定检测器和使用该锁定检测器的频率合成器。 数字锁定检测器包括:接收多个控制位的比较器单元,并产生一个位信号以注意多个控制位的锁定状态; 延迟单元块,其基于所述位信号生成多个延迟信号,并通过组合所述位信号和所述多个延迟信号来输出时钟信号; 以及检测单元,其检测所述时钟信号的移位时间,并根据所述检测结果生成锁定指示信号。

    FREQUENCY CALIBRATION LOOP CIRCUIT
    3.
    发明申请
    FREQUENCY CALIBRATION LOOP CIRCUIT 失效
    频率校准环路

    公开(公告)号:US20100134192A1

    公开(公告)日:2010-06-03

    申请号:US12581105

    申请日:2009-10-16

    IPC分类号: H03L7/00

    摘要: A frequency calibration loop circuit having a pre-set frequency channel word (FCW) command value, a bit inputted to obtain a target frequency in an oscillator and a pre-set minimum division ratio n (n is a constant) of a programmable divider, includes: an oscillator adjusting a oscillation frequency according to control value; a programmable divider dividing the oscillation frequency according to a division ratio; a counter counting the number of clocks of the divided frequency by using a reference frequency; and a frequency detector outputting a value obtained by subtracting the number of the counted clocks from a reference comparison value, a value obtained by dividing a Frequency Channel Word (FCW) command value by a minimum division ratio of the programmable divider, as the control value of the oscillator.

    摘要翻译: 一种频率校准环路电路,具有预定的频道字(FCW)指令值,为了获得振荡器中的目标频率输入的比特和可编程分频器的预设最小分频比n(n是常数) 包括:振荡器根据控制值调节振荡频率; 一个可编程除法器根据分频比划分振荡频率; 通过使用参考频率对分频频率的时钟数进行计数的计数器; 输出通过从参考比较值中减去计数时钟数而得到的值的频率检测器,通过将频率通道字(FCW)指令值除以可编程分压器的最小分频比而获得的值作为控制值 的振荡器。

    Frequency calibration loop circuit
    4.
    发明授权
    Frequency calibration loop circuit 失效
    频率校准回路电路

    公开(公告)号:US08031009B2

    公开(公告)日:2011-10-04

    申请号:US12581105

    申请日:2009-10-16

    摘要: A frequency calibration loop circuit having a pre-set frequency channel word (FCW) command value, a bit inputted to obtain a target frequency in an oscillator and a pre-set minimum division ratio n (n is a constant) of a programmable divider, includes: an oscillator adjusting an oscillation frequency of an oscillation signal according to a control value; a programmable divider dividing the oscillation signal according to a division ratio to output a divided signal; a counter counting the number of clocks of the divided signal for one cycle of a reference signal to output a count value; and a frequency detector obtaining the control value by subtracting the count value from a reference comparison value, wherein the reference comparison value is obtained by dividing a Frequency Channel Word (FCW) command value by a minimum division ratio of the programmable divider.

    摘要翻译: 一种频率校准环路电路,具有预定的频道字(FCW)指令值,为了获得振荡器中的目标频率输入的比特和可编程分频器的预设最小分频比n(n是常数) 包括:振荡器,根据控制值调整振荡信号的振荡频率; 可编程分频器,根据分频比除以振荡信号,输出分频信号; 计数针对参考信号的一个周期的分频信号的时钟数,以输出计数值; 以及频率检测器,通过从参考比较值中减去计数值来获得控制值,其中通过将频率通道字(FCW)指令值除以可编程分频器的最小分频比来获得参考比较值。

    TIME-TO-DIGITAL CONVERTER AND ALL DIGITAL PHASE-LOCKED LOOP INCLUDING THE SAME
    5.
    发明申请
    TIME-TO-DIGITAL CONVERTER AND ALL DIGITAL PHASE-LOCKED LOOP INCLUDING THE SAME 有权
    时数转换器和所有数字相位锁定环路

    公开(公告)号:US20110148490A1

    公开(公告)日:2011-06-23

    申请号:US12956498

    申请日:2010-11-30

    IPC分类号: H03L7/08 H03M1/50

    摘要: An all digital phase-locked loop (ADPLL) includes: a phase counter accumulating a frequency setting word value and the phase of a digitally controlled oscillator (DCO) clock and detecting a fine phase difference between a reference clock and a retimed clock; a phase detector detecting a digital phase error value compensating for a phase difference between the frequency setting word value and the DCO clock according to the fine phase difference to detect a digital phase error value; a digital loop filter filtering the digital phase error value and controlling PLL operational characteristics; a lock detector generating a lock indication signal according an output of the digital loop filter; a digitally controlled oscillator varying the frequency of the DCO clock according to the output from the digital loop filter; and a retimed clock generator generating the retimed clock by retiming the DCO clock at a low frequency.

