JPS51136272A - Frequency synthesizer - Google Patents

Frequency synthesizer

Info

Publication number
JPS51136272A
JPS51136272A JP50061389A JP6138975A JPS51136272A JP S51136272 A JPS51136272 A JP S51136272A JP 50061389 A JP50061389 A JP 50061389A JP 6138975 A JP6138975 A JP 6138975A JP S51136272 A JPS51136272 A JP S51136272A
Authority
JP
Japan
Prior art keywords
frequency synthesizer
circumference
ratio less
splitting ratio
easily changeable
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
JP50061389A
Other languages
Japanese (ja)
Inventor
Masaaki Sasada
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 JP50061389A priority Critical patent/JPS51136272A/en
Publication of JPS51136272A publication Critical patent/JPS51136272A/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
    • H03L7/16—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
    • H03L7/197—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:Frequency synthesizer having circumference splitting ratio less than 1 which is easily changeable.
JP50061389A 1975-05-21 1975-05-21 Frequency synthesizer Pending JPS51136272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50061389A JPS51136272A (en) 1975-05-21 1975-05-21 Frequency synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50061389A JPS51136272A (en) 1975-05-21 1975-05-21 Frequency synthesizer

Publications (1)

Publication Number Publication Date
JPS51136272A true JPS51136272A (en) 1976-11-25

Family

ID=13169750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50061389A Pending JPS51136272A (en) 1975-05-21 1975-05-21 Frequency synthesizer

Country Status (1)

Country Link
JP (1) JPS51136272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138124A (en) * 1983-01-28 1984-08-08 Hitachi Ltd Frequency dividing circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493448B1 (en) * 1964-02-14 1974-01-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493448B1 (en) * 1964-02-14 1974-01-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59138124A (en) * 1983-01-28 1984-08-08 Hitachi Ltd Frequency dividing circuit

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