IT8023736A0 - Sintetizzatore di frequenza del tipo a circuito agganciato in fase. - Google Patents

Sintetizzatore di frequenza del tipo a circuito agganciato in fase.

Info

Publication number
IT8023736A0
IT8023736A0 IT8023736A IT2373680A IT8023736A0 IT 8023736 A0 IT8023736 A0 IT 8023736A0 IT 8023736 A IT8023736 A IT 8023736A IT 2373680 A IT2373680 A IT 2373680A IT 8023736 A0 IT8023736 A0 IT 8023736A0
Authority
IT
Italy
Prior art keywords
phase locked
frequency synthesizer
circuit type
type frequency
locked circuit
Prior art date
Application number
IT8023736A
Other languages
English (en)
Other versions
IT1194674B (it
IT8023736A1 (it
Inventor
Grand Jesse Sterling Le
Original Assignee
Int Standard 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of IT8023736A0 publication Critical patent/IT8023736A0/it
Publication of IT8023736A1 publication Critical patent/IT8023736A1/it
Application granted granted Critical
Publication of IT1194674B publication Critical patent/IT1194674B/it

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
    • 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
IT23736/80A 1979-07-30 1980-07-28 Sintetizzatore di frequenza del tipo a circuito agganciato in fase IT1194674B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/061,723 US4290028A (en) 1979-07-30 1979-07-30 High speed phase locked loop frequency synthesizer

Publications (3)

Publication Number Publication Date
IT8023736A0 true IT8023736A0 (it) 1980-07-28
IT8023736A1 IT8023736A1 (it) 1982-01-28
IT1194674B IT1194674B (it) 1988-09-22

Family

ID=22037696

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23736/80A IT1194674B (it) 1979-07-30 1980-07-28 Sintetizzatore di frequenza del tipo a circuito agganciato in fase

Country Status (5)

Country Link
US (1) US4290028A (it)
JP (1) JPS5621422A (it)
DE (1) DE3027653C2 (it)
FR (1) FR2462815A1 (it)
IT (1) IT1194674B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027828A1 (de) * 1980-07-23 1982-03-04 Deutsche Itt Industries Gmbh, 7800 Freiburg Frequenz/phasenregelschleife
JPS57150232A (en) * 1981-03-12 1982-09-17 Sanyo Electric Co Ltd Phase synchronizing loop
US4472820A (en) * 1981-04-06 1984-09-18 Motorola, Inc. Program swallow counting device using a single synchronous counter for frequency synthesizing
US4468632A (en) * 1981-11-30 1984-08-28 Rca Corporation Phase locked loop frequency synthesizer including fractional digital frequency divider
JPS5959038U (ja) * 1982-10-12 1984-04-17 株式会社アドバンテスト 周波数シンセサイザ
US4727318A (en) * 1984-10-04 1988-02-23 Sony/Tektronix Corporation Apparatus for measuring characteristics of electronic devices
FR2576723A1 (fr) * 1985-01-25 1986-08-01 Dassault Electronique Synthetiseur de frequence perfectionne
US4810904A (en) * 1985-07-17 1989-03-07 Hughes Aircraft Company Sample-and-hold phase detector circuit
US4668922A (en) * 1985-07-17 1987-05-26 Hughes Aircraft Company Fast phase-lock frequency synthesizer
US4634998A (en) * 1985-07-17 1987-01-06 Hughes Aircraft Company Fast phase-lock frequency synthesizer with variable sampling efficiency
CA1282465C (en) * 1986-02-27 1991-04-02 Hitachi, Ltd. Phase-locked loop
US5349544A (en) * 1988-06-15 1994-09-20 Advanced Micro Devices, Inc. Programmable system synchronizer
DE4339304B4 (de) * 1993-11-18 2005-09-15 Robert Bosch Gmbh Schaltungsanordnung mit einem Übertragungsglied
EP0782271B1 (en) * 1995-12-28 2002-03-13 Thomson Consumer Electronics, Inc. Phase locked loop with controllable response time
US6570458B2 (en) 2001-06-12 2003-05-27 Teradyne, Inc. Low noise microwave synthesizer employing high frequency combs for tuning drift cancel loop
US7315601B2 (en) * 2003-03-13 2008-01-01 Texas Instruments Incorporated Low-noise sigma-delta frequency synthesizer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6702110A (it) * 1967-02-11 1968-08-12
US3872397A (en) * 1973-11-07 1975-03-18 King Radio Corp Method and apparatus for decreasing channel spacing in digital frequency synthesizers
DD107829A1 (it) * 1973-12-04 1974-08-12
CH566089A5 (it) * 1973-12-20 1975-08-29 Hasler Ag
US3898690A (en) * 1974-09-06 1975-08-05 Pertec Corp Phase-locked loop for an electronic sectoring scheme for rotating magnetic memory
US3959737A (en) * 1974-11-18 1976-05-25 Engelmann Microwave Co. Frequency synthesizer having fractional frequency divider in phase-locked loop
US4121162A (en) * 1976-06-14 1978-10-17 Motorola, Inc. Digital phase locked loop tuning system
JPS535954A (en) * 1976-07-06 1978-01-19 Matsushita Electric Ind Co Ltd Oscillator
JPS54150933A (en) * 1978-05-19 1979-11-27 Toshiba Corp Normallizing device

Also Published As

Publication number Publication date
JPS6247379B2 (it) 1987-10-07
DE3027653A1 (de) 1981-04-02
FR2462815B3 (it) 1982-11-12
US4290028A (en) 1981-09-15
FR2462815A1 (fr) 1981-02-13
DE3027653C2 (de) 1994-03-17
IT1194674B (it) 1988-09-22
JPS5621422A (en) 1981-02-27
IT8023736A1 (it) 1982-01-28

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970729