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FR2305888A1 - Programmable signal generator with phase locked loop - has two integral multiple reference frequencies mixed with output of VCO - Google Patents

Programmable signal generator with phase locked loop - has two integral multiple reference frequencies mixed with output of VCO

Info

Publication number
FR2305888A1
FR2305888A1 FR7509581A FR7509581A FR2305888A1 FR 2305888 A1 FR2305888 A1 FR 2305888A1 FR 7509581 A FR7509581 A FR 7509581A FR 7509581 A FR7509581 A FR 7509581A FR 2305888 A1 FR2305888 A1 FR 2305888A1
Authority
FR
France
Prior art keywords
vco
output
integral multiple
mixer
locked loop
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
FR7509581A
Other languages
French (fr)
Other versions
FR2305888B1 (en
Inventor
Roger Charbonnier
Joel Remy
Alphonse Blandel
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.)
Adret Electronique SA
Original Assignee
Adret Electronique 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 Adret Electronique SA filed Critical Adret Electronique SA
Priority to FR7509581A priority Critical patent/FR2305888A1/en
Publication of FR2305888A1 publication Critical patent/FR2305888A1/en
Application granted granted Critical
Publication of FR2305888B1 publication Critical patent/FR2305888B1/fr
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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers

Landscapes

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

Abstract

The programmable signal generator, with phase locked loop, consists essentially of two or more series coupled mixers or phase discriminators that mix the vco output with two or more reference signals (each an integral multiple of a basic frequency) to form the error signal for applying to the vco's control input. In its simplest form the generator has a first mixer (E1) to mix the vco output with a reference signal (mP) whose frequency is an integral multiple of a first reference (P). The first mixer's output is LP filtered (FL) and mixed with the first reference. The second mixer's (E2) output controls the vco frequency. Other variations include switched references to the same mixer extra filters and more mixers.
FR7509581A 1975-03-27 1975-03-27 Programmable signal generator with phase locked loop - has two integral multiple reference frequencies mixed with output of VCO Granted FR2305888A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7509581A FR2305888A1 (en) 1975-03-27 1975-03-27 Programmable signal generator with phase locked loop - has two integral multiple reference frequencies mixed with output of VCO

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7509581A FR2305888A1 (en) 1975-03-27 1975-03-27 Programmable signal generator with phase locked loop - has two integral multiple reference frequencies mixed with output of VCO

Publications (2)

Publication Number Publication Date
FR2305888A1 true FR2305888A1 (en) 1976-10-22
FR2305888B1 FR2305888B1 (en) 1977-11-18

Family

ID=9153170

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7509581A Granted FR2305888A1 (en) 1975-03-27 1975-03-27 Programmable signal generator with phase locked loop - has two integral multiple reference frequencies mixed with output of VCO

Country Status (1)

Country Link
FR (1) FR2305888A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497425A1 (en) * 1980-12-31 1982-07-02 Adret Electronique FREQUENCY SYNTHESIZER WITH FRACTIONAL MULTIPLIER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497425A1 (en) * 1980-12-31 1982-07-02 Adret Electronique FREQUENCY SYNTHESIZER WITH FRACTIONAL MULTIPLIER

Also Published As

Publication number Publication date
FR2305888B1 (en) 1977-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse