JPS56169927A - Frequency synthesizer - Google Patents

Frequency synthesizer

Info

Publication number
JPS56169927A
JPS56169927A JP7468580A JP7468580A JPS56169927A JP S56169927 A JPS56169927 A JP S56169927A JP 7468580 A JP7468580 A JP 7468580A JP 7468580 A JP7468580 A JP 7468580A JP S56169927 A JPS56169927 A JP S56169927A
Authority
JP
Japan
Prior art keywords
output
phase
pulse width
frequency divider
variable frequency
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
JP7468580A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6411170B2 (enrdf_load_html_response
Inventor
Yukihiko Miyake
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP7468580A priority Critical patent/JPS56169927A/ja
Publication of JPS56169927A publication Critical patent/JPS56169927A/ja
Publication of JPS6411170B2 publication Critical patent/JPS6411170B2/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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
    • 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
    • H03L7/1974—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 for fractional frequency division

Landscapes

  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
JP7468580A 1980-06-03 1980-06-03 Frequency synthesizer Granted JPS56169927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7468580A JPS56169927A (en) 1980-06-03 1980-06-03 Frequency synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7468580A JPS56169927A (en) 1980-06-03 1980-06-03 Frequency synthesizer

Publications (2)

Publication Number Publication Date
JPS56169927A true JPS56169927A (en) 1981-12-26
JPS6411170B2 JPS6411170B2 (enrdf_load_html_response) 1989-02-23

Family

ID=13554320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7468580A Granted JPS56169927A (en) 1980-06-03 1980-06-03 Frequency synthesizer

Country Status (1)

Country Link
JP (1) JPS56169927A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007219A1 (en) * 1985-05-22 1986-12-04 Plessey Overseas Limited Phase modulators
EP1434352A1 (en) * 2002-12-23 2004-06-30 STMicroelectronics Belgium N.V. Delay-compensated fractional-N frequency synthesizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986007219A1 (en) * 1985-05-22 1986-12-04 Plessey Overseas Limited Phase modulators
EP1434352A1 (en) * 2002-12-23 2004-06-30 STMicroelectronics Belgium N.V. Delay-compensated fractional-N frequency synthesizer
US6943600B2 (en) 2002-12-23 2005-09-13 Stmicroelectronics Belgium Nv Delay-compensated fractional-N frequency synthesizer

Also Published As

Publication number Publication date
JPS6411170B2 (enrdf_load_html_response) 1989-02-23

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