RU2008102447A - FREQUENCY SYNTHESIZER WITH REDUCED PHASE NOISE LEVEL - Google Patents
FREQUENCY SYNTHESIZER WITH REDUCED PHASE NOISE LEVEL Download PDFInfo
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- RU2008102447A RU2008102447A RU2008102447/09A RU2008102447A RU2008102447A RU 2008102447 A RU2008102447 A RU 2008102447A RU 2008102447/09 A RU2008102447/09 A RU 2008102447/09A RU 2008102447 A RU2008102447 A RU 2008102447A RU 2008102447 A RU2008102447 A RU 2008102447A
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- RU
- Russia
- Prior art keywords
- output
- input
- additional
- frequency divider
- pump circuit
- Prior art date
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- 239000003990 capacitor Substances 0.000 claims abstract 2
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- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Синтезатор частоты с пониженным уровнем фазовых шумов, содержащий петлю фазовой автоподстройки частоты, в которую входят управляемый генератор, делитель частоты управляемого генератора, фазовый детектор, схема накачки, фильтр низких частот, опорный генератор, делитель частоты опорного генератора, отличающийся тем, что в устройство введены аналогичные по параметрам дополнительный фазовый детектор, один вход которого соединен с выходом делителя частоты управляемого генератора, а другой вход соединен с выходом делителя частоты опорного генератора, а выход соединен со входом дополнительной схемы накачки, дополнительная схема накачки, вход которой соединен с выходом дополнительного фазового детектора, а выход соединен со входом дополнительного фильтра низкой частоты, дополнительный фильтр низкой частоты, вход которого соединен с выходом дополнительной схемы накачки, а выход соединен со входом логической схемы управления, логическая схема управления, вход которой соединен с выходом дополнительного фильтра низкой частоты, а выход соединен с ключами переключения контурных конденсаторов управляемого генератора.A frequency synthesizer with a reduced phase noise level, comprising a phase locked loop, which includes a controlled oscillator, a frequency divider of a controlled oscillator, a phase detector, a pump circuit, a low-pass filter, a reference oscillator, a frequency divider of the reference oscillator, characterized in that additional phase detector similar in parameters, one input of which is connected to the output of the frequency divider of the controlled generator, and the other input is connected to the output of the frequency divider of the reference generator, and the output is connected to the input of the additional pump circuit, an additional pump circuit, the input of which is connected to the output of the additional phase detector, and the output is connected to the input of the additional low-pass filter, an additional low-frequency filter, the input of which is connected to the output of the additional pump circuit, and the output connected to the input of the control logic circuit, the control logic circuit, the input of which is connected to the output of the additional low-pass filter, and the output is connected to the switching keys capacitors of a controlled generator.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008102447/09A RU2370885C1 (en) | 2008-01-28 | 2008-01-28 | Frequency synthesiser with lower level of phase noises |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008102447/09A RU2370885C1 (en) | 2008-01-28 | 2008-01-28 | Frequency synthesiser with lower level of phase noises |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008102447A true RU2008102447A (en) | 2009-08-10 |
| RU2370885C1 RU2370885C1 (en) | 2009-10-20 |
Family
ID=41048857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008102447/09A RU2370885C1 (en) | 2008-01-28 | 2008-01-28 | Frequency synthesiser with lower level of phase noises |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2370885C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2467475C1 (en) * | 2011-10-13 | 2012-11-20 | Государственное унитарное предприятие города Москвы Научно-производственный центр "СПУРТ" | Low phase noise frequency synthesiser patent |
| RU186351U1 (en) * | 2017-10-30 | 2019-01-16 | Федеральное государственное бюджетное образовательное учреждение образования "Владимирский Государственный Университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) | SIGNAL SHAPER WITH PHASE DISTORTION AUTOMATIC COMPENSATOR AND COMBINED CONTROL |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61294936A (en) * | 1985-06-21 | 1986-12-25 | Nec Corp | Synthesizer |
| WO1993005578A1 (en) * | 1991-08-30 | 1993-03-18 | Fujitsu Limited | Frequency synthesizer |
| JP2616582B2 (en) * | 1994-05-09 | 1997-06-04 | 日本電気株式会社 | PLL frequency synthesizer |
| MX9706979A (en) * | 1995-03-16 | 1997-12-31 | Qualcomm Inc | FREQUENCY SYNTHESIZER PLL EXCITED BY DIRECT DIGITAL SYNTHESIZER WITH CLEANING PLL. |
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2008
- 2008-01-28 RU RU2008102447/09A patent/RU2370885C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2370885C1 (en) | 2009-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20110129 |