NZ507555A - Phase lock loop frequency synthesis with extended range of fractional divisors - Google Patents

Phase lock loop frequency synthesis with extended range of fractional divisors

Info

Publication number
NZ507555A
NZ507555A NZ507555A NZ50755599A NZ507555A NZ 507555 A NZ507555 A NZ 507555A NZ 507555 A NZ507555 A NZ 507555A NZ 50755599 A NZ50755599 A NZ 50755599A NZ 507555 A NZ507555 A NZ 507555A
Authority
NZ
New Zealand
Prior art keywords
fractional
phase lock
lock loop
extended range
frequency synthesis
Prior art date
Application number
NZ507555A
Inventor
Stephen Ian Mann
Original Assignee
Tait Electronics 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
Application filed by Tait Electronics Ltd filed Critical Tait Electronics Ltd
Priority to NZ507555A priority Critical patent/NZ507555A/en
Publication of NZ507555A publication Critical patent/NZ507555A/en

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
    • 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

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A frequency synthesizer includes a phase-lock-loop with a programmable frequency divider and a controller that determines the average fractional division values for the divider. Each division value includes selected integer and fractional parts. The range of variation of the selected fractional part is not limited to {0,1}. The fractional part may be negative and may have an absolute value greater than 1.
NZ507555A 1999-04-14 1999-04-14 Phase lock loop frequency synthesis with extended range of fractional divisors NZ507555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ507555A NZ507555A (en) 1999-04-14 1999-04-14 Phase lock loop frequency synthesis with extended range of fractional divisors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ33519899A NZ335198A (en) 1999-04-14 1999-04-14 Cascaded sigma-delta modulators for fractional-N-division phase-lock-loop frequency systhesizer
NZ507555A NZ507555A (en) 1999-04-14 1999-04-14 Phase lock loop frequency synthesis with extended range of fractional divisors

Publications (1)

Publication Number Publication Date
NZ507555A true NZ507555A (en) 2002-10-25

Family

ID=19927215

Family Applications (3)

Application Number Title Priority Date Filing Date
NZ507556A NZ507556A (en) 1999-04-14 1999-04-14 Phase lock loop frequency synthesis controller includes digital modulator
NZ33519899A NZ335198A (en) 1999-04-14 1999-04-14 Cascaded sigma-delta modulators for fractional-N-division phase-lock-loop frequency systhesizer
NZ507555A NZ507555A (en) 1999-04-14 1999-04-14 Phase lock loop frequency synthesis with extended range of fractional divisors

Family Applications Before (2)

Application Number Title Priority Date Filing Date
NZ507556A NZ507556A (en) 1999-04-14 1999-04-14 Phase lock loop frequency synthesis controller includes digital modulator
NZ33519899A NZ335198A (en) 1999-04-14 1999-04-14 Cascaded sigma-delta modulators for fractional-N-division phase-lock-loop frequency systhesizer

Country Status (6)

Country Link
EP (1) EP1171954A4 (en)
CN (1) CN1347591A (en)
AU (1) AU3847500A (en)
CA (1) CA2370254A1 (en)
NZ (3) NZ507556A (en)
WO (1) WO2000062428A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2403085B (en) * 2002-03-28 2005-09-07 Kaben Res Inc Phase error cancellation circuit and method for fractional frequency dividers and circuits incorporating same
US7072633B2 (en) * 2002-05-31 2006-07-04 Broadcom Corporation Double-conversion television tuner using a Delta-Sigma Fractional-N PLL
JP2004104228A (en) * 2002-09-05 2004-04-02 Matsushita Electric Ind Co Ltd Signal processing apparatus and signal processing method, delta sigma modulation fractional frequency division pll frequency synthesizer, wireless communication apparatus, and delta sigma modulation digital/analog converter
US6928127B2 (en) * 2003-03-11 2005-08-09 Atheros Communications, Inc. Frequency synthesizer with prescaler
GB2409383B (en) 2003-12-17 2006-06-21 Wolfson Ltd Clock synchroniser
WO2005096502A1 (en) * 2004-04-02 2005-10-13 Kaben Research Inc. Multiple stage delta sigma modulators
CN1318212C (en) * 2004-07-30 2007-05-30 深圳市东方宇之光电子科技有限公司 Method and device for correcting geometric errors of images in laser phototypesetter
WO2011079471A1 (en) * 2009-12-31 2011-07-07 海能达通信股份有限公司 Method and system for optimizing fractional spurs

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107142B (en) * 1981-10-07 1984-10-10 Marconi Co Ltd Frequency synthesisers
GB2140232B (en) * 1983-05-17 1986-10-29 Marconi Instruments Ltd Frequency synthesisers
GB2228840B (en) * 1989-03-04 1993-02-10 Racal Dana Instr Ltd Frequency synthesisers
US5038117A (en) * 1990-01-23 1991-08-06 Hewlett-Packard Company Multiple-modulator fractional-N divider
US5055802A (en) * 1990-04-30 1991-10-08 Motorola, Inc. Multiaccumulator sigma-delta fractional-n synthesis
US5093632A (en) * 1990-08-31 1992-03-03 Motorola, Inc. Latched accumulator fractional n synthesis with residual error reduction
CN1241325A (en) * 1997-08-12 2000-01-12 皇家菲利浦电子有限公司 Multichannel radio device, radio communication system, and fractional division frequency synthesizer
US6219397B1 (en) * 1998-03-20 2001-04-17 Samsung Electronics Co., Ltd. Low phase noise CMOS fractional-N frequency synthesizer for wireless communications
TW451558B (en) * 1999-06-29 2001-08-21 Ind Tech Res Inst Digitally controlled oscillator circuit of digital phase lock loop
JP3415574B2 (en) * 2000-08-10 2003-06-09 Ｎｅｃエレクトロニクス株式会社 PLL circuit
EP1193879A1 (en) * 2000-09-29 2002-04-03 Koninklijke Philips Electronics N.V. Low noise frequency synthesizer with rapid response and corresponding method for frequency synthesis

Also Published As

Publication number Publication date
NZ335198A (en) 2000-11-24
AU3847500A (en) 2000-11-14
NZ507556A (en) 2002-10-25
WO2000062428A2 (en) 2000-10-19
CA2370254A1 (en) 2000-10-19
EP1171954A2 (en) 2002-01-16
CN1347591A (en) 2002-05-01
WO2000062428A3 (en) 2001-11-01
EP1171954A4 (en) 2002-10-30

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Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)
ERR Error or correction

Free format text: THE OWNER HAS BEEN CORRECTED TO 121164, TAIT LIMITED, 558 WAIRAKEI ROAD, BURNSIDE, CHRISTCHURCH 8053, NZ

Effective date: 20140528