CN112042124A - 一种锁相环 - Google Patents

一种锁相环 Download PDF

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Publication number
CN112042124A
CN112042124A CN201880092818.7A CN201880092818A CN112042124A CN 112042124 A CN112042124 A CN 112042124A CN 201880092818 A CN201880092818 A CN 201880092818A CN 112042124 A CN112042124 A CN 112042124A
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CN
China
Prior art keywords
control
voltage
oscillator
controller
signal
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Pending
Application number
CN201880092818.7A
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English (en)
Inventor
谢磊
黄家乐
卢磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN112042124A publication Critical patent/CN112042124A/zh
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/097—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a comparator for comparing the voltages obtained from two frequency to voltage converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0992—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising a counter or a frequency divider
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals

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  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

一种锁相环，包括：振荡器；与所述振荡器中的变容管并联的数字开关电容阵列，所述数字开关电容阵列包括N个并联的开关电容，N为大于1的正整数；控制器，用于根据所述振荡器的控制电压的变化生成电平信号，以及第一控制字；调节电路，包括：平滑电路，和N个多路选通开关MUX；所述平滑电路用于延缓所述电平信号的翻转速度，得到平滑信号；所述N个MUX分别与所述N个开关电容一一对应，所述N个MUX用于根据所述第一控制字对所述平滑信号进行选通控制，并输出控制所述N个开关电容的开或关的控制信号。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN201880092818.7A 2018-04-28 2018-04-28 一种锁相环 Pending CN112042124A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/085208 WO2019205177A1 (zh) 2018-04-28 2018-04-28 一种锁相环

Publications (1)

Publication Number Publication Date
CN112042124A true CN112042124A (zh) 2020-12-04

Family

ID=68294741

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201880092818.7A Pending CN112042124A (zh) 2018-04-28 2018-04-28 一种锁相环

Country Status (4)

Country Link
US (1) US20210044298A1 (zh)
EP (1) EP3780395A4 (zh)
CN (1) CN112042124A (zh)
WO (1) WO2019205177A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117811580B (zh) * 2024-02-26 2024-04-26 成都电科星拓科技有限公司 设置全数字锁相环中捕获电容阵列控制字初值的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101686053A (zh) * 2009-07-21 2010-03-31 清华大学 采用键合线作为振荡器电感的频率自校正锁相环
CN102522984A (zh) * 2011-12-31 2012-06-27 杭州士兰微电子股份有限公司 锁相环及其压控振荡电路
CN102522985A (zh) * 2011-12-31 2012-06-27 杭州士兰微电子股份有限公司 锁相环及其压控振荡器
CN104052474A (zh) * 2014-06-03 2014-09-17 华为技术有限公司 一种锁相环频率校正方法及系统
CN106209087A (zh) * 2016-06-28 2016-12-07 上海晶曦微电子科技有限公司 锁相环路中压控振荡器的校准系统及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134640B4 (de) * 2001-07-17 2005-07-14 Texas Instruments Deutschland Gmbh PLL-Schaltung und Verfahren zur automatischen Einstellung ihrer Ausgangsfrequenz
JP2004120353A (ja) * 2002-09-26 2004-04-15 Seiko Epson Corp 電圧制御型発振器、その電圧制御型発振器を用いたクロック変換器およびこのクロック変換器を用いた電子機器
CN101262225B (zh) * 2008-04-11 2011-02-16 湖南大学 锁相环频率合成器
JP5147539B2 (ja) * 2008-05-22 2013-02-20 ルネサスエレクトロニクス株式会社 周波数シンセサイザおよびその制御方法
US8140040B1 (en) * 2009-09-11 2012-03-20 Qualcomm Atheros, Inc Method and apparatus for a temperature compensated phase locked loop supporting a continuous stream receiver in an integrated circuit
WO2011149657A1 (en) * 2010-05-28 2011-12-01 Marvell World Trade Ltd. Method and apparatus for drift compensation in pll
US8531245B2 (en) * 2011-10-28 2013-09-10 St-Ericsson Sa Temperature compensation in a PLL
US9325332B2 (en) * 2014-08-27 2016-04-26 International Business Machines Corporation Adjusting the magnitude of a capacitance of a digitally controlled circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101686053A (zh) * 2009-07-21 2010-03-31 清华大学 采用键合线作为振荡器电感的频率自校正锁相环
CN102522984A (zh) * 2011-12-31 2012-06-27 杭州士兰微电子股份有限公司 锁相环及其压控振荡电路
CN102522985A (zh) * 2011-12-31 2012-06-27 杭州士兰微电子股份有限公司 锁相环及其压控振荡器
CN104052474A (zh) * 2014-06-03 2014-09-17 华为技术有限公司 一种锁相环频率校正方法及系统
CN106209087A (zh) * 2016-06-28 2016-12-07 上海晶曦微电子科技有限公司 锁相环路中压控振荡器的校准系统及方法

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Publication number Publication date
EP3780395A4 (en) 2021-04-21
US20210044298A1 (en) 2021-02-11
WO2019205177A1 (zh) 2019-10-31
EP3780395A1 (en) 2021-02-17

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