JPH07297713A - 周波数シンセサイザ - Google Patents
周波数シンセサイザInfo
- Publication number
- JPH07297713A JPH07297713A JP6092557A JP9255794A JPH07297713A JP H07297713 A JPH07297713 A JP H07297713A JP 6092557 A JP6092557 A JP 6092557A JP 9255794 A JP9255794 A JP 9255794A JP H07297713 A JPH07297713 A JP H07297713A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- division ratio
- dividers
- frequency division
- 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
- 230000010355 oscillation Effects 0.000 abstract description 20
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 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
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
- H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
- H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
-
- 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 (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6092557A JPH07297713A (ja) | 1994-04-28 | 1994-04-28 | 周波数シンセサイザ |
GB9508511A GB2288931B (en) | 1994-04-28 | 1995-04-26 | Frequency synthesizer |
KR1019950010085A KR100343078B1 (ko) | 1994-04-28 | 1995-04-27 | 주파수신세사이저 |
CN95104195A CN1099763C (zh) | 1994-04-28 | 1995-04-28 | 频率合成器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6092557A JPH07297713A (ja) | 1994-04-28 | 1994-04-28 | 周波数シンセサイザ |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH07297713A true JPH07297713A (ja) | 1995-11-10 |
Family
ID=14057725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6092557A Pending JPH07297713A (ja) | 1994-04-28 | 1994-04-28 | 周波数シンセサイザ |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH07297713A (ko) |
KR (1) | KR100343078B1 (ko) |
CN (1) | CN1099763C (ko) |
GB (1) | GB2288931B (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816656A1 (de) * | 1998-04-15 | 1999-11-04 | Suedwestfunk Anstalt Des Oeffe | Präzisionsfrequenzteiler |
WO2000045515A1 (fr) * | 1999-01-29 | 2000-08-03 | Sanyo Electric Co., Ltd. | Appareil a boucle a phase asservie (pll) et dispositif de repartition en frequence variable |
JP2010251869A (ja) * | 2009-04-10 | 2010-11-04 | Fujitsu Ltd | 半導体装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9019016B2 (en) * | 2011-05-18 | 2015-04-28 | Asahi Kasei Microdevices Corporation | Accumulator-type fractional N-PLL synthesizer and control method thereof |
GB2580631B (en) * | 2019-01-17 | 2022-04-27 | Cml Microcircuits Uk Ltd | Phase-locked loop circuitry |
-
1994
- 1994-04-28 JP JP6092557A patent/JPH07297713A/ja active Pending
-
1995
- 1995-04-26 GB GB9508511A patent/GB2288931B/en not_active Expired - Fee Related
- 1995-04-27 KR KR1019950010085A patent/KR100343078B1/ko not_active IP Right Cessation
- 1995-04-28 CN CN95104195A patent/CN1099763C/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816656A1 (de) * | 1998-04-15 | 1999-11-04 | Suedwestfunk Anstalt Des Oeffe | Präzisionsfrequenzteiler |
DE19816656C2 (de) * | 1998-04-15 | 2000-08-10 | Suedwestrundfunk Anstalt Des O | Verfahren zum Erzeugen von Frequenzen |
WO2000045515A1 (fr) * | 1999-01-29 | 2000-08-03 | Sanyo Electric Co., Ltd. | Appareil a boucle a phase asservie (pll) et dispositif de repartition en frequence variable |
US6522183B2 (en) | 1999-01-29 | 2003-02-18 | Sanyo Electric Co., Ltd. | PLL device and programmable frequency-division device |
JP2010251869A (ja) * | 2009-04-10 | 2010-11-04 | Fujitsu Ltd | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1099763C (zh) | 2003-01-22 |
KR950035076A (ko) | 1995-12-30 |
GB2288931A (en) | 1995-11-01 |
GB2288931B (en) | 1998-09-23 |
GB9508511D0 (en) | 1995-06-14 |
KR100343078B1 (ko) | 2002-12-16 |
CN1113053A (zh) | 1995-12-06 |
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