JPS5636235A - Phase synchronizing circuit - Google Patents

Phase synchronizing circuit

Info

Publication number
JPS5636235A
JPS5636235A JP11189579A JP11189579A JPS5636235A JP S5636235 A JPS5636235 A JP S5636235A JP 11189579 A JP11189579 A JP 11189579A JP 11189579 A JP11189579 A JP 11189579A JP S5636235 A JPS5636235 A JP S5636235A
Authority
JP
Japan
Prior art keywords
level
signal
circuit
pulse
noise
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.)
Granted
Application number
JP11189579A
Other languages
Japanese (ja)
Other versions
JPS5927129B2 (en
Inventor
Mitsuo Isobe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP54111895A priority Critical patent/JPS5927129B2/en
Publication of JPS5636235A publication Critical patent/JPS5636235A/en
Publication of JPS5927129B2 publication Critical patent/JPS5927129B2/en
Expired 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

Landscapes

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

Abstract

PURPOSE:To improve the antinoise characteristic of the phase synchronization state detecting mechanism, by integrating a pulse noise and by utilizing the fact that the integrated value is small becuase of the narrow width. CONSTITUTION:When the phase synchronizing loop is asynchronous, the output beat signal of level comparator 7 is a continuous pulse signal of duty 50%, and the first waveform shaping circuit 8 performs charging and discharging operations to lower the signal up to the level of V4 after charging the signal up to the level of V3. The second waveform shaping circuit 9 has slice level V6 near the level of V3 and slices the output of circuit 8 and supplies the sliced result to integrator 10 as a pulse waveform. Since pulse noise is not charged up to the level of V3, this noise is not sliced by circuit 9 and has no influence upon integrator 10.
JP54111895A 1979-08-31 1979-08-31 phase synchronized circuit Expired JPS5927129B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54111895A JPS5927129B2 (en) 1979-08-31 1979-08-31 phase synchronized circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54111895A JPS5927129B2 (en) 1979-08-31 1979-08-31 phase synchronized circuit

Publications (2)

Publication Number Publication Date
JPS5636235A true JPS5636235A (en) 1981-04-09
JPS5927129B2 JPS5927129B2 (en) 1984-07-03

Family

ID=14572820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54111895A Expired JPS5927129B2 (en) 1979-08-31 1979-08-31 phase synchronized circuit

Country Status (1)

Country Link
JP (1) JPS5927129B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215136A (en) * 1982-05-28 1983-12-14 アールシーエー　ライセンシング　コーポレーシヨン Free-running frequency regulator for oscillator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62291425A (en) * 1986-06-12 1987-12-18 Mitsubishi Motors Corp Laminar combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215136A (en) * 1982-05-28 1983-12-14 アールシーエー　ライセンシング　コーポレーシヨン Free-running frequency regulator for oscillator
JPH0472411B2 (en) * 1982-05-28 1992-11-18 Rca Licensing Corp

Also Published As

Publication number Publication date
JPS5927129B2 (en) 1984-07-03

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