    摘要翻译: 全数字锁相环(ADPLL)包括:相位计数器累积频率设定字值和数字控制振荡器(DCO)时钟的相位,并检测参考时钟和重新定时钟之间的精细相位差; 相位检测器,根据所述精细相位差检测补偿所述频率设定字值与所述DCO时钟之间的相位差的数字相位误差值,以检测数字相位误差值; 数字环路滤波器滤除数字相位误差值并控制PLL的操作特性; 锁定检测器,根据数字环路滤波器的输出产生锁定指示信号; 数字控制振荡器根据数字环路滤波器的输出来改变DCO时钟的频率; 以及重新计时的时钟发生器,通过以低频再定时DCO时钟产生重定时钟。

    FRACTIONAL DIGITAL PLL WITH ANALOG PHASE ERROR COMPENSATOR
    6.
    发明申请
    FRACTIONAL DIGITAL PLL WITH ANALOG PHASE ERROR COMPENSATOR 有权
    具有模拟相位误差补偿器的数字数字锁相环

    公开(公告)号:US20120161832A1

    公开(公告)日:2012-06-28

    申请号:US13310581

    申请日:2011-12-02

    IPC分类号: H03L7/08

    摘要: Disclosed is a fractional digital phase locked loop with an analog phase error compensator. The digital phase locked loop with an analog phase error compensator can reduce excessive power consumption and power noise and transient current noise while increasing phase error detection resolution by performing fractional phase error detection and compensation through the analog phase error compensator.

    摘要翻译: 公开了具有模拟相位误差补偿器的分数字数字锁相环。 具有模拟相位误差补偿器的数字锁相环可以通过模拟相位误差补偿器进行分数相位误差检测和补偿,从而降低功耗,功耗噪声和瞬态电流噪声,同时提高相位误差检测分辨率。

    Apparatus and method for removing interference signal using selective frequency phase converter
    7.
    发明授权
    Apparatus and method for removing interference signal using selective frequency phase converter 有权
    使用选择性频率相位转换器去除干扰信号的装置和方法

    公开(公告)号:US08060020B2

    公开(公告)日:2011-11-15

    申请号:US12628684

    申请日:2009-12-01

    IPC分类号: H04B1/00

    CPC分类号: H04B1/123

    摘要: An apparatus and method for removing an interference signal using a selective frequency phase converter are disclosed. The apparatus for removing an interference signal using a selective frequency phase converter includes: a first phase converter configured to convert a phase of a received RF signal to differentially output first and second signals having a phase difference of 180° from each other; a second phase converter configured to receive the first signal and selectively convert the phase of a particular frequency band; a third phase converter configured to receive the second signal and selectively convert the phase of a particular frequency band; a timing controller configured to correct a signal delay time between the output from the second phase converter and that of the third phase converter; and an adder configured to add an output from the second phase converter and an output from the third phase converter, wherein the second and third phase converters phase-convert the first and second signals such that the phases of the signals of the particular frequency bands do not have a phase difference of 180° from each other.

    摘要翻译: 公开了一种使用选择性频率相位变换器去除干扰信号的装置和方法。 使用选择性频率相位变换器去除干扰信号的装置包括:第一相位转换器,被配置为将接收的RF信号的相位转换为差分地输出具有彼此相差180°的第一和第二信号; 第二相转换器,被配置为接收第一信号并选择性地转换特定频带的相位; 配置为接收所述第二信号并选择性地转换特定频带的相位的第三相位转换器; 定时控制器,被配置为校正来自第二相位转换器的输出和第三相位转换器的输出之间的信号延迟时间; 以及加法器,被配置为将来自第二相位转换器的输出和来自第三相位转换器的输出相加,其中第二和第三相位转换器对第一和第二信号进行相位转换,使得特定频带的信号的相位做 彼此之间没有180°的相位差。

    Fractional digital PLL with analog phase error compensator
    8.
    发明授权
    Fractional digital PLL with analog phase error compensator 有权
    具有模拟相位误差补偿器的分数字数字PLL

    公开(公告)号:US08432199B2

    公开(公告)日:2013-04-30

    申请号:US13310581

    申请日:2011-12-02

    IPC分类号: H03L7/06

    摘要: Disclosed is a fractional digital phase locked loop with an analog phase error compensator. The digital phase locked loop with an analog phase error compensator can reduce excessive power consumption and power noise and transient current noise while increasing phase error detection resolution by performing fractional phase error detection and compensation through the analog phase error compensator.

