DE69829270D1 - Frequenzsynthetisierer - Google Patents

Frequenzsynthetisierer

Info

Publication number
DE69829270D1
DE69829270D1 DE69829270T DE69829270T DE69829270D1 DE 69829270 D1 DE69829270 D1 DE 69829270D1 DE 69829270 T DE69829270 T DE 69829270T DE 69829270 T DE69829270 T DE 69829270T DE 69829270 D1 DE69829270 D1 DE 69829270D1
Authority
DE
Germany
Prior art keywords
frequency synthesizer
synthesizer
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69829270T
Other languages
English (en)
Other versions
DE69829270T2 (de
Inventor
Nadim Khlat
Jacques Trichet
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.)
Freescale Semiconducteurs France SAS
Original Assignee
Motorola Semiconducteurs SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Semiconducteurs SA filed Critical Motorola Semiconducteurs SA
Publication of DE69829270D1 publication Critical patent/DE69829270D1/de
Application granted granted Critical
Publication of DE69829270T2 publication Critical patent/DE69829270T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • H03K23/667—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by switching the base during a counting cycle
    • 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
    • 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
    • H03L7/197—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
DE69829270T 1998-04-03 1998-04-03 Frequenzsynthetisierer Expired - Fee Related DE69829270T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980400805 EP0948138B1 (de) 1998-04-03 1998-04-03 Frequenzsynthetisierer

Publications (2)

Publication Number Publication Date
DE69829270D1 true DE69829270D1 (de) 2005-04-14
DE69829270T2 DE69829270T2 (de) 2005-07-28

Family

ID=8235322

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69829270T Expired - Fee Related DE69829270T2 (de) 1998-04-03 1998-04-03 Frequenzsynthetisierer

Country Status (2)

Country Link
EP (1) EP0948138B1 (de)
DE (1) DE69829270T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0003740D0 (en) * 2000-02-17 2000-04-05 Nokia Networks Oy Frequency synthesiser
US6600378B1 (en) * 2002-01-18 2003-07-29 Nokia Corporation Fractional-N frequency synthesizer with sine wave generator
US7154980B1 (en) * 2002-08-22 2006-12-26 Qualcomm Incorporated Frequency synthesizer with on-chip registers
EP2187524A1 (de) * 2008-11-14 2010-05-19 Fujitsu Microelectronics Limited Phasendetektorschaltung
EP2187522A1 (de) * 2008-11-14 2010-05-19 Fujitsu Microelectronics Limited Frequenzteilerschaltung
FR2944889A1 (fr) * 2009-04-22 2010-10-29 St Ericsson Sa St Ericsson Ltd Procede de systeme de generation de battements a partir des pulsations d'une horloge
US10965296B2 (en) * 2016-08-09 2021-03-30 Telefonaktiebolaget Lm Ericsson (Publ) Frequency synthesizer
IT201700057049A1 (it) * 2017-05-25 2018-11-25 Fondazione St Italiano Tecnologia Circuito ad anello ad aggancio di fase per sistemi di trasmissione ad elevato bit rate e consumo ridotto
CN110764439B (zh) * 2018-07-25 2022-09-06 上海英威腾工业技术有限公司 伺服驱动脉冲输出分频器及其使用方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2049245A (en) * 1979-05-09 1980-12-17 Marconi Co Ltd Frequency synthesisers
US5371480A (en) * 1992-12-04 1994-12-06 Telefonaktiebolaget L M Ericsson Step controlled signal generator

Also Published As

Publication number Publication date
EP0948138B1 (de) 2005-03-09
EP0948138A1 (de) 1999-10-06
DE69829270T2 (de) 2005-07-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee