GB2015277B - Frequency synthesizer - Google Patents
Frequency synthesizerInfo
- Publication number
- GB2015277B GB2015277B GB7844526A GB7844526A GB2015277B GB 2015277 B GB2015277 B GB 2015277B GB 7844526 A GB7844526 A GB 7844526A GB 7844526 A GB7844526 A GB 7844526A GB 2015277 B GB2015277 B GB 2015277B
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency synthesizer
- synthesizer
- frequency
- 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
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
- H03L7/187—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 means for coarse tuning the voltage controlled oscillator of the loop
- H03L7/189—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 means for coarse tuning the voltage controlled oscillator of the loop comprising a D/A converter for generating a coarse tuning voltage
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7844526A GB2015277B (en) | 1977-11-30 | 1978-11-15 | Frequency synthesizer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4997277 | 1977-11-30 | ||
| GB7844526A GB2015277B (en) | 1977-11-30 | 1978-11-15 | Frequency synthesizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2015277A GB2015277A (en) | 1979-09-05 |
| GB2015277B true GB2015277B (en) | 1982-09-29 |
Family
ID=26266579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7844526A Expired GB2015277B (en) | 1977-11-30 | 1978-11-15 | Frequency synthesizer |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2015277B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330758A (en) * | 1980-02-20 | 1982-05-18 | Motorola, Inc. | Synchronized frequency synthesizer with high speed lock |
| FR2483704A1 (en) * | 1980-06-03 | 1981-12-04 | Thomson Csf | FREQUENCY PRESPOSITION DEVICE FOR INDIRECT SYNTHESIZER OF FREQUENCY AND SYNTHESIZER COMPRISING SUCH A DEVICE |
| GB2124047A (en) * | 1982-07-10 | 1984-02-08 | Plessey Co Plc | Frequency synthesiser |
| US4792768A (en) * | 1987-11-06 | 1988-12-20 | Hewlett-Packard Company | Fast frequency settling signal generator utilizing a frequency locked-loop |
| DE58908588D1 (en) * | 1988-10-18 | 1994-12-08 | Siemens Ag Albis | Frequency synthesizer. |
| US4885553A (en) * | 1988-11-30 | 1989-12-05 | Motorola, Inc. | Continuously adaptive phase locked loop synthesizer |
| GB2228840B (en) * | 1989-03-04 | 1993-02-10 | Racal Dana Instr Ltd | Frequency synthesisers |
| JPH07101865B2 (en) * | 1989-06-23 | 1995-11-01 | 日本電気株式会社 | Frequency setting method for wireless transmitter |
| GB2373113B (en) * | 2001-08-24 | 2003-01-22 | Roke Manor Research | Improvements in or relating to fast frequency-hopping synthesisers |
-
1978
- 1978-11-15 GB GB7844526A patent/GB2015277B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2015277A (en) | 1979-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |