JPS51135310A - Local oscillator for multi-channel - Google Patents

Local oscillator for multi-channel

Info

Publication number
JPS51135310A
JPS51135310A JP50059420A JP5942075A JPS51135310A JP S51135310 A JPS51135310 A JP S51135310A JP 50059420 A JP50059420 A JP 50059420A JP 5942075 A JP5942075 A JP 5942075A JP S51135310 A JPS51135310 A JP S51135310A
Authority
JP
Japan
Prior art keywords
channel
local oscillator
spurias
strive
omitting
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
JP50059420A
Other languages
Japanese (ja)
Inventor
Masayuki Sakamoto
Kota Kinoshita
Akio Sasaki
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP50059420A priority Critical patent/JPS51135310A/en
Publication of JPS51135310A publication Critical patent/JPS51135310A/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
    • H03L7/183—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)
  • Transceivers (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To strive a simplification of circuit constitution and a reduction of spurias emission by omitting a mixer of digital synthesizer and dividing VCO output directly.
JP50059420A 1975-05-19 1975-05-19 Local oscillator for multi-channel Pending JPS51135310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50059420A JPS51135310A (en) 1975-05-19 1975-05-19 Local oscillator for multi-channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50059420A JPS51135310A (en) 1975-05-19 1975-05-19 Local oscillator for multi-channel

Publications (1)

Publication Number Publication Date
JPS51135310A true JPS51135310A (en) 1976-11-24

Family

ID=13112740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50059420A Pending JPS51135310A (en) 1975-05-19 1975-05-19 Local oscillator for multi-channel

Country Status (1)

Country Link
JP (1) JPS51135310A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243216A (en) * 1985-08-20 1987-02-25 Nec Corp Frequency synthesizer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860510A (en) * 1971-11-29 1973-08-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860510A (en) * 1971-11-29 1973-08-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243216A (en) * 1985-08-20 1987-02-25 Nec Corp Frequency synthesizer

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