DK224688A - OSCILLATOR EQUIPMENT TO PROVIDE AT LEAST TWO DIFFERENT FREQUENCIES - Google Patents

OSCILLATOR EQUIPMENT TO PROVIDE AT LEAST TWO DIFFERENT FREQUENCIES

Info

Publication number
DK224688A
DK224688A DK224688A DK224688A DK224688A DK 224688 A DK224688 A DK 224688A DK 224688 A DK224688 A DK 224688A DK 224688 A DK224688 A DK 224688A DK 224688 A DK224688 A DK 224688A
Authority
DK
Denmark
Prior art keywords
phase
different frequencies
locked loops
supplied
reference signal
Prior art date
Application number
DK224688A
Other languages
Danish (da)
Other versions
DK224688D0 (en
Inventor
Joerg Schenk
Original Assignee
Hagenuk Telecom Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6330102&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK224688(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hagenuk Telecom Gmbh filed Critical Hagenuk Telecom Gmbh
Publication of DK224688D0 publication Critical patent/DK224688D0/en
Publication of DK224688A publication Critical patent/DK224688A/en

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

Abstract

An oscillator device for generating at least two different frequencies having at least two separate phase-locked loops PLL and in each case tunable oscillators VCO connected to the phase-locked loops in control loops is proposed, a reference signal generated from a fixed reference frequency by frequency division being supplied to phase detectors of the phase-locked loops. In this arrangement, the phase detectors (16, 17) of both phase-locked loops (11, 12) are supplied with the same reference signal (18). <IMAGE>
DK224688A 1987-06-23 1988-04-25 OSCILLATOR EQUIPMENT TO PROVIDE AT LEAST TWO DIFFERENT FREQUENCIES DK224688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3720682A DE3720682C2 (en) 1987-06-23 1987-06-23 Oscillator device for generating at least two different frequencies

Publications (2)

Publication Number Publication Date
DK224688D0 DK224688D0 (en) 1988-04-25
DK224688A true DK224688A (en) 1988-12-24

Family

ID=6330102

Family Applications (1)

Application Number Title Priority Date Filing Date
DK224688A DK224688A (en) 1987-06-23 1988-04-25 OSCILLATOR EQUIPMENT TO PROVIDE AT LEAST TWO DIFFERENT FREQUENCIES

Country Status (6)

Country Link
EP (1) EP0296311B2 (en)
AT (1) ATE75084T1 (en)
DE (2) DE3720682C2 (en)
DK (1) DK224688A (en)
ES (1) ES2032479T5 (en)
GR (2) GR3005055T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228598A (en) * 1989-02-28 1990-08-29 Ibm Clock signal generator for a data processing system
JPH0537435A (en) * 1991-07-31 1993-02-12 Nec Corp Local oscillation frequency synthesizer used for tdma system
FR2694145B1 (en) * 1992-07-21 1994-12-09 Sextant Avionique Device for converting an electrical quantity into a frequency with the possibility of self-calibration of said conversion.
DE10354521A1 (en) 2003-11-14 2005-06-23 Atmel Germany Gmbh Method for synchronizing several oscillators

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2256582B1 (en) 1973-12-27 1976-11-19 Trt Telecom Radio Electr
GB2113493B (en) 1979-03-06 1983-12-21 Racal Dana Instr Ltd Frequency synthesizer with f.m. capability
DE3046486C2 (en) 1980-12-10 1984-03-22 Wandel & Goltermann Gmbh & Co, 7412 Eningen Method for reducing the noise of a digitally adjustable frequency generator and frequency generator operating according to it

Also Published As

Publication number Publication date
EP0296311B1 (en) 1992-04-15
ATE75084T1 (en) 1992-05-15
EP0296311A3 (en) 1989-03-22
EP0296311A2 (en) 1988-12-28
DK224688D0 (en) 1988-04-25
GR3005055T3 (en) 1993-05-24
ES2032479T3 (en) 1993-02-16
DE3720682C2 (en) 1994-12-08
DE3870049D1 (en) 1992-05-21
DE3720682A1 (en) 1989-01-05
EP0296311B2 (en) 1995-05-24
ES2032479T5 (en) 1995-11-01
GR3017215T3 (en) 1995-11-30

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment