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WO2007030189A3 - Rf synthesizer and rf transmitter or receiver incorporating the synthesizer - Google Patents

Rf synthesizer and rf transmitter or receiver incorporating the synthesizer Download PDF

Info

Publication number
WO2007030189A3
WO2007030189A3 PCT/US2006/025664 US2006025664W WO2007030189A3 WO 2007030189 A3 WO2007030189 A3 WO 2007030189A3 US 2006025664 W US2006025664 W US 2006025664W WO 2007030189 A3 WO2007030189 A3 WO 2007030189A3
Authority
WO
WIPO (PCT)
Prior art keywords
synthesizer
vco
output signal
frequency
transmitter
Prior art date
Application number
PCT/US2006/025664
Other languages
French (fr)
Other versions
WO2007030189A2 (en
Inventor
Soren Peter Larsen
Original Assignee
Motorola Inc
Soren Peter Larsen
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, Soren Peter Larsen filed Critical Motorola Inc
Priority to EP06786008A priority Critical patent/EP1935100A4/en
Publication of WO2007030189A2 publication Critical patent/WO2007030189A2/en
Publication of WO2007030189A3 publication Critical patent/WO2007030189A3/en

Links

Classifications

    • 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
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies
    • 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
    • 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
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector 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
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
    • H03L7/235—Nested phase locked loops

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)

Abstract

An RF (radio frequency) synthesizer (200) includes a VCO (voltage controlled oscillator) (220) operable to provide an output signal at a desired frequency (FVCO) and, coupled to the VCO, a frequency divider operable to receive the output signal of the VCO and to provide an output signal which is divided in frequency relative to the output signal of the VCO, wherein the synthesizer includes an output path (250, 251) which includes the frequency divider (241), whereby the synthesizer is operable to provide an output signal at an output frequency (FVCO/Nx) of the frequency divider. The synthesizer may beneficially include an integrated circuit which incorporates at least part of the VCO. Also described is an RF transmitter or receiver, e.g. for use in a base transceiver station of a mobile communications system, which incorporates the synthesizer.
PCT/US2006/025664 2005-09-08 2006-06-30 Rf synthesizer and rf transmitter or receiver incorporating the synthesizer WO2007030189A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06786008A EP1935100A4 (en) 2005-09-08 2006-06-30 Rf synthesizer and rf transmitter or receiver incorporating the synthesizer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0518214A GB2430089B (en) 2005-09-08 2005-09-08 RF synthesizer and RF transmitter or receiver incorporating the synthesizer
GB0518214.2 2005-09-08

Publications (2)

Publication Number Publication Date
WO2007030189A2 WO2007030189A2 (en) 2007-03-15
WO2007030189A3 true WO2007030189A3 (en) 2007-07-19

Family

ID=35221020

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/025664 WO2007030189A2 (en) 2005-09-08 2006-06-30 Rf synthesizer and rf transmitter or receiver incorporating the synthesizer

Country Status (5)

Country Link
EP (1) EP1935100A4 (en)
KR (1) KR100990802B1 (en)
CN (1) CN101278486A (en)
GB (1) GB2430089B (en)
WO (1) WO2007030189A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019023881A1 (en) * 2017-07-31 2019-02-07 深圳和而泰智能控制股份有限公司 Human skin water and oil analysis circuit and skin testing instrument

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785525B2 (en) * 1999-05-21 2004-08-31 Telefonaktiebolaget L M Ericsson (Publ) Multiband frequency generation using a single PLL-circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0834589B2 (en) * 1990-03-30 1996-03-29 三菱電機株式会社 Sampling clock generator
US6711227B1 (en) * 1999-02-05 2004-03-23 Broadcom Corporation Synchronizing method and apparatus
US7426220B2 (en) * 2002-01-09 2008-09-16 L-3 Communications Corporation Method and apparatus for aligning the clock signals of transceivers in a multiple access communication system utilizing programmable, multi-tap phase-locked loops
US6642800B2 (en) * 2002-04-04 2003-11-04 Ati Technologies, Inc. Spurious-free fractional-N frequency synthesizer with multi-phase network circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785525B2 (en) * 1999-05-21 2004-08-31 Telefonaktiebolaget L M Ericsson (Publ) Multiband frequency generation using a single PLL-circuit

Also Published As

Publication number Publication date
GB2430089B (en) 2007-10-17
EP1935100A4 (en) 2012-04-18
GB2430089A (en) 2007-03-14
CN101278486A (en) 2008-10-01
GB0518214D0 (en) 2005-10-19
KR100990802B1 (en) 2010-10-29
WO2007030189A2 (en) 2007-03-15
KR20080042181A (en) 2008-05-14
EP1935100A2 (en) 2008-06-25

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