DE69026151D1 - Frequenzsynthesizer - Google Patents

Frequenzsynthesizer

Info

Publication number
DE69026151D1
DE69026151D1 DE69026151T DE69026151T DE69026151D1 DE 69026151 D1 DE69026151 D1 DE 69026151D1 DE 69026151 T DE69026151 T DE 69026151T DE 69026151 T DE69026151 T DE 69026151T DE 69026151 D1 DE69026151 D1 DE 69026151D1
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
DE69026151T
Other languages
English (en)
Other versions
DE69026151T2 (de
Inventor
David Antony Johnson
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.)
Microsemi Semiconductor Ltd
Original Assignee
Plessey Semiconductors Ltd
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
Priority claimed from GB898915719A external-priority patent/GB8915719D0/en
Application filed by Plessey Semiconductors Ltd filed Critical Plessey Semiconductors Ltd
Publication of DE69026151D1 publication Critical patent/DE69026151D1/de
Application granted granted Critical
Publication of DE69026151T2 publication Critical patent/DE69026151T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03C3/0975—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation in the phase locked loop at components other than the divider, the voltage controlled oscillator or the reference clock
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0004—Circuit elements of modulators
    • H03C2200/0029—Memory circuits, e.g. ROMs, RAMs, EPROMs, latches, shift registers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/06—Means for changing frequency deviation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
DE69026151T 1989-07-08 1990-07-03 Frequenzsynthesizer Expired - Fee Related DE69026151T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898915719A GB8915719D0 (en) 1989-07-08 1989-07-08 Wide bandwidth direct synthesiser modulation
GB8921444A GB2233844B (en) 1989-07-08 1989-09-22 A frequency synthesiser

Publications (2)

Publication Number Publication Date
DE69026151D1 true DE69026151D1 (de) 1996-05-02
DE69026151T2 DE69026151T2 (de) 1996-08-22

Family

ID=26295588

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026151T Expired - Fee Related DE69026151T2 (de) 1989-07-08 1990-07-03 Frequenzsynthesizer

Country Status (2)

Country Link
EP (1) EP0408238B1 (de)
DE (1) DE69026151T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90169C (fi) * 1991-12-31 1993-12-27 Nokia Mobile Phones Ltd Foerfarande och kopplingsarrangemang foer att alstra en modulerad signal
DE4200816A1 (de) * 1992-01-15 1993-07-22 Bosch Gmbh Robert Frequenz- und phasenmodulator fuer digitale modulatoren bzw. digitale uebertragung, insbesondere fuer funkuebertragung
US5166642A (en) * 1992-02-18 1992-11-24 Motorola, Inc. Multiple accumulator fractional N synthesis with series recombination
FR2716312B1 (fr) * 1994-02-11 1996-03-22 Thomson Csf Dispositif de modulation de phase continue par synthétiseur de fréquences à boucle à verrouillage de phase.
DE4410721B4 (de) * 1994-03-28 2004-02-19 Robert Bosch Gmbh Schaltung zur Erzeugung einer modulierten Oszillatorfrequenz
EP0718963A1 (de) * 1994-12-22 1996-06-26 AT&T Corp. Methode und Anordnung zur Breitband-Frequenzmodulation für einen PLL-Synthesizer
GB2317512B (en) * 1996-09-12 2001-01-24 Nokia Mobile Phones Ltd Frequency modulation using a phase-locked loop
FR2755556A1 (fr) * 1996-11-06 1998-05-07 Motorola Semiconducteurs Modulateur de frequence, emetteur et emetteur-recepteur incorporant ce modulateur de frequence
US6008703A (en) * 1997-01-31 1999-12-28 Massachusetts Institute Of Technology Digital compensation for wideband modulation of a phase locked loop frequency synthesizer
US5966055A (en) * 1997-02-14 1999-10-12 Lucent Technologies, Inc. Phase-shift modulation of a direct antenna-driving VCO
DE19929167A1 (de) * 1999-06-25 2000-12-28 Siemens Ag Modulator und Verfahren zur Phasen- oder Frequenzmodulation mit einer PLL-Schaltung
FR2796792B1 (fr) * 1999-07-22 2001-10-12 Cit Alcatel Dispositif d'emission radioelectrique
DE60018177T2 (de) * 2000-08-04 2005-06-30 Freescale Semiconductor, Inc., Austin Frequenzmodulator unter Verwendung eines digitalen Filters zur Wellenformung beim Basisband
DE10104775A1 (de) 2001-02-02 2002-08-29 Infineon Technologies Ag Abgleichverfahren für einen Transceiver mit Zwei-Punkt-Modulation
US6734749B2 (en) 2001-05-29 2004-05-11 Telefonaktiebolaget Lm Ericsson (Publ) Direct modulated phase-locked loop
DE10127612A1 (de) * 2001-06-07 2003-01-02 Infineon Technologies Ag Zwei-Punkt-Modulator mit PLL-Schaltung und vereinfachter digitaler Vorfilterung
JP4369422B2 (ja) 2002-09-06 2009-11-18 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ２点位相変調器のトリミング
US6700447B1 (en) 2002-09-06 2004-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Trimming of a two point phase modulator
JP4629310B2 (ja) * 2003-01-29 2011-02-09 ルネサスエレクトロニクス株式会社 位相同期回路
US7002417B2 (en) 2003-03-21 2006-02-21 Nokia Corporation RC and SC filter compensation in a radio transceiver
JP3934585B2 (ja) * 2003-08-22 2007-06-20 松下電器産業株式会社 広帯域変調ｐｌｌ、広帯域変調ｐｌｌのタイミング誤差補正システム、変調タイミング誤差補正方法および広帯域変調ｐｌｌを備えた無線通信装置の調整方法
US7868672B2 (en) 2008-12-09 2011-01-11 Qualcomm Incorporated Digital phase-locked loop with two-point modulation and adaptive delay matching

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052672A (en) * 1976-07-22 1977-10-04 Motorola, Inc. Extended phase-range, high fidelity modulator arrangement
US4068198A (en) * 1976-12-23 1978-01-10 Gte Sylvania Incorporated Phase-locked loop frequency shift key modulator
DE2914814A1 (de) * 1979-04-11 1980-10-30 Siemens Ag Frequenzmodulator
US4242649A (en) * 1979-07-13 1980-12-30 Harris Corporation Method and apparatus for modulating a phase locked loop
FR2511564A1 (fr) * 1981-08-17 1983-02-18 Thomson Csf Synthetiseur de frequences a division fractionnaire, utilise pour une modulation angulaire numerique
GB2140234B (en) * 1983-05-17 1986-07-23 Marconi Instruments Ltd Signal generators
US4581749A (en) * 1984-07-02 1986-04-08 Motorola, Inc. Data frequency modulator with deviation control
US4810977A (en) * 1987-12-22 1989-03-07 Hewlett-Packard Company Frequency modulation in phase-locked loops
GB2214012B (en) * 1987-12-23 1992-01-22 Marconi Instruments Ltd Frequency or phase modulation

Also Published As

Publication number Publication date
EP0408238B1 (de) 1996-03-27
EP0408238A2 (de) 1991-01-16
EP0408238A3 (en) 1991-03-27
DE69026151T2 (de) 1996-08-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITEL SEMICONDUCTOR LTD., SWINDON, WILTSHIRE, GB

8339 Ceased/non-payment of the annual fee