ES2114961T3 - Circuito sincronizador de un divisor. - Google Patents

Circuito sincronizador de un divisor.

Info

Publication number
ES2114961T3
ES2114961T3 ES93101091T ES93101091T ES2114961T3 ES 2114961 T3 ES2114961 T3 ES 2114961T3 ES 93101091 T ES93101091 T ES 93101091T ES 93101091 T ES93101091 T ES 93101091T ES 2114961 T3 ES2114961 T3 ES 2114961T3
Authority
ES
Spain
Prior art keywords
divider
frequency
phase
circuit
time
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
ES93101091T
Other languages
English (en)
Inventor
Albert E Cosand
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of ES2114961T3 publication Critical patent/ES2114961T3/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
    • H03L7/18—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
    • H03L7/199—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 with reset of the frequency divider or the counter, e.g. for assuring initial synchronisation
    • 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
    • H03L7/183—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 fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—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 fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
    • H03L7/189—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 fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop comprising a D/A converter for generating a coarse tuning voltage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/18—Temporarily disabling, deactivating or stopping the frequency counter or divider

Landscapes

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

Abstract

SE DESCRIBE UN CIRCUITO (11) DE SINCRONIZACION DIVISOR QUE SUMINISTRA UN AJUSTE MAS RAPIDO A UNA NUEVA FRECUENCIA EN UN BUCLE DE ENGANCHE DE FASE DE SINTETIZADOR (10) DE FRECUENCIA QUE UTILIZA UN DIVISOR (16) PROGRAMABLE Y UN DETECTOR (17) DE FASE. EL CIRCUITO (11) ESTA ADAPTADO PARA PARAR EL DIVISOR (17) MIENTRAS QUE SU PROGRAMA ESTA SIENDO CAMBIADO, Y PODER SER REESTABLECIDO EL DIVISOR (16) SEGUN UNA ORDEN. EL TIEMPO DE REESTABLECIMIENTO DEL DIVISOR (16) ES AJUSTADO AUTOMATICAMENTE DE MODO QUE LA SALIDA DEL DIVISOR SE ENCUENTRA EN UNA FASE CON UNA REFERENCIA DE ENTRADA AL DETECTOR (17) DE FASE. LA SALIDA DEL DETECTOR (17) DE FASE ESTA TAMBIEN BLOQUEADA DURANTE EL PERIODO DE TIEMPO QUE EL DIVISOR (16) ESTA PARADO. EL CIRCUITO (11) REDUCE EL TIEMPO REQUERIDO PARA EL SINTETIZADOR (10) DE FRECUENCIA DE BUCLE DE ENGANCHE DE FASE PARA AJUSTARLO A UNA NUEVA FRECUENCIA Y FASE CUANDO LA FRECUENCIA SE HA CAMBIADO. LA DISTRIBUCION DE TIEMPO DEL DIVISOR EN EL ARRANQUE ELIMINA LA FASE LARGA TRANSITORIA QUE PUEDE OCURRIR CUANDO EL TIEMPO DE ARRANQUE DEL DIVISOR ES ALEATORIO, ACORTANDO DE ESTE MODO EL TIEMPO QUE DEBE SER DISPONIBLE PARA LA SALIDA DEL SINTETIZADOR PARA AJUSTAR SU FASE FINAL. ESTE CIRCUITO (11) ES DE VALOR PARTICULAR EN SINTETIZADORES DE AJUSTE RAPIDO CON DISEÑO EN EL QUE UN VCO ES SINTONIZADO PREVIAMENTE CON RESPECTO A UNA APROXIMACION CERCANA A LA NUEVA FRECUENCIA DE SALIDA Y DONDE EL BUCLE ESTA CERRADO PARA CONDUCIR LA FRECUENCIA A SU EXACTO VALOR. EL CIRCUITO (11) ESTA BIEN ADAPTADO PARA SU USO EN ESPECTRO EXTENDIDO Y EN PROCESO DE MANIOBRA DE FRECUENCIA EN SISTEMAS DE RADAR, O EN SISTEMAS DE COMUNICACIONES DE ESPECTRO EXTENDIDO.
ES93101091T 1992-01-31 1993-01-25 Circuito sincronizador de un divisor. Expired - Lifetime ES2114961T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/829,183 US5304951A (en) 1992-01-31 1992-01-31 Divider synchronization circuit for phase-locked loop frequency synthesizer

Publications (1)

Publication Number Publication Date
ES2114961T3 true ES2114961T3 (es) 1998-06-16

Family

ID=25253770

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93101091T Expired - Lifetime ES2114961T3 (es) 1992-01-31 1993-01-25 Circuito sincronizador de un divisor.

Country Status (9)

Country Link
US (1) US5304951A (es)
EP (1) EP0553748B1 (es)
JP (1) JP2738488B2 (es)
CA (1) CA2084284C (es)
DE (1) DE69317685T2 (es)
ES (1) ES2114961T3 (es)
HK (1) HK1009892A1 (es)
IL (1) IL104176A (es)
NO (1) NO307948B1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1070321C (zh) * 1993-11-09 2001-08-29 摩托罗拉公司 锁相环误差抑制电路和方法
US6028814A (en) * 1998-01-07 2000-02-22 Integrated Silicon Solution, Inc. Guaranteed dynamic pulse generator
KR100566297B1 (ko) * 1999-09-01 2006-03-30 삼성전자주식회사 클럭 분주 회로
JP3818624B2 (ja) * 2000-02-23 2006-09-06 株式会社ルネサステクノロジ 無線通信システム
US6975682B2 (en) * 2001-06-12 2005-12-13 Raytheon Company Multi-bit delta-sigma analog-to-digital converter with error shaping
US7092474B2 (en) * 2001-09-18 2006-08-15 Broadcom Corporation Linear phase detector for high-speed clock and data recovery
US8179174B2 (en) 2010-06-15 2012-05-15 Mstar Semiconductor, Inc. Fast phase locking system for automatically calibrated fractional-N PLL
EP2814177B1 (en) * 2013-06-10 2015-09-23 Asahi Kasei Microdevices Corporation Phase-locked loop device with synchronization means

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932049C (de) * 1953-02-03 1955-08-22 Textile Paper Tube Co Lt Of Oa Vorrichtung zur Herstellung von Faserstoffbehaeltern oder -spulen
DE2932049A1 (de) * 1979-08-07 1981-02-12 Rohde & Schwarz Frequenz- und phasengeregelter hochfrequenzoszillator
US4560950A (en) * 1983-09-29 1985-12-24 Tektronix, Inc. Method and circuit for phase lock loop initialization
CH670020A5 (en) * 1986-01-20 1989-04-28 Studer Willi Ag Signal synchronising phase-lock circuit - has frequency divider for output signal reset in synchronism with signal flanks of input signal
US4817199A (en) * 1987-07-17 1989-03-28 Rockwell International Corporation Phase locked loop having reduced response time
JPH0793577B2 (ja) * 1988-09-02 1995-10-09 日本電信電話株式会社 周波数シンセサイザ

Also Published As

Publication number Publication date
EP0553748B1 (en) 1998-04-01
EP0553748A3 (en) 1993-12-08
DE69317685T2 (de) 1998-07-23
CA2084284C (en) 1998-12-29
NO930097L (no) 1993-08-02
US5304951A (en) 1994-04-19
CA2084284A1 (en) 1993-08-01
DE69317685D1 (de) 1998-05-07
NO307948B1 (no) 2000-06-19
NO930097D0 (no) 1993-01-12
EP0553748A2 (en) 1993-08-04
JPH0621811A (ja) 1994-01-28
IL104176A (en) 1995-10-31
HK1009892A1 (en) 1999-06-11
JP2738488B2 (ja) 1998-04-08

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