GB1393124A - Frequency synthesiser - Google Patents

Frequency synthesiser

Info

Publication number
GB1393124A
GB1393124A GB2611072A GB2611072A GB1393124A GB 1393124 A GB1393124 A GB 1393124A GB 2611072 A GB2611072 A GB 2611072A GB 2611072 A GB2611072 A GB 2611072A GB 1393124 A GB1393124 A GB 1393124A
Authority
GB
United Kingdom
Prior art keywords
frequency
stable
input
oscillator
divider
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.)
Expired
Application number
GB2611072A
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.)
Thales SA
Original Assignee
Dassault Electronique SA
Electronique Marcal Dassault SA
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 Dassault Electronique SA, Electronique Marcal Dassault SA filed Critical Dassault Electronique SA
Publication of GB1393124A publication Critical patent/GB1393124A/en
Expired 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
    • H03L7/185—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 using a mixer in the loop

Landscapes

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

Abstract

1393124 Automatic phase control ELECTRONIQUE MARCEL DASSAULT 5 June 1972 [14 June 1971] 26110/72 Heading H3A A frequency synthesizer utilizes a bi-stable circuit as a frequency changer, one of the two signals to be mixed being applied to its clock input. The synthesizer comprises a free running oscillator 10 coupled to the bi-stable frequency changer 12 by a fixed frequency divider 11. The other input to the bi-stable 12 is provided by a reference frequency oscillator 15, which also provides one input to phase comparator 21 via another fixed divider 23. The difference frequency output from bi-stable 12 is fed to the other input of phase comparator 21 via variable divider 17, and to resulting error signal output from comparator 21 is fed via filter 24 to control the frequency of oscillator 10.
GB2611072A 1971-06-14 1972-06-05 Frequency synthesiser Expired GB1393124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7121508A FR2142134A5 (en) 1971-06-14 1971-06-14

Publications (1)

Publication Number Publication Date
GB1393124A true GB1393124A (en) 1975-05-07

Family

ID=9078600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2611072A Expired GB1393124A (en) 1971-06-14 1972-06-05 Frequency synthesiser

Country Status (12)

Country Link
JP (1) JPS535031B1 (en)
BE (1) BE784152A (en)
CA (1) CA965849A (en)
CH (1) CH557113A (en)
DE (1) DE2227698B2 (en)
ES (1) ES403830A1 (en)
FR (1) FR2142134A5 (en)
GB (1) GB1393124A (en)
IL (1) IL39601A (en)
IT (1) IT956134B (en)
NL (1) NL7207720A (en)
ZA (1) ZA723942B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041561A1 (en) * 1979-12-13 1981-12-16 General Electric Company Crystal-oscillator-stabilized phase-locked-loop-circuit
EP0793348A1 (en) * 1996-02-29 1997-09-03 Nec Corporation Phase lock loop circuit

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL163396C (en) * 1974-04-22 1980-08-15 Philips Nv MULTI-CHANNEL GENERATOR.
JPS52149739U (en) * 1976-05-08 1977-11-14
DE2910727C2 (en) * 1979-03-19 1983-11-03 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for modulating the phase of a carrier wave
US4634987A (en) * 1984-10-01 1987-01-06 Sundstrand Data Control, Inc. Frequency multiplier
JP2861542B2 (en) * 1991-10-25 1999-02-24 日本電気株式会社 Phase locked loop synthesizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041561A1 (en) * 1979-12-13 1981-12-16 General Electric Company Crystal-oscillator-stabilized phase-locked-loop-circuit
EP0041561A4 (en) * 1979-12-13 1982-04-29 Gen Electric Crystal-oscillator-stabilized phase-locked-loop-circuit.
EP0793348A1 (en) * 1996-02-29 1997-09-03 Nec Corporation Phase lock loop circuit
US5831481A (en) * 1996-02-29 1998-11-03 Nec Corporation Phase lock loop circuit having a broad loop band and small step frequency

Also Published As

Publication number Publication date
CA965849A (en) 1975-04-08
ES403830A1 (en) 1976-01-01
BE784152A (en) 1972-11-30
DE2227698A1 (en) 1972-12-21
ZA723942B (en) 1973-03-28
FR2142134A5 (en) 1973-01-26
IL39601A0 (en) 1972-08-30
CH557113A (en) 1974-12-13
DE2227698B2 (en) 1978-05-11
JPS535031B1 (en) 1978-02-23
IL39601A (en) 1975-05-22
NL7207720A (en) 1972-12-18
IT956134B (en) 1973-10-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee