ATE163110T1 - Frequenzmodulierter synthesierer mit niederfrequentem offset-gemischtem vco - Google Patents

Frequenzmodulierter synthesierer mit niederfrequentem offset-gemischtem vco

Info

Publication number
ATE163110T1
ATE163110T1 AT91917054T AT91917054T ATE163110T1 AT E163110 T1 ATE163110 T1 AT E163110T1 AT 91917054 T AT91917054 T AT 91917054T AT 91917054 T AT91917054 T AT 91917054T AT E163110 T1 ATE163110 T1 AT E163110T1
Authority
AT
Austria
Prior art keywords
vco
mixer
frequency
synthesizer
offset
Prior art date
Application number
AT91917054T
Other languages
English (en)
Inventor
Joseph P Heck
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
Application granted granted Critical
Publication of ATE163110T1 publication Critical patent/ATE163110T1/de

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
    • H03C3/0983—Modifications of modulator for regulating the mean frequency using a phase locked loop containing in the loop a mixer other than for phase detection
    • 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

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transmitters (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
AT91917054T 1990-08-29 1991-08-16 Frequenzmodulierter synthesierer mit niederfrequentem offset-gemischtem vco ATE163110T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/574,626 US5079526A (en) 1990-08-29 1990-08-29 Frequency modulated synthesizer using low frequency offset mixed VCO

Publications (1)

Publication Number Publication Date
ATE163110T1 true ATE163110T1 (de) 1998-02-15

Family

ID=24296929

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91917054T ATE163110T1 (de) 1990-08-29 1991-08-16 Frequenzmodulierter synthesierer mit niederfrequentem offset-gemischtem vco

Country Status (7)

Country Link
US (1) US5079526A (de)
EP (1) EP0546088B1 (de)
JP (1) JPH06500443A (de)
AT (1) ATE163110T1 (de)
CA (1) CA2087719C (de)
DE (1) DE69128886T2 (de)
WO (1) WO1992004765A2 (de)

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Publication number Priority date Publication date Assignee Title
JPH05207326A (ja) * 1992-01-28 1993-08-13 Matsushita Electric Ind Co Ltd 水平圧縮ｐｌｌ回路
JP2820181B2 (ja) 1992-07-23 1998-11-05 三菱電機株式会社 周波数シンセサイザ
KR0129462B1 (ko) * 1992-08-06 1998-04-08 존 에이취. 무어 결합된 위상 동기루프와 자동주파수 제어루프를 구비한 무선전화기 및 그의 동작방법
US5313173A (en) * 1993-04-26 1994-05-17 Ericsson Ge Mobile Communications Inc. Quadrature modulated phase-locked loop
US5550865A (en) * 1993-05-05 1996-08-27 National Semiconductor Corporation Frequency modulator for data transceiver
DE69428153T2 (de) * 1993-05-19 2002-06-06 Koninklijke Philips Electronics N.V., Eindhoven Bittaktrückgewinnung für CPFSK-Signale
US5511236A (en) * 1993-12-07 1996-04-23 National Semiconductor Corporation Half duplex RF transceiver
US5584062A (en) * 1994-01-24 1996-12-10 Motorola, Inc. Method and apparatus for compensating phase locked receivers
WO1997016012A1 (en) * 1995-10-23 1997-05-01 Momentum Microsystems, Inc. Broadband, low power fm/fsk transceiver for wireless communications systems
US5737694A (en) * 1995-11-30 1998-04-07 Scientific-Atlanta, Inc. Highly stable frequency synthesizer loop with feedforward
GB2320629B (en) * 1996-12-23 2001-04-25 Nokia Mobile Phones Ltd A radio transmitter and phase locked loop therefor
US6633550B1 (en) 1997-02-20 2003-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Radio transceiver on a chip
US5894592A (en) * 1997-04-17 1999-04-13 Motorala, Inc. Wideband frequency synthesizer for direct conversion transceiver
US6157260A (en) * 1999-03-02 2000-12-05 Motorola, Inc. Method and apparatus for calibrating a local oscillator in a direct conversion receiver
US6114980A (en) 1999-04-13 2000-09-05 Motorola, Inc. Method and apparatus for settling a DC offset
US6459889B1 (en) 2000-02-29 2002-10-01 Motorola, Inc. DC offset correction loop for radio receiver
US6317064B1 (en) 2000-02-29 2001-11-13 Motorola, Inc. DC offset correction adaptable to multiple requirements
US6356217B1 (en) 2000-02-29 2002-03-12 Motorola, Inc. Enhanced DC offset correction through bandwidth and clock speed selection
US6418303B1 (en) 2000-02-29 2002-07-09 Motorola, Inc. Fast attack automatic gain control (AGC) loop and methodology for narrow band receivers
US6268780B1 (en) 2000-04-26 2001-07-31 National Semiconductor Corporation Frequency synthesizer with digital frequency lock loop
US6654594B1 (en) 2000-05-30 2003-11-25 Motorola, Inc. Digitized automatic gain control system and methods for a controlled gain receiver
FI113424B (fi) * 2000-12-22 2004-04-15 Nokia Corp Järjestelmä ja menetelmä suoramuunnosvastaanotinta varten, erityisesti GPS-vastaanotinjärjestelmä, jossa on ylipäästösuodatus
DE10142019A1 (de) * 2001-08-28 2003-03-20 Philips Corp Intellectual Pty Schaltungsanordnung zur Demodulation von Signalen
DE10223396B4 (de) * 2002-05-25 2005-08-04 Diehl Ako Stiftung & Co. Kg Eingangsschaltung für einen HF-Sendebaustein
DE10253719B4 (de) * 2002-11-19 2008-04-24 Newlogic Technologies Gmbh Phase Locked Loop mit digital gesteuerter Frequenzfeinabstimmung
US7580691B1 (en) * 2005-08-02 2009-08-25 Rf Micro Devices, Inc. System and method for reducing self interference
RU2320076C1 (ru) * 2007-03-02 2008-03-20 Андрей Витальевич Паргачёв Способ формирования модулированного радиосигнала, не содержащего боковых спектров и гармоник

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131861A (en) * 1977-12-30 1978-12-26 International Business Machines Corporation Variable frequency oscillator system including two matched oscillators controlled by a phase locked loop
JPS5854708A (ja) * 1981-09-28 1983-03-31 Nec Corp 無線送信機
JPS58143631A (ja) * 1982-02-19 1983-08-26 Sony Corp Ｐｌｌシンセサイザ回路
US4540958A (en) * 1983-09-30 1985-09-10 International Telephone And Telegraph Corporation Zero if frequency-modulator
FR2554656B1 (fr) * 1983-11-04 1986-06-27 Lgt Lab Gen Telecomm Emetteur a modulation de frequence applicable a la radiodiffusion fm
GB2183946A (en) * 1985-12-06 1987-06-10 Plessey Co Plc Frequency synthesiser
US4837853A (en) * 1987-06-05 1989-06-06 Motorola, Inc. Dual port FM demodulation in phase locked receivers
JPH0242818A (ja) * 1988-08-02 1990-02-13 Fujitsu General Ltd 安定化電圧制御発振器
US4882549A (en) * 1988-11-16 1989-11-21 Zvi Galani Center offset microwave frequency synthesizer
US4912432A (en) * 1989-04-17 1990-03-27 Raytheon Company Plural feedback loop digital frequency synthesizer

Also Published As

Publication number Publication date
WO1992004765A3 (en) 1992-04-16
WO1992004765A2 (en) 1992-03-19
EP0546088A4 (en) 1993-09-29
JPH06500443A (ja) 1994-01-13
DE69128886T2 (de) 1998-09-10
EP0546088A1 (de) 1993-06-16
US5079526A (en) 1992-01-07
DE69128886D1 (de) 1998-03-12
EP0546088B1 (de) 1998-02-04
CA2087719C (en) 1995-04-11
CA2087719A1 (en) 1992-03-01

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Legal Events

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