    摘要翻译: 公开了具有模拟相位误差补偿器的分数字数字锁相环。 具有模拟相位误差补偿器的数字锁相环可以通过模拟相位误差补偿器进行分数相位误差检测和补偿,从而降低功耗,功耗噪声和瞬态电流噪声,同时提高相位误差检测分辨率。

    Time-to-digital converter and all digital phase-locked loop including the same
    9.
    发明授权
    Time-to-digital converter and all digital phase-locked loop including the same 有权
    时间到数字转换器和所有数字锁相环包括相同的

    公开(公告)号:US08344772B2

    公开(公告)日:2013-01-01

    申请号:US12956498

    申请日:2010-11-30

    IPC分类号: H03L7/06

    摘要: An all digital phase-locked loop (ADPLL) includes: a phase counter accumulating a frequency setting word value and the phase of a digitally controlled oscillator (DCO) clock and detecting a fine phase difference between a reference clock and a retimed clock; a phase detector detecting a digital phase error value compensating for a phase difference between the frequency setting word value and the DCO clock according to the fine phase difference to detect a digital phase error value; a digital loop filter filtering the digital phase error value and controlling PLL operational characteristics; a lock detector generating a lock indication signal according an output of the digital loop filter; a digitally controlled oscillator varying the frequency of the DCO clock according to the output from the digital loop filter; and a retimed clock generator generating the retimed clock by retiming the DCO clock at a low frequency.

    摘要翻译: 全数字锁相环(ADPLL)包括:相位计数器累积频率设定字值和数字控制振荡器(DCO)时钟的相位,并检测参考时钟和重新定时钟之间的精细相位差; 相位检测器,根据所述精细相位差检测补偿所述频率设定字值与所述DCO时钟之间的相位差的数字相位误差值,以检测数字相位误差值; 数字环路滤波器滤除数字相位误差值并控制PLL的操作特性; 锁定检测器,根据数字环路滤波器的输出产生锁定指示信号; 数字控制振荡器根据数字环路滤波器的输出改变DCO时钟的频率; 以及重新计时的时钟发生器,通过以低频再定时DCO时钟产生重定时钟。

    Apparatus for compensating for error of time-to-digital converter
    10.
    发明授权
    Apparatus for compensating for error of time-to-digital converter 有权
    用于补偿时间 - 数字转换器误差的装置

    公开(公告)号:US07999707B2

    公开(公告)日:2011-08-16

    申请号:US12629020

    申请日:2009-12-01

    IPC分类号: H03M1/06

    摘要: An apparatus for compensating for an error of a time-to-digital converter (TDC) is disclosed to receive a delay phase from a phase detector including the TDC and a phase error including a TDC error and compensate for the TDC error to have a time resolution higher by N times (N is a natural number). The apparatus includes: a fragmenting and multiplying unit fragmenting the delay phase by N times (N is a natural number) to generate first to (N−1)th fragmented delay phases; an adding unit adding each of the first to the (N−1)th fragmented delay phases to the phase error to generate first to (N−1)th phase errors; and a comparison unit acquiring a phase error compensation value nearest to an actual phase error from the phase error and the first to (N−1)th phase errors.

    摘要翻译: 公开了用于补偿时间 - 数字转换器(TDC)的误差的装置,以从包括TDC的相位检测器和包括TDC误差的相位误差接收延迟相位并补偿TDC误差以具有时间 分辨率提高N倍(N是自然数)。 该装置包括:分段和乘法单元,将延迟相位分片N次(N是自然数),以产生第一至第(N-1)个分段延迟相位; 加法单元将第一到第(N-1)个分段延迟相位中的每一个相加到相位误差,以产生第一到第(N-1)个相位误差; 以及比较单元从相位误差和第一到第(N-1)个相位误差获取最接近实际相位误差的相位误差补偿值。