JPS5567239A - Phase detector - Google Patents

Phase detector

Info

Publication number
JPS5567239A
JPS5567239A JP14077778A JP14077778A JPS5567239A JP S5567239 A JPS5567239 A JP S5567239A JP 14077778 A JP14077778 A JP 14077778A JP 14077778 A JP14077778 A JP 14077778A JP S5567239 A JPS5567239 A JP S5567239A
Authority
JP
Japan
Prior art keywords
time
mode
detection
ffs
reset
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
JP14077778A
Other languages
Japanese (ja)
Other versions
JPS5851693B2 (en
Inventor
Kazuhiko Takahashi
Noritada Sekino
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.)
Shindengen Electric Manufacturing Co Ltd
Original Assignee
Shindengen Electric Manufacturing 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 Shindengen Electric Manufacturing Co Ltd filed Critical Shindengen Electric Manufacturing Co Ltd
Priority to JP53140777A priority Critical patent/JPS5851693B2/en
Publication of JPS5567239A publication Critical patent/JPS5567239A/en
Publication of JPS5851693B2 publication Critical patent/JPS5851693B2/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
    • H03L7/089—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

Landscapes

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

Abstract

PURPOSE:To obtain a phase detector for PLL suitable for the control of a resonance tracking circuit system, etc., by inhibiting generation of signals of a phase error over 180 deg.. CONSTITUTION:Assuming that phases of input signals R and V have relations of (a) and (b), output (P7) of gate 9 resets FFs 6 and 7 to set an initial state in case of a L level, and therefore, (P7) is L and FFs 6 and 7 are reset during times t1- t2; and when input signal R becomes H-level at time t2, FF 6 is set to perform phase error detection of detection mode (mode 1) within 180 deg.. Even if FFs 6 and 7 are reset at time t4 by causes sucy as noise during operation and FF 7 is set at time t4+DELTAt to start the detection operation of detection mode (mode 2) over 180 deg., FF 7 is reset again at time t5-t6, so that detection of mode 1 can be performed by setting FF 6 again from time t6.
JP53140777A 1978-11-15 1978-11-15 phase detector Expired JPS5851693B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53140777A JPS5851693B2 (en) 1978-11-15 1978-11-15 phase detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53140777A JPS5851693B2 (en) 1978-11-15 1978-11-15 phase detector

Publications (2)

Publication Number Publication Date
JPS5567239A true JPS5567239A (en) 1980-05-21
JPS5851693B2 JPS5851693B2 (en) 1983-11-17

Family

ID=15276498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53140777A Expired JPS5851693B2 (en) 1978-11-15 1978-11-15 phase detector

Country Status (1)

Country Link
JP (1) JPS5851693B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0435618U (en) * 1990-07-17 1992-03-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0435618U (en) * 1990-07-17 1992-03-25

Also Published As

Publication number Publication date
JPS5851693B2 (en) 1983-11-17

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