CA2083372C - Digital frequency synthesizer having afc and modulation applied to frequency divider - Google Patents

Digital frequency synthesizer having afc and modulation applied to frequency divider

Info

Publication number
CA2083372C
CA2083372C CA002083372A CA2083372A CA2083372C CA 2083372 C CA2083372 C CA 2083372C CA 002083372 A CA002083372 A CA 002083372A CA 2083372 A CA2083372 A CA 2083372A CA 2083372 C CA2083372 C CA 2083372C
Authority
CA
Canada
Prior art keywords
frequency
carrier signal
signal
divisor value
dividing
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
CA002083372A
Other languages
English (en)
French (fr)
Other versions
CA2083372A1 (en
Inventor
Alexander W. Hietala
Patrick J. Marry
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Inc filed Critical Motorola Inc
Publication of CA2083372A1 publication Critical patent/CA2083372A1/en
Application granted granted Critical
Publication of CA2083372C publication Critical patent/CA2083372C/en
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
    • H03C3/0916—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
    • H03C3/0916—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
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single 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
    • 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
    • H03L7/1976—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 using a phase accumulator for controlling the counter or frequency divider

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
CA002083372A 1991-05-03 1992-04-06 Digital frequency synthesizer having afc and modulation applied to frequency divider Expired - Fee Related CA2083372C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/695,120 US5111162A (en) 1991-05-03 1991-05-03 Digital frequency synthesizer having AFC and modulation applied to frequency divider
US695,120 1991-05-03

Publications (2)

Publication Number Publication Date
CA2083372A1 CA2083372A1 (en) 1992-11-04
CA2083372C true CA2083372C (en) 1998-06-16

Family

ID=24791660

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002083372A Expired - Fee Related CA2083372C (en) 1991-05-03 1992-04-06 Digital frequency synthesizer having afc and modulation applied to frequency divider

Country Status (6)

