ES2179186T3 - Sintetizador de frecuencia pll accionado por un sintetizador digital directo con limpieza pll. - Google Patents

Sintetizador de frecuencia pll accionado por un sintetizador digital directo con limpieza pll.

Info

Publication number
ES2179186T3
ES2179186T3 ES96909524T ES96909524T ES2179186T3 ES 2179186 T3 ES2179186 T3 ES 2179186T3 ES 96909524 T ES96909524 T ES 96909524T ES 96909524 T ES96909524 T ES 96909524T ES 2179186 T3 ES2179186 T3 ES 2179186T3
Authority
ES
Spain
Prior art keywords
pll
cleaning
idea
dds
synthesizer
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 - Lifetime
Application number
ES96909524T
Other languages
English (en)
Inventor
Robert P Gilmore
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ES2179186T3 publication Critical patent/ES2179186T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03L7/22—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
    • 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
    • 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
    • H03L7/1806—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 the frequency divider comprising a phase accumulator generating the frequency divided signal

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

UN SINTETIZADOR DE FRECUENCIA (200) QUE USA UN SINTETIZADOR DIGITAL DIRECTO (DDS) (204) PARA GENERAR UNA SEÑAL PERIODICA DE GRAN EXACTITUD. LA SEÑAL DE SALIDA DEL DDS (204) SE FILTRA MEDIANTE PASA-BANDA UTILIZANDO UN BUCLE DE BLOQUEO DE FASE DE LIMPIEZA (PLL) (214) PARA PRODUCIR UNA SEÑAL DE REFERENCIA ESPECTRALMENTE PURA Y PROMOVER UN TIEMPO DE ESTABLECIMIENTO RAPIDO GLOBAL. UN BUCLE DE BLOQUEO DE FASE SECUNDARIO O PRIMARIO (220), CON UN TIEMPO DE ESTABLECIMIENTO MUCHO MAS RAPIDO QUE EL PRIMER PLL (214), AJUSTA LA FRECUENCIA DE LA SEÑAL DE REFERENCIA GENERADA POR EL PLL DE LIMPIEZA (214). EN UNA MATERIALIZACION DE LA IDEA, EL SINTETIZADOR DE FRECUENCIA DDS (204) TIENE UN CONVERSOR DIGITAL-A-ANALOGICO (DAC) (206) ACOPLADO AL PLL DE LIMPIEZA (214). OTRA MATERIALIZACION DE LA IDEA (300) ALIMENTA CON EL BIT MAS SIGNIFICATIVO (MSB) (310) O CON EL BIT DE DESBORDAMIENTO DEL ACUMULADOR DAC (306) EL PLL (318) DE "LIMPIEZA". SIN EMBARGO, OTRA MATERIALIZACION DE LA IDEA (400) USA UN APARATO DE CONMUTACION PARA EVITAR EL PLL DE "LIMPIEZA" (410) MIENTRAS SE ESTA ESTABLECIENDO EN UNA NUEVA FRECUENCIA.
ES96909524T 1995-03-16 1996-03-08 Sintetizador de frecuencia pll accionado por un sintetizador digital directo con limpieza pll. Expired - Lifetime ES2179186T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40752195A 1995-03-16 1995-03-16

Publications (1)

Publication Number Publication Date
ES2179186T3 true ES2179186T3 (es) 2003-01-16

Family

ID=23612420

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96909524T Expired - Lifetime ES2179186T3 (es) 1995-03-16 1996-03-08 Sintetizador de frecuencia pll accionado por un sintetizador digital directo con limpieza pll.

Country Status (17)

Country Link
US (1) US5757239A (es)
EP (1) EP0815648B1 (es)
KR (1) KR100352681B1 (es)
CN (1) CN1098563C (es)
AT (1) ATE219612T1 (es)
AU (1) AU711590B2 (es)
BR (1) BR9607869A (es)
CA (1) CA2215376C (es)
DE (1) DE69621919T2 (es)
DK (1) DK0815648T3 (es)
ES (1) ES2179186T3 (es)
FI (1) FI115936B (es)
HK (1) HK1007916A1 (es)
MX (1) MX9706979A (es)
PT (1) PT815648E (es)
RU (1) RU2176431C2 (es)
WO (1) WO1996028890A1 (es)

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US7324789B2 (en) * 2005-01-20 2008-01-29 Broadcom Corporation PLL frequency synthesizer architecture for low phase noise and reference spurs
US9225350B1 (en) * 2005-11-30 2015-12-29 Keysight Technologies, Inc. Low noise frequency source
CN100450230C (zh) * 2005-12-02 2009-01-07 华为技术有限公司 一种射频远端模块中时钟恢复方法和装置
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
US7215167B1 (en) 2006-04-28 2007-05-08 Giga-Tronics, Inc. Low noise microwave frequency synthesizer having fast switching
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US7675369B2 (en) * 2006-06-12 2010-03-09 Honeywell International Inc. Frequency hopping oscillator circuit
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CN104467836B (zh) * 2014-11-10 2017-12-08 绵阳市维博电子有限责任公司 一种时钟信号发生方法及系统
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Also Published As

Publication number Publication date
BR9607869A (pt) 1998-07-14
KR19980703044A (ko) 1998-09-05
DE69621919T2 (de) 2003-02-13
AU5298596A (en) 1996-10-02
MX9706979A (es) 1997-12-31
DK0815648T3 (da) 2002-07-15
FI973654A0 (fi) 1997-09-10
DE69621919D1 (de) 2002-07-25
US5757239A (en) 1998-05-26
FI973654A (fi) 1997-11-14
CA2215376A1 (en) 1996-09-19
HK1007916A1 (en) 1999-04-30
KR100352681B1 (ko) 2002-11-18
RU2176431C2 (ru) 2001-11-27
EP0815648A1 (en) 1998-01-07
AU711590B2 (en) 1999-10-14
WO1996028890A1 (en) 1996-09-19
ATE219612T1 (de) 2002-07-15
CA2215376C (en) 2006-07-11
FI115936B (fi) 2005-08-15
PT815648E (pt) 2002-09-30
CN1178613A (zh) 1998-04-08
CN1098563C (zh) 2003-01-08
EP0815648B1 (en) 2002-06-19

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