JPS56129429A - Frequency divider - Google Patents

Frequency divider

Info

Publication number
JPS56129429A
JPS56129429A JP3288880A JP3288880A JPS56129429A JP S56129429 A JPS56129429 A JP S56129429A JP 3288880 A JP3288880 A JP 3288880A JP 3288880 A JP3288880 A JP 3288880A JP S56129429 A JPS56129429 A JP S56129429A
Authority
JP
Japan
Prior art keywords
signal
frequency
synchronizing
phase
input
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
JP3288880A
Other languages
Japanese (ja)
Other versions
JPS6213850B2 (en
Inventor
Michio Nakanishi
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 JP3288880A priority Critical patent/JPS56129429A/en
Publication of JPS56129429A publication Critical patent/JPS56129429A/en
Publication of JPS6213850B2 publication Critical patent/JPS6213850B2/ja
Granted 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number

Landscapes

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

Abstract

PURPOSE:To obtain the frequency dividing signal from a lower synchronizing signal over broad band, by avoiding the limit due to the frequency selection of a local oscillator, through the playback of a signal in synchronizing with the microwave signal at a low frequency by using phase synchronizing loop. CONSTITUTION:A part of an input microwave signal (a) is branched at a distributor 1 and input to a phase detector 6, and the phase difference with the signal from a frequency multiplifier 7 is detected at the phase detector 6. The detected output is amplified at a loop amplifier for phase synchronizing feedback loop and fed to the voltage controlled oscillator 9. The oscillator 9 outputs the frequency in response to the input voltage and it is outputted to the multiplier 7 and also to the frequency divider 5, and the frequency-divided output is the signal in synchronizing with the phase of microwave signal.
JP3288880A 1980-03-14 1980-03-14 Frequency divider Granted JPS56129429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3288880A JPS56129429A (en) 1980-03-14 1980-03-14 Frequency divider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3288880A JPS56129429A (en) 1980-03-14 1980-03-14 Frequency divider

Publications (2)

Publication Number Publication Date
JPS56129429A true JPS56129429A (en) 1981-10-09
JPS6213850B2 JPS6213850B2 (en) 1987-03-30

Family

ID=12371414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3288880A Granted JPS56129429A (en) 1980-03-14 1980-03-14 Frequency divider

Country Status (1)

Country Link
JP (1) JPS56129429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127763U (en) * 1982-02-24 1983-08-30 ソニー株式会社 AFC circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127763U (en) * 1982-02-24 1983-08-30 ソニー株式会社 AFC circuit

Also Published As

Publication number Publication date
JPS6213850B2 (en) 1987-03-30

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