MXPA01004374A - Control de fase de osciladores. - Google Patents

Control de fase de osciladores.

Info

Publication number
MXPA01004374A
MXPA01004374A MXPA01004374A MXPA01004374A MXPA01004374A MX PA01004374 A MXPA01004374 A MX PA01004374A MX PA01004374 A MXPA01004374 A MX PA01004374A MX PA01004374 A MXPA01004374 A MX PA01004374A MX PA01004374 A MXPA01004374 A MX PA01004374A
Authority
MX
Mexico
Prior art keywords
voltage
clock signal
integrator
signal
control signal
Prior art date
Application number
MXPA01004374A
Other languages
English (en)
Inventor
Dale Altmanshofer Robert
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of MXPA01004374A publication Critical patent/MXPA01004374A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
    • 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
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • 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
    • H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Synchronizing For Television (AREA)

Abstract

Se describe un bucle de enganche de fase que comprende: un oscilador controlable (50, 20) que requiere de una senal de control que tenga un voltaje medio o de desviacion dado para generar una senal de reloj; un integrador (16) para desarrollar la senal de control; una fuente de senal de sincronizacion externa (HOR.SYNC.); primera y segunda fuentes de voltaje (15+ VDC, GND) definiendo un potencial de voltaje relacionado con el voltaje de medio o de desviacion dado; un primer conmutador (A) acoplado alas primera y segunda fuentes de voltaje y que responde a la senal de control (CTRL A) para desarrollar una senal de reloj regenerada teniendo un voltaje pico a pico determinado por el potencial de voltaje; y un segundo conmutador (B) que responde a la senal de sincronizacion externa (CTRLB) para muestrear periodicamente porciones de la senal de reloj regenerada y acoplar las porciones muestreadas al integrador, las porciones muestreadas cargando y descargando el integrador para generar la senal de reloj con una magnitud lo suficientemente grande para proporcionar el voltaje medio o de desviacion dado, los primero y segundo conmutadores (A, B) formando un detector de fase.
MXPA01004374A 2000-05-02 2001-05-02 Control de fase de osciladores. MXPA01004374A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56347800A 2000-05-02 2000-05-02

Publications (1)

Publication Number Publication Date
MXPA01004374A true MXPA01004374A (es) 2004-09-10

Family

ID=24250646

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA01004374A MXPA01004374A (es) 2000-05-02 2001-05-02 Control de fase de osciladores.

Country Status (8)

Country Link
US (1) US6420918B2 (es)
EP (1) EP1152537B1 (es)
JP (1) JP2002010102A (es)
KR (1) KR100860807B1 (es)
CN (1) CN1319273C (es)
DE (1) DE60126862T2 (es)
MX (1) MXPA01004374A (es)
MY (1) MY127109A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7136109B2 (en) * 2002-03-22 2006-11-14 Pelco Self-adjusting pixel clock and method therefor
CN103313144A (zh) * 2013-07-01 2013-09-18 贵州中科汉天下电子有限公司 射频开关的控制方法
CN108880504B (zh) * 2017-05-16 2021-10-08 博通集成电路（上海）股份有限公司 用于激励晶体振荡电路的方法以及电路

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662278A (en) * 1970-09-16 1972-05-09 Us Navy Automatic phase control circuit for tv system
US3821470A (en) * 1973-05-21 1974-06-28 Zenith Radio Corp Phase correction for horizontal oscillator in cmos form
NL170080C (nl) * 1974-05-27 1982-09-16 Philips Nv Schakeling voor het synchroniseren van een impulsvormig uitgangssignaal in het ritme van een periodiek impulsvormig ingangssignaal, alsmede halfgeleiderlichaam als onderdeel daarvan.
NL169811C (nl) * 1975-10-03 1982-08-16 Philips Nv Beeldregelsynchronisatieschakeling, alsmede televisieontvanger daarvan voorzien.
JPH04207883A (ja) * 1990-11-30 1992-07-29 Fujitsu Ltd クロック同期方式
US5459756A (en) * 1994-06-27 1995-10-17 Motorola, Inc. Sampling phase detector arrangement
US5748252A (en) * 1996-02-20 1998-05-05 Delco Electronics Corporation Method and apparatus for synchronizing internal and external video signals
US5796392A (en) 1997-02-24 1998-08-18 Paradise Electronics, Inc. Method and apparatus for clock recovery in a digital display unit
US6091304A (en) 1998-09-22 2000-07-18 Lg Information & Communications, Ltd. Frequency band select phase lock loop device

Also Published As

Publication number Publication date
CN1337783A (zh) 2002-02-27
MY127109A (en) 2006-11-30
EP1152537A2 (en) 2001-11-07
CN1319273C (zh) 2007-05-30
DE60126862T2 (de) 2007-10-31
EP1152537A3 (en) 2003-04-09
EP1152537B1 (en) 2007-02-28
DE60126862D1 (de) 2007-04-12
KR20010100958A (ko) 2001-11-14
JP2002010102A (ja) 2002-01-11
KR100860807B1 (ko) 2008-09-30
US6420918B2 (en) 2002-07-16
US20020011884A1 (en) 2002-01-31

Similar Documents

Publication Publication Date Title
TW358931B (en) Time multiplier having 2 feedback circuits
TW200713829A (en) Delay cell of voltage controlled delay line using digital and analog control scheme
CA2050771A1 (en) Phase-locked loop frequency tracking device including a direct digital synthesizer
EP0347737A3 (en) Synchronisation method for a clock generator, especially of a clock generator of a digital telephone exchange
KR940006346A (ko) 위상 동기 루프회로
TW200633392A (en) Sigma-delta based phase lock loop
MXPA01004374A (es) Control de fase de osciladores.
TW200617401A (en) Measuring the 3dB frequency bandwidth of a phase-locked loop
AU7566901A (en) Linear dead-band-free digital phase detection
JPS5797751A (en) Circuit for adding artificial synchronizing signal
EP1104113A3 (en) Clock and data recovery circuit for optical receiver
WO2002009290A3 (en) Analog phase locked loop holdover
CA2192881A1 (en) PLL Circuit and Noise Reduction Means for PLL Circuit
EP1143622A4 (en) PHASE CONTROL LOOP
AU3114400A (en) Low jitter high phase resolution pll-based timing recovery system
EP0206247A3 (en) Pll frequency synthesizer
TW200614675A (en) Phase-locked loop apparatus and method thereof
HK35996A (en) Integratable phase-locked loop
JPS56110363A (en) Multiplexing circuit using pll
TH48624A (th) การควบคุมเฟสสำหรับออสซิลเลเตอร์
JPS5357914A (en) Synchronous oscillator
JPS6429022A (en) Frequency generator
JPS57140035A (en) Phase synchronizing oscillation circuit
AU2001270693A1 (en) Method and device for frequency synthesis using a phase locked loop
JPS5717237A (en) Phase synchronizing circuit

Legal Events

Date Code Title Description
FG Grant or registration