CN110506394A - 频率产生器 - Google Patents

频率产生器 Download PDF

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Publication number
CN110506394A
CN110506394A CN201880000473.8A CN201880000473A CN110506394A CN 110506394 A CN110506394 A CN 110506394A CN 201880000473 A CN201880000473 A CN 201880000473A CN 110506394 A CN110506394 A CN 110506394A
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China
Prior art keywords
frequency
signal
phase
output
coupled
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CN201880000473.8A
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CN110506394B (zh
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黄彦颖
张镕谕
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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Publication of CN110506394A publication Critical patent/CN110506394A/zh
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    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/191—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using at least two different signals from the frequency divider or the counter for determining the time difference
    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/193—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number the frequency divider/counter comprising a commutable pre-divider, e.g. a two modulus divider
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

一种频率产生器，所述频率产生器包括三角积分调变器，用来产生除数控制信号以及相位控制信号；振荡器，用来产生振荡信号，其中所述振荡信号具有第一频率；可调式除频器，用来根据所述除数控制信号对所述振荡信号进行除频操作，以产生第一除频信号以及第二除频信号，其中所述第一除频信号以及所述第二除频信号具有第二频率；以及相位内插器，用来根据所述相位控制信号对所述第一除频信号以及所述第二除频信号进行相位内插操作，以产生输出信号，所述输出信号具有输出频率；其中，所述第一频率大于所述第二频率。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201880000473.8A 2018-03-20 2018-03-20 频率产生器 Active CN110506394B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/079632 WO2019178748A1 (zh) 2018-03-20 2018-03-20 频率产生器

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CN110506394A true CN110506394A (zh) 2019-11-26
CN110506394B CN110506394B (zh) 2023-05-05

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US (1) US11086353B2 (zh)
EP (1) EP3567727A4 (zh)
CN (1) CN110506394B (zh)
WO (1) WO2019178748A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112350694B (zh) * 2020-10-30 2022-09-06 上海兆芯集成电路有限公司 相位插值器

Citations (4)

* Cited by examiner, † Cited by third party
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US20110006936A1 (en) * 2009-07-09 2011-01-13 National Taiwan University All-digital spread spectrum clock generator
US20130076415A1 (en) * 2011-09-23 2013-03-28 Susumu Hara Pll using interpolative divider as digitally controlled oscillator
CN107455009A (zh) * 2017-07-03 2017-12-08 深圳市汇顶科技股份有限公司 音频***及耳机
CN107615226A (zh) * 2015-12-31 2018-01-19 深圳市汇顶科技股份有限公司 积分电路及电容感测电路

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US6426662B1 (en) * 2001-11-12 2002-07-30 Pericom Semiconductor Corp. Twisted-ring oscillator and delay line generating multiple phases using differential dividers and comparators to match delays
US7417510B2 (en) 2006-09-28 2008-08-26 Silicon Laboratories Inc. Direct digital interpolative synthesis
US20110031906A1 (en) * 2008-04-15 2011-02-10 Panasonic Corporation Motor driving device, integrated circuit device, motor device, and motor driving system
JP5106330B2 (ja) * 2008-09-16 2012-12-26 パナソニック株式会社 ディジタル制御発振回路、周波数シンセサイザ及び無線通信機器
US7733151B1 (en) * 2008-12-08 2010-06-08 Texas Instruments Incorporated Operating clock generation system and method for audio applications
JP2012010308A (ja) * 2010-05-24 2012-01-12 Panasonic Corp リファレンスリークの発生や位相ノイズを低減できるｐｌｌ回路
US8248175B2 (en) * 2010-12-30 2012-08-21 Silicon Laboratories Inc. Oscillator with external voltage control and interpolative divider in the output path
US8963588B2 (en) * 2011-08-22 2015-02-24 Infineon Technologies Ag Fractional frequency divider
US8653869B2 (en) * 2011-10-20 2014-02-18 Media Tek Singapore Pte. Ltd. Segmented fractional-N PLL
US8692599B2 (en) * 2012-08-22 2014-04-08 Silicon Laboratories Inc. Interpolative divider linearity enhancement techniques
US9344065B2 (en) * 2012-10-22 2016-05-17 Mediatek Inc. Frequency divider, clock generating apparatus, and method capable of calibrating frequency drift of oscillator
US8791734B1 (en) * 2013-02-13 2014-07-29 Silicon Laboratories Inc. Cascaded PLL for reducing low-frequency drift in holdover mode
US9244484B2 (en) * 2013-12-11 2016-01-26 International Business Machines Corporation Fractional-N spread spectrum state machine
US10678294B2 (en) * 2016-10-14 2020-06-09 Sound Devices, LLC Clock for recording devices
US10534025B2 (en) * 2017-06-12 2020-01-14 Qualcomm Incorporated Phase frequency detector linearization using switching supply

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Publication number Priority date Publication date Assignee Title
US20110006936A1 (en) * 2009-07-09 2011-01-13 National Taiwan University All-digital spread spectrum clock generator
US20130076415A1 (en) * 2011-09-23 2013-03-28 Susumu Hara Pll using interpolative divider as digitally controlled oscillator
CN103023495A (zh) * 2011-09-23 2013-04-03 硅谷实验室公司 将内插分频器用作数控振荡器的pll
CN107615226A (zh) * 2015-12-31 2018-01-19 深圳市汇顶科技股份有限公司 积分电路及电容感测电路
CN107455009A (zh) * 2017-07-03 2017-12-08 深圳市汇顶科技股份有限公司 音频***及耳机

Also Published As

Publication number Publication date
CN110506394B (zh) 2023-05-05
US20190294201A1 (en) 2019-09-26
WO2019178748A1 (zh) 2019-09-26
US11086353B2 (en) 2021-08-10
EP3567727A1 (en) 2019-11-13
EP3567727A4 (en) 2019-11-13

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