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JPS5585145A - Phase synchronizer - Google Patents

Phase synchronizer

Info

Publication number
JPS5585145A
JPS5585145A JP15978478A JP15978478A JPS5585145A JP S5585145 A JPS5585145 A JP S5585145A JP 15978478 A JP15978478 A JP 15978478A JP 15978478 A JP15978478 A JP 15978478A JP S5585145 A JPS5585145 A JP S5585145A
Authority
JP
Japan
Prior art keywords
output
frequency component
input signal
pass filter
low pass
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
JP15978478A
Other languages
Japanese (ja)
Other versions
JPS5951789B2 (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 JP53159784A priority Critical patent/JPS5951789B2/en
Publication of JPS5585145A publication Critical patent/JPS5585145A/en
Publication of JPS5951789B2 publication Critical patent/JPS5951789B2/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
    • 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
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To perform stable operation to noise, by detecting the synchronous condition with the output of the differential circuit forming high band filter, in response to the input and output difference of the low pass filter in phase locked loop. CONSTITUTION:The low frequency component obtained at the output of the phase comparator 2 in the impulsive noise included in the input signal f1 is the first input signal a of the differential amplifier 7, it passes through the low pass filter 3 to be the second input signal b and they are in phase. Accordingly, only high frequency component is included in the output of the differential amplifier 7. But, the high frequency component is reduced for the energy much with the low pass filter 3 and the detection voltage out of synchronism produced at the rectifying circuit 8 is slight. Thus, the malfunction due to noise is blocked and stable operation can be made.
JP53159784A 1978-12-22 1978-12-22 phase synchronizer Expired JPS5951789B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53159784A JPS5951789B2 (en) 1978-12-22 1978-12-22 phase synchronizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53159784A JPS5951789B2 (en) 1978-12-22 1978-12-22 phase synchronizer

Publications (2)

Publication Number Publication Date
JPS5585145A true JPS5585145A (en) 1980-06-26
JPS5951789B2 JPS5951789B2 (en) 1984-12-15

Family

ID=15701188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53159784A Expired JPS5951789B2 (en) 1978-12-22 1978-12-22 phase synchronizer

Country Status (1)

Country Link
JP (1) JPS5951789B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158725A (en) * 1984-01-30 1985-08-20 Toshiba Corp Step-out detecting system of clock reproduction circuit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144591U (en) * 1989-03-29 1990-12-07
JPH06115590A (en) * 1993-03-29 1994-04-26 Nippon Shirika Kogyo Kk Carrying container of superfine powdery substance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158725A (en) * 1984-01-30 1985-08-20 Toshiba Corp Step-out detecting system of clock reproduction circuit

Also Published As

Publication number Publication date
JPS5951789B2 (en) 1984-12-15

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