Country Link
US (1) US5111162A (US20080094685A1-20080424-C00004.png)
CA (1) CA2083372C (US20080094685A1-20080424-C00004.png)
DE (2) DE4291263T1 (US20080094685A1-20080424-C00004.png)
GB (1) GB2261780B (US20080094685A1-20080424-C00004.png)
HK (1) HK1001483A1 (US20080094685A1-20080424-C00004.png)
WO (1) WO1992020144A1 (US20080094685A1-20080424-C00004.png)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89845C (fi) * 1991-09-04 1993-11-25 Nokia Mobile Phones Ltd Koppling foer alstring av saendningssignal i en radiotelefon
JPH0614065A (ja) * 1992-06-26 1994-01-21 Nec Corp 多値ｆｓｋ変調器
US5331293A (en) * 1992-09-02 1994-07-19 Motorola, Inc. Compensated digital frequency synthesizer
US5392460A (en) * 1993-04-23 1995-02-21 Nokia Mobile Phones Ltd. Dual mode radiotelephone terminal selectively operable for frequency modulated or phase modulated operation
US5337024A (en) * 1993-06-22 1994-08-09 Rockwell International Corporation Phase locked loop frequency modulator using fractional division
US5493700A (en) * 1993-10-29 1996-02-20 Motorola Automatic frequency control apparatus
US5430416A (en) * 1994-02-23 1995-07-04 Motorola Power amplifier having nested amplitude modulation controller and phase modulation controller
JPH07245633A (ja) * 1994-03-04 1995-09-19 Toshiba Corp デジタルデータ受信装置
US5535432A (en) * 1994-09-14 1996-07-09 Ericsson Ge Mobile Communications Inc. Dual-mode satellite/cellular phone with a frequency synthesizer
JP2929965B2 (ja) * 1995-03-31 1999-08-03 日本電気株式会社 無線通信端局
US5761615A (en) * 1995-05-31 1998-06-02 Motorola, Inc. Wide band zero if quadrature demodulator using a intermediate frequency and a single local oscillator
FR2734972B1 (fr) * 1995-05-31 1997-08-01 Matra Communication Dispositif d'emission radio a modulation de frequence
US5521534A (en) * 1995-06-21 1996-05-28 Dsc Communications Corporation Numerically controlled oscillator for generating a digitally represented sine wave output signal
EP0788237A4 (en) * 1995-08-03 1998-11-25 Anritsu Corp RATIONAL FREQUENCY DIVIDER AND FREQUENCY SYNTHESIZER EMPLOYING THIS FREQUENCY DIVIDER
US5684795A (en) * 1996-01-30 1997-11-04 Motorola, Inc. Method and apparatus for controlling a fractional-N synthesizer in a time division multiple access system
US5745848A (en) * 1996-03-04 1998-04-28 Motorola, Inc. Method and apparatus for eliminating interference caused by spurious signals in a communication device
GB2313001B (en) * 1996-05-07 2000-11-01 Nokia Mobile Phones Ltd Frequency modulation using a phase-locked loop
US5960364A (en) * 1996-11-08 1999-09-28 Ericsson Inc. Satellite/cellular phone using different channel spacings on forward and return links
US5995548A (en) * 1996-11-15 1999-11-30 3Com Corporation Signaling method using multiple modulus shell mapping
KR100255364B1 (ko) * 1997-01-15 2000-05-01 윤종용 저주파신호 감쇄특성의 억제를 위한 무선수신기 및 그 억제방법
WO1998039884A2 (en) * 1997-03-03 1998-09-11 Motorola Inc. Technique for clock shifting in an integrated transceiver
US6084883A (en) * 1997-07-07 2000-07-04 3Com Corporation Efficient data transmission over digital telephone networks using multiple modulus conversion
US6084915A (en) * 1997-03-03 2000-07-04 3Com Corporation Signaling method having mixed-base shell map indices
US5834987A (en) * 1997-07-30 1998-11-10 Ercisson Inc. Frequency synthesizer systems and methods for three-point modulation with a DC response
SE510523C2 (sv) 1997-09-11 1999-05-31 Ericsson Telefon Ab L M Radiokommunikationsenhet och radiotelefon innefattande radiokommunikationsenhet
US6011815A (en) * 1997-09-16 2000-01-04 Telefonaktiebolaget Lm Ericsson Compensated ΔΣ controlled phase locked loop modulator
US6163710A (en) * 1997-10-20 2000-12-19 Ericsson, Inc. Method and apparatus for compliance to multiple frequency plans
GB2335322B (en) * 1998-03-13 2002-04-24 Ericsson Telefon Ab L M Phase detector
US6157271A (en) * 1998-11-23 2000-12-05 Motorola, Inc. Rapid tuning, low distortion digital direct modulation phase locked loop and method therefor
DE19913110C1 (de) * 1999-03-23 2000-11-16 Siemens Ag Frequenzsynthesizer
JP4206558B2 (ja) * 1999-04-26 2009-01-14 横河電機株式会社 位相変動発生回路、及び位相変動発生方法
US6515526B2 (en) 1999-04-26 2003-02-04 Ando Electric Co., Ltd. Phase fluctuation generation
US6661852B1 (en) 1999-07-21 2003-12-09 Raytheon Company Apparatus and method for quadrature tuner error correction
FR2796792B1 (fr) * 1999-07-22 2001-10-12 Cit Alcatel Dispositif d'emission radioelectrique
US6640237B1 (en) 1999-07-27 2003-10-28 Raytheon Company Method and system for generating a trigonometric function
US6298093B1 (en) * 1999-08-05 2001-10-02 Raytheon Company Apparatus and method for phase and frequency digital modulation
EP1111793B1 (en) * 1999-12-13 2003-11-05 Matsushita Electric Industrial Co., Ltd. Frequency synthesizer apparatus equipped with delta-sigma modulator in fraction part control circuit
US6529716B1 (en) 2000-01-11 2003-03-04 Skyworks Solutions, Inc. RF transmitter with extended efficient power control range
US6681101B1 (en) 2000-01-11 2004-01-20 Skyworks Solutions, Inc. RF transmitter with extended efficient power control range
US6278333B1 (en) 2000-02-29 2001-08-21 Motorola, Inc. Phase lock loop with dual state charge pump and method of operating the same
US6564039B1 (en) 2000-02-29 2003-05-13 Motorola, Inc. Frequency generation circuit and method of operating a tranceiver
US6747987B1 (en) 2000-02-29 2004-06-08 Motorola, Inc. Transmit modulation circuit and method of operating a transmitter
US6647075B1 (en) 2000-03-17 2003-11-11 Raytheon Company Digital tuner with optimized clock frequency and integrated parallel CIC filter and local oscillator
US6590948B1 (en) 2000-03-17 2003-07-08 Raytheon Company Parallel asynchronous sample rate reducer
US6405022B1 (en) 2000-05-17 2002-06-11 Intersil Americas Inc. Apparatus for radio frequency processing with single oscillator for intermediate frequency processing
US6678503B1 (en) * 2000-05-17 2004-01-13 Intersil Americas Inc. Apparatus for radio frequency processing with dual modulus synthesizer
EP1168634B1 (fr) * 2000-06-28 2007-06-13 STMicroelectronics N.V. Procédé de réduction de la consommation électrique d'un téléphone mobile cellulaire
US6693468B2 (en) 2001-06-12 2004-02-17 Rf Micro Devices, Inc. Fractional-N synthesizer with improved noise performance
US7003049B2 (en) * 2001-06-12 2006-02-21 Rf Micro Devices, Inc. Fractional-N digital modulation with analog IQ interface
US6448831B1 (en) 2001-06-12 2002-09-10 Rf Micro Devices, Inc. True single-phase flip-flop
US6385276B1 (en) 2001-06-12 2002-05-07 Rf Micro Devices, Inc. Dual-modulus prescaler
US6779010B2 (en) 2001-06-12 2004-08-17 Rf Micro Devices, Inc. Accumulator with programmable full-scale range
US7116951B2 (en) * 2003-12-16 2006-10-03 Motorola, Inc. Transmitter circuit and method for modulation distortion compensation
ATE365397T1 (de) * 2004-01-30 2007-07-15 Freescale Semiconductor Inc Doppelzugriffsmodulator mit einem frequenzsynthetisierer
US7840189B2 (en) * 2004-12-15 2010-11-23 Freescale Semiconductor, Inc. Frequency generation in a wireless communication unit
US7493093B2 (en) 2005-04-27 2009-02-17 Skyworks Solutions, Inc. Switchable power level detector for multi-mode communication device
US7482885B2 (en) * 2005-12-29 2009-01-27 Orca Systems, Inc. Method of frequency synthesis for fast switching
US7519349B2 (en) * 2006-02-17 2009-04-14 Orca Systems, Inc. Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
EP1919103B8 (en) * 2006-11-02 2016-11-30 Google Technology Holdings LLC Method and apparatus for automatic frequency correction in a multimode device
US7535311B2 (en) * 2006-11-30 2009-05-19 Infineon Technologies Ag Direct wideband modulation of a frequency synthesizer
US7696826B2 (en) * 2006-12-04 2010-04-13 Skyworks Solutions, Inc. Temperature compensation of collector-voltage control RF amplifiers
US7729674B2 (en) * 2007-01-09 2010-06-01 Skyworks Solutions, Inc. Multiband or multimode receiver with shared bias circuit
DE102007042979B4 (de) 2007-09-10 2017-07-20 Intel Deutschland Gmbh Integrierte Schaltung für Mobilfunk-Sendeempfänger
US8923778B2 (en) 2012-08-20 2014-12-30 Google Technology Holdings LLC Method for automatic frequency correction in a multi-carrier communications device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528521A (en) * 1984-02-09 1985-07-09 At&T Information Systems Inc. Precision control frequency synthesizer having an unstable, variable frequency input signal
JPS62502230A (ja) * 1985-02-21 1987-08-27 シーメンス　プレッシー　エレクトロニック　システムズ　リミテッド 周波数合成器またはそれに関する改良
US4810977A (en) * 1987-12-22 1989-03-07 Hewlett-Packard Company Frequency modulation in phase-locked loops
US4816774A (en) * 1988-06-03 1989-03-28 Motorola, Inc. Frequency synthesizer with spur compensation
US4887050A (en) * 1989-03-31 1989-12-12 Motorola, Inc. Frequency control apparatus and method for a digital radio receiver
US5055802A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Multiaccumulator sigma-delta fractional-n synthesis
US5055800A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Fractional n/m synthesis
US5070310A (en) * 1990-08-31 1991-12-03 Motorola, Inc. Multiple latched accumulator fractional N synthesis
US5093632A (en) * 1990-08-31 1992-03-03 Motorola, Inc. Latched accumulator fractional n synthesis with residual error reduction

