JPS55664A - Frequency synthesizer - Google Patents
Frequency synthesizerInfo
- Publication number
- JPS55664A JPS55664A JP7387578A JP7387578A JPS55664A JP S55664 A JPS55664 A JP S55664A JP 7387578 A JP7387578 A JP 7387578A JP 7387578 A JP7387578 A JP 7387578A JP S55664 A JPS55664 A JP S55664A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- oscillator
- output
- pulse
- variable
- 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
- 238000005194 fractionation Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
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
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7387578A JPS55664A (en) | 1978-06-19 | 1978-06-19 | Frequency synthesizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7387578A JPS55664A (en) | 1978-06-19 | 1978-06-19 | Frequency synthesizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55664A true JPS55664A (en) | 1980-01-07 |
Family
ID=13530799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7387578A Pending JPS55664A (en) | 1978-06-19 | 1978-06-19 | Frequency synthesizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55664A (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5784623A (en) * | 1980-11-14 | 1982-05-27 | Fujitsu Ltd | Pll circuit |
JPS57150232A (en) * | 1981-03-12 | 1982-09-17 | Sanyo Electric Co Ltd | Phase synchronizing loop |
WO1993008645A1 (en) * | 1991-10-17 | 1993-04-29 | Shintom Co., Ltd. | Frequency converter, multistage frequency converter, and frequency synthesizer using them |
JPH0637632A (ja) * | 1992-06-15 | 1994-02-10 | Matsushita Electric Ind Co Ltd | 周波数シンセサイザ |
JPH0653828A (ja) * | 1992-06-26 | 1994-02-25 | Matsushita Electric Ind Co Ltd | 分周器 |
-
1978
- 1978-06-19 JP JP7387578A patent/JPS55664A/ja active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5784623A (en) * | 1980-11-14 | 1982-05-27 | Fujitsu Ltd | Pll circuit |
JPS57150232A (en) * | 1981-03-12 | 1982-09-17 | Sanyo Electric Co Ltd | Phase synchronizing loop |
WO1993008645A1 (en) * | 1991-10-17 | 1993-04-29 | Shintom Co., Ltd. | Frequency converter, multistage frequency converter, and frequency synthesizer using them |
US5578968A (en) * | 1991-10-17 | 1996-11-26 | Shinsaku Mori | Frequency converter, multistage frequency converter and frequency synthesizer utilizing them |
JPH0637632A (ja) * | 1992-06-15 | 1994-02-10 | Matsushita Electric Ind Co Ltd | 周波数シンセサイザ |
JPH0653828A (ja) * | 1992-06-26 | 1994-02-25 | Matsushita Electric Ind Co Ltd | 分周器 |
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