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EE200000134A - Järelfiltreeritud *E faasilukustusahelaga modulaatori juhtimiseks - Google Patents

Järelfiltreeritud *E faasilukustusahelaga modulaatori juhtimiseks

Info

Publication number
EE200000134A
EE200000134A EEP200000134A EEP200000134A EE200000134A EE 200000134 A EE200000134 A EE 200000134A EE P200000134 A EEP200000134 A EE P200000134A EE P200000134 A EEP200000134 A EE P200000134A EE 200000134 A EE200000134 A EE 200000134A
Authority
EE
Estonia
Prior art keywords
modulator
filtered
post
controlling
phase lock
Prior art date
Application number
EEP200000134A
Other languages
English (en)
Estonian (et)
Inventor
Wilkinson Dent Paul
Berthold Gustafsson Kjell
Bengt Eriksson H�kan
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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 Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of EE200000134A publication Critical patent/EE200000134A/xx

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
EEP200000134A 1997-09-16 1998-09-11 Järelfiltreeritud *E faasilukustusahelaga modulaatori juhtimiseks EE200000134A (et)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/931,430 US6047029A (en) 1997-09-16 1997-09-16 Post-filtered delta sigma for controlling a phase locked loop modulator
PCT/SE1998/001623 WO1999014859A1 (en) 1997-09-16 1998-09-11 A post-filtered δς for controlling a phase locked loop m odulator

Publications (1)

Publication Number Publication Date
EE200000134A true EE200000134A (et) 2001-02-15

Family

ID=25460777

Family Applications (1)

Application Number Title Priority Date Filing Date
EEP200000134A EE200000134A (et) 1997-09-16 1998-09-11 Järelfiltreeritud *E faasilukustusahelaga modulaatori juhtimiseks

Country Status (10)

Country Link
US (1) US6047029A (xx)
EP (1) EP1048110B1 (xx)
JP (1) JP4246380B2 (xx)
KR (1) KR100532899B1 (xx)
CN (1) CN1278970A (xx)
AU (1) AU746796B2 (xx)
BR (1) BR9812224A (xx)
EE (1) EE200000134A (xx)
MY (1) MY116771A (xx)
WO (1) WO1999014859A1 (xx)

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CA2294404C (en) * 2000-01-07 2004-11-02 Tadeuse A. Kwasniewski Delta-sigma modulator for fractional-n frequency synthesis
FR2809890B1 (fr) * 2000-05-31 2002-08-16 Matra Nortel Communications Synthetiseur a modulation numerique
US6630868B2 (en) 2000-07-10 2003-10-07 Silicon Laboratories, Inc. Digitally-synthesized loop filter circuit particularly useful for a phase locked loop
DE60125299T2 (de) * 2000-09-29 2007-10-04 Koninklijke Philips Electronics N.V. Frequenzsynthesizer und Verfahren zur Frequenzsynthese mit geringem Rauschen
KR100346839B1 (ko) * 2000-10-10 2002-08-03 삼성전자 주식회사 시그마-델타 변조기를 이용한 분수-ｎ 주파수 합성 장치및 그 방법
EP1235403B1 (en) * 2001-02-22 2012-12-05 Panasonic Corporation Combined frequency and amplitude modulation
US7003049B2 (en) * 2001-06-12 2006-02-21 Rf Micro Devices, Inc. Fractional-N digital modulation with analog IQ interface
CN100342651C (zh) * 2001-08-29 2007-10-10 皇家飞利浦电子股份有限公司 改进后的具有减小的抖动的分频器和基于它的发射器
US6710951B1 (en) 2001-10-31 2004-03-23 Western Digital Technologies, Inc. Phase locked loop employing a fractional frequency synthesizer as a variable oscillator
US7095819B2 (en) * 2001-12-26 2006-08-22 Texas Instruments Incorporated Direct modulation architecture for amplitude and phase modulated signals in multi-mode signal transmission
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US7545865B2 (en) * 2002-12-03 2009-06-09 M/A-Com, Inc. Apparatus, methods and articles of manufacture for wideband signal processing
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CN100362743C (zh) * 2002-10-25 2008-01-16 Gct半导体公司 用于抑制锁相环电路中的噪声的系统和方法
KR100498463B1 (ko) * 2002-11-22 2005-07-01 삼성전자주식회사 프랙셔널-ｎ 주파수 합성기 및 이를 구성하는 시그마-델타변조기
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
US7352249B2 (en) * 2003-10-03 2008-04-01 Analog Devices, Inc. Phase-locked loop bandwidth calibration circuit and method thereof
US7912145B2 (en) * 2003-12-15 2011-03-22 Marvell World Trade Ltd. Filter for a modulator and methods thereof
KR20060128933A (ko) * 2004-01-21 2006-12-14 텔레폰악티에볼라겟엘엠에릭슨(펍) 전기통신 시스템
US7706495B2 (en) 2004-03-12 2010-04-27 Panasonic Corporation Two-point frequency modulation apparatus
DE102004025711B4 (de) * 2004-05-26 2008-12-11 Schreiner Group Gmbh & Co. Kg Etikett mit Anfasslasche und Verfahren zur Herstellung desselben
KR100666479B1 (ko) * 2004-08-30 2007-01-09 삼성전자주식회사 시그마 델타 변조기를 공유하는 수신 및 송신 채널 분수분주 위상 고정 루프를 포함한 주파수 합성기 및 그 동작방법
JP4214098B2 (ja) 2004-09-09 2009-01-28 株式会社ルネサステクノロジ シグマデルタ送信回路及びそれを用いた送受信機
US7405629B2 (en) 2005-06-30 2008-07-29 Cypress Semiconductor Corp. Frequency modulator, circuit, and method that uses multiple vector accumulation to achieve fractional-N frequency synthesis
US7912109B1 (en) 2005-06-30 2011-03-22 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with first order accumulation for frequency profile generation
US7701297B1 (en) 2005-06-30 2010-04-20 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with improved frequency shape by adjusting the length of a standard curve used for spread spectrum modulation
US7813411B1 (en) 2005-06-30 2010-10-12 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with high order accumulation for frequency profile generation
US7741918B1 (en) 2005-06-30 2010-06-22 Cypress Semiconductor Corporation System and method for an enhanced noise shaping for spread spectrum modulation
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
US7714666B2 (en) * 2006-06-15 2010-05-11 Mediatek Inc. Phase locked loop frequency synthesizer and method for modulating the same
US7535311B2 (en) * 2006-11-30 2009-05-19 Infineon Technologies Ag Direct wideband modulation of a frequency synthesizer
KR100919836B1 (ko) * 2007-11-16 2009-10-01 한국과학기술원 양자화 잡음을 감소시킨 올 디지털 피엘엘 및 이를 이용한양자화 잡음이 감소된 발진 신호 발생 방법
US8085097B2 (en) * 2008-05-06 2011-12-27 Hittite Microwave Corporation Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip
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Also Published As

Publication number Publication date
AU746796B2 (en) 2002-05-02
EP1048110B1 (en) 2003-11-26
BR9812224A (pt) 2000-07-18
KR20010024037A (ko) 2001-03-26
US6047029A (en) 2000-04-04
MY116771A (en) 2004-03-31
CN1278970A (zh) 2001-01-03
JP2001517013A (ja) 2001-10-02
AU9101898A (en) 1999-04-05
KR100532899B1 (ko) 2005-12-05
WO1999014859A1 (en) 1999-03-25
EP1048110A1 (en) 2000-11-02
JP4246380B2 (ja) 2009-04-02

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