DE50124T1 - Anordnung zur frequenzmodulation eines frequenzsynthesierers mit phasenstarrer schleife. - Google Patents
Anordnung zur frequenzmodulation eines frequenzsynthesierers mit phasenstarrer schleife.Info
- Publication number
- DE50124T1 DE50124T1 DE198181900873T DE81900873T DE50124T1 DE 50124 T1 DE50124 T1 DE 50124T1 DE 198181900873 T DE198181900873 T DE 198181900873T DE 81900873 T DE81900873 T DE 81900873T DE 50124 T1 DE50124 T1 DE 50124T1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- input
- output
- phase
- modulation
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims 6
- 238000000034 method Methods 0.000 claims 2
- 230000010363 phase shift Effects 0.000 claims 1
- 230000029305 taxis Effects 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0983—Modifications of modulator for regulating the mean frequency using a phase locked loop containing in the loop a mixer other than for phase detection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
- H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0958—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation by varying the characteristics of the voltage controlled oscillator
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
- H03C2200/0037—Functional aspects of modulators
- H03C2200/005—Modulation sensitivity
- H03C2200/0054—Filtering of the input modulating signal for obtaining a constant sensitivity of frequency modulation
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1980/000501 WO1981003250A1 (en) | 1980-05-01 | 1980-05-01 | Arrangement for angle modulating a phase-locked loop frequency synthesizer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE50124T1 true DE50124T1 (de) | 1983-01-05 |
Family
ID=22154314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE198181900873T Pending DE50124T1 (de) | 1980-05-01 | 1980-05-01 | Anordnung zur frequenzmodulation eines frequenzsynthesierers mit phasenstarrer schleife. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0050124A4 (ko) |
JP (1) | JPS57500761A (ko) |
CA (1) | CA1175922A (ko) |
DE (1) | DE50124T1 (ko) |
DK (1) | DK578981A (ko) |
WO (1) | WO1981003250A1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58105631A (ja) * | 1981-12-17 | 1983-06-23 | Nec Corp | 周波数変調送信機 |
GB2140234B (en) * | 1983-05-17 | 1986-07-23 | Marconi Instruments Ltd | Signal generators |
US4755774A (en) * | 1985-07-15 | 1988-07-05 | Motorola Inc. | Two-port synthesizer modulation system employing an improved reference phase modulator |
DE8712331U1 (de) * | 1986-09-26 | 1988-01-28 | Flowtec AG, Reinach, Basel | Corioliskraft-Massendurchflussmesser |
DE19601013A1 (de) * | 1996-01-13 | 1997-07-17 | Bosch Gmbh Robert | Verfahren und Anordnung zur Frequenzmodulation eines hochfrequenten Signals |
FR2798019B1 (fr) | 1999-08-26 | 2002-08-16 | Cit Alcatel | Synthetiseur de frequences a boucle de phase |
GB2389252B (en) | 2002-05-31 | 2006-09-27 | Zarlink Semiconductor Ltd | A frequency modulation system & method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3593182A (en) * | 1969-04-16 | 1971-07-13 | Motorola Inc | Afc system for microwave energy sources |
US3622913A (en) * | 1969-10-29 | 1971-11-23 | Rca Corp | Frequency modulated phase-locked oscillator having a low- and high-frequency response |
US3805192A (en) * | 1972-08-09 | 1974-04-16 | Electronic Communications | Frequency modulator-variable frequency generator |
DE2914814A1 (de) * | 1979-04-11 | 1980-10-30 | Siemens Ag | Frequenzmodulator |
-
1980
- 1980-05-01 DE DE198181900873T patent/DE50124T1/de active Pending
- 1980-05-01 EP EP19810900873 patent/EP0050124A4/en not_active Withdrawn
- 1980-05-01 WO PCT/US1980/000501 patent/WO1981003250A1/en not_active Application Discontinuation
- 1980-05-01 JP JP81501281A patent/JPS57500761A/ja active Pending
-
1981
- 1981-05-01 CA CA000376670A patent/CA1175922A/en not_active Expired
- 1981-12-28 DK DK578981A patent/DK578981A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA1175922A (en) | 1984-10-09 |
EP0050124A1 (en) | 1982-04-28 |
DK578981A (da) | 1981-12-28 |
EP0050124A4 (en) | 1982-09-03 |
JPS57500761A (ko) | 1982-04-30 |
WO1981003250A1 (en) | 1981-11-12 |
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