NO923791L - CONNECTOR FOR SYNCHRONIZING A VOLTAGE TURTOSCILLATOR - Google Patents

CONNECTOR FOR SYNCHRONIZING A VOLTAGE TURTOSCILLATOR

Info

Publication number
NO923791L
NO923791L NO92923791A NO923791A NO923791L NO 923791 L NO923791 L NO 923791L NO 92923791 A NO92923791 A NO 92923791A NO 923791 A NO923791 A NO 923791A NO 923791 L NO923791 L NO 923791L
Authority
NO
Norway
Prior art keywords
signals
oscillator
phase
digital control
digital
Prior art date
Application number
NO92923791A
Other languages
Norwegian (no)
Other versions
NO923791D0 (en
Inventor
Konrad Reisinger
Dieter Recktenwald
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NO923791D0 publication Critical patent/NO923791D0/en
Publication of NO923791L publication Critical patent/NO923791L/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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal

Landscapes

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

Abstract

En koblingsanordning har en fasekom-parator (Ph, FT1, FT2) som sammenligner referansetaktsignaler og fra oscillatoren (VCO) avgitte oscillatortaktsignaler, en fasekontrollinnretning (PR) som etter storrelsen av på utgangen av fasekom-paratoren opptredende sammenligningssig-naler genererer digitale kontrollsignaler og en ved de digitale kontrollsignaler pådratt digital/analog-omformer (D/A) som avgir til disse digitale kontrollsignaler motsvarende analoge styrespenninger til oscillatoren. I den forbindelse er det i fasekontrollinnretningen (PR) anordnet en lageranordning (SP) i hvilken en rekke av de ved fasekontrollinnretningen genererte, påfølgende digitale kontrollsignaler lagres. Disse stilles til rådighet ved utfall av referansetaktsignalene (RF).A switching device has a phase comparator (Ph, FT1, FT2) which compares reference rate signals and oscillator rate signals emitted from the oscillator (VCO), a phase control device (PR) which, after the magnitude of comparison signals occurring at the output of the phase comparator and generates digital control signals. at the digital control signals applied digital / analog converter (D / A) which outputs to these digital control signals corresponding analog control voltages to the oscillator. In this connection, a storage device (SP) is arranged in the phase control device (PR) in which a series of the subsequent digital control signals generated by the phase control device are stored. These are made available in the event of a failure of the reference rate signals (RF).

NO92923791A 1991-09-30 1992-09-29 CONNECTOR FOR SYNCHRONIZING A VOLTAGE TURTOSCILLATOR NO923791L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9112177U DE9112177U1 (en) 1991-09-30 1991-09-30

Publications (2)

Publication Number Publication Date
NO923791D0 NO923791D0 (en) 1992-09-29
NO923791L true NO923791L (en) 1993-03-31

Family

ID=6871800

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92923791A NO923791L (en) 1991-09-30 1992-09-29 CONNECTOR FOR SYNCHRONIZING A VOLTAGE TURTOSCILLATOR

Country Status (3)

Country Link
EP (1) EP0535397A3 (en)
DE (1) DE9112177U1 (en)
NO (1) NO923791L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204229C3 (en) * 1992-02-13 1997-09-04 Katek Kabel Kommunikations Anl Phase synchronous control device
FI93285C (en) * 1993-03-08 1995-03-10 Nokia Telecommunications Oy Method for generating a clock signal by means of a phase-locked loop and a phase-locked loop
US6124764A (en) * 1999-01-22 2000-09-26 Telefonaktiebolaget Lm Ericsson Stable low-power oscillator
DE19937997C2 (en) * 1999-08-11 2003-04-17 Siemens Ag Phase-locked loop

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624673A1 (en) * 1987-12-15 1989-06-16 Milon Jean Digitally controlled oscillator, using a switchable element, application to the production of devices for recovering the tempo and phase of a digital signal
US4827225A (en) * 1988-06-13 1989-05-02 Unisys Corporation Fast locking phase-locked loop utilizing frequency estimation
US4980899A (en) * 1988-06-21 1990-12-25 Siemens Ag Method and apparatus for synchronization of a clock signal generator particularly useful in a digital telecommunications exchange
JPH02100518A (en) * 1988-10-07 1990-04-12 Nec Corp Digital processing type phase locked loop oscillator
DE3910703A1 (en) * 1989-04-03 1990-10-04 Philips Patentverwaltung HYBRID PHASE CONTROL CIRCUIT
US5028885A (en) * 1990-08-30 1991-07-02 Motorola, Inc. Phase-locked loop signal generation system with control maintenance

Also Published As

Publication number Publication date
DE9112177U1 (en) 1991-12-12
NO923791D0 (en) 1992-09-29
EP0535397A3 (en) 1993-09-29
EP0535397A2 (en) 1993-04-07

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