JPS56137737A - Phase-synchronizing circuit - Google Patents

Phase-synchronizing circuit

Info

Publication number
JPS56137737A
JPS56137737A JP4014980A JP4014980A JPS56137737A JP S56137737 A JPS56137737 A JP S56137737A JP 4014980 A JP4014980 A JP 4014980A JP 4014980 A JP4014980 A JP 4014980A JP S56137737 A JPS56137737 A JP S56137737A
Authority
JP
Japan
Prior art keywords
frequency
component
signal
controlling oscillator
phase
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.)
Pending
Application number
JP4014980A
Other languages
Japanese (ja)
Inventor
Yoshimitsu Ishiro
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.)
Anritsu Corp
Original Assignee
Anritsu Corp
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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP4014980A priority Critical patent/JPS56137737A/en
Publication of JPS56137737A publication Critical patent/JPS56137737A/en
Pending 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/104—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional signal from outside the loop for setting or controlling a parameter in the loop
    • 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
    • H03L2207/06—Phase locked loops with a controlled oscillator having at least two frequency control terminals

Landscapes

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

Abstract

PURPOSE:To improve C/N by a simple circuit and to eliminate the delay of pull-in time by inputting a DC component led out of a loop filter to a frequency controlling oscillator and by correcting a rough tuning frequency by comparing the integral output of the DC component with upper and lower limit values of frequencies which can be phase-synchronized. CONSTITUTION:The output of frequency controlling oscillator 1 is frequency-divided by frequency converter 5, whose output is inputted to frequency phase comparator 3. Then, it is compared with a signal from reference signal generator 4 and the voltage signal that corresponds to the phase difference is inputted to loop filter 2. Loop filter 2 extracts a DC component from the input signal to control the oscillation frequency of frequency controlling oscillator 1. On the other hand, the said DC component is applied to integrator 7, whose integral output is compared with upper limit and lower limit comparison voltage preset in frequency synchronizing circuit 8, which when it is greater than the upper limit or less than the lower limit, outputs a signal for correcting the rough tuning frequency of frequency controlling oscillator 1.
JP4014980A 1980-03-31 1980-03-31 Phase-synchronizing circuit Pending JPS56137737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4014980A JPS56137737A (en) 1980-03-31 1980-03-31 Phase-synchronizing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4014980A JPS56137737A (en) 1980-03-31 1980-03-31 Phase-synchronizing circuit

Publications (1)

Publication Number Publication Date
JPS56137737A true JPS56137737A (en) 1981-10-27

Family

ID=12572705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4014980A Pending JPS56137737A (en) 1980-03-31 1980-03-31 Phase-synchronizing circuit

Country Status (1)

Country Link
JP (1) JPS56137737A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03159319A (en) * 1989-11-16 1991-07-09 Pioneer Electron Corp Pll circuit
JP2008521708A (en) * 2004-11-26 2008-06-26 エルエム、ベタイリグングス、アクチエンゲゼルシャフト Method of providing a capsule on the neck when filling a plastic bottle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03159319A (en) * 1989-11-16 1991-07-09 Pioneer Electron Corp Pll circuit
JP2008521708A (en) * 2004-11-26 2008-06-26 エルエム、ベタイリグングス、アクチエンゲゼルシャフト Method of providing a capsule on the neck when filling a plastic bottle
JP4828546B2 (en) * 2004-11-26 2011-11-30 エルエム、ベタイリグングス、アクチエンゲゼルシャフト Method of providing a capsule on the neck when filling a plastic bottle

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