JPS5418660A - Phase synchronous circuit - Google Patents

Phase synchronous circuit

Info

Publication number
JPS5418660A
JPS5418660A JP8377877A JP8377877A JPS5418660A JP S5418660 A JPS5418660 A JP S5418660A JP 8377877 A JP8377877 A JP 8377877A JP 8377877 A JP8377877 A JP 8377877A JP S5418660 A JPS5418660 A JP S5418660A
Authority
JP
Japan
Prior art keywords
phase synchronous
synchronous circuit
phase
filter
converter
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
JP8377877A
Other languages
Japanese (ja)
Inventor
Koichi Ishii
Seiichiro Hirata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8377877A priority Critical patent/JPS5418660A/en
Publication of JPS5418660A publication Critical patent/JPS5418660A/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
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal

Landscapes

  • Superheterodyne Receivers (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To ensure a quick capture of a wide-band frequency by adding the narrowband filter, the signal existence detector circuit and the D/A converter to the phase synchronous loop composed of the frequency mixer, the phase detector, the loop filter and the voltage control oscillator respectively.
JP8377877A 1977-07-12 1977-07-12 Phase synchronous circuit Pending JPS5418660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8377877A JPS5418660A (en) 1977-07-12 1977-07-12 Phase synchronous circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8377877A JPS5418660A (en) 1977-07-12 1977-07-12 Phase synchronous circuit

Publications (1)

Publication Number Publication Date
JPS5418660A true JPS5418660A (en) 1979-02-10

Family

ID=13812062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8377877A Pending JPS5418660A (en) 1977-07-12 1977-07-12 Phase synchronous circuit

Country Status (1)

Country Link
JP (1) JPS5418660A (en)

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