Also Published As

Publication number Publication date
GB2261780A (en) 1993-05-26
HK1001483A1 (en) 1998-06-19
US5111162A (en) 1992-05-05
DE4291263T1 (US20080094685A1-20080424-C00004.png) 1993-06-03
WO1992020144A1 (en) 1992-11-12
GB2261780B (en) 1995-06-28
DE4291263C2 (de) 1996-11-21
CA2083372A1 (en) 1992-11-04
GB9225942D0 (en) 1993-02-24

Similar Documents

Publication Publication Date Title
CA2083372C (en) Digital frequency synthesizer having afc and modulation applied to frequency divider
CA2281522C (en) Delta-sigma based two-point angle modulation scheme
JP2650492B2 (ja) 変調スプリアス補償を有する分数ｎシンセサイザ
US6975687B2 (en) Linearized offset QPSK modulation utilizing a sigma-delta based frequency modulator
US5903194A (en) Digital phase modulation of frequency synthesizer using modulated fractional division
US6252464B1 (en) Numerically-controlled nyquist-boundary hopping frequency synthesizer
US6198353B1 (en) Phase locked loop having direct digital synthesizer dividers and improved phase detector
CA2048645C (en) Multiaccumulator sigma-delta fractional-n synthesis
US5065408A (en) Fractional-division synthesizer for a voice/data communications systems
US6211747B1 (en) Wideband modulated fractional-N frequency synthesizer
EP0408238B1 (en) A frequency synthesiser
AU746796B2 (en) A post-filtered delta sigma for controlling a phase locked loop modulator
US5329253A (en) Frequency synthesis using frequency controlled carrier modulated with PLL feedback signal
KR0166656B1 (ko) 자동 주파수 제어 장치
US6650721B1 (en) Phase locked loop with numerically controlled oscillator divider in feedback loop
US6011815A (en) Compensated ΔΣ controlled phase locked loop modulator
JP2001502496A (ja) ディジタルまたはアナログ変調用２モード無線電話装置
JPH0777388B2 (ja) 偏移制御を有するデ−タ周波数変調器
WO2003026133A1 (en) Accumulator based phase locked loop
JP2806059B2 (ja) 位相同期ループシンセサイザ
US7502435B2 (en) Two-point modulator arrangement and use thereof in a transmission arrangement and in a reception arrangement
US5857003A (en) Digital radio having improved modulation and detection processes
US7313379B2 (en) Generation of a self-correcting local oscillation
JP2002185320A (ja) 周波数シンセサイザおよび低雑音周波数合成方法
US4878035A (en) Hybrid frequency shift keying modulator and method

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed