DE69826835D1 - Frequenzsynthetisierer - Google Patents

Frequenzsynthetisierer

Info

Publication number
DE69826835D1
DE69826835D1 DE69826835T DE69826835T DE69826835D1 DE 69826835 D1 DE69826835 D1 DE 69826835D1 DE 69826835 T DE69826835 T DE 69826835T DE 69826835 T DE69826835 T DE 69826835T DE 69826835 D1 DE69826835 D1 DE 69826835D1
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 - Lifetime
Application number
DE69826835T
Other languages
English (en)
Other versions
DE69826835T2 (de
Inventor
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
Application granted granted Critical
Publication of DE69826835D1 publication Critical patent/DE69826835D1/de
Publication of DE69826835T2 publication Critical patent/DE69826835T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
    • 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
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
    • 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
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0933—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop using fractional frequency division in the feedback loop of the phase locked loop
    • 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
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point 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
    • H03L7/16—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
DE69826835T 1998-05-29 1998-05-29 Frequenzsynthetisierer Expired - Lifetime DE69826835T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98401301A EP0961412B1 (de) 1998-05-29 1998-05-29 Frequenzsynthetisierer

Publications (2)

Publication Number Publication Date
DE69826835D1 true DE69826835D1 (de) 2004-11-11
DE69826835T2 DE69826835T2 (de) 2006-02-23

Family

ID=8235386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69826835T Expired - Lifetime DE69826835T2 (de) 1998-05-29 1998-05-29 Frequenzsynthetisierer

Country Status (3)

Country Link
US (1) US6211747B1 (de)
EP (1) EP0961412B1 (de)
DE (1) DE69826835T2 (de)

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Also Published As

Publication number Publication date
DE69826835T2 (de) 2006-02-23
EP0961412A1 (de) 1999-12-01
EP0961412B1 (de) 2004-10-06
US6211747B1 (en) 2001-04-03

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