KR970013772A - 주파수 합성기 - Google Patents
주파수 합성기 Download PDFInfo
- Publication number
- KR970013772A KR970013772A KR1019960032488A KR19960032488A KR970013772A KR 970013772 A KR970013772 A KR 970013772A KR 1019960032488 A KR1019960032488 A KR 1019960032488A KR 19960032488 A KR19960032488 A KR 19960032488A KR 970013772 A KR970013772 A KR 970013772A
- Authority
- KR
- South Korea
- Prior art keywords
- frequency
- phase error
- phase
- integrator
- output
- Prior art date
Links
- 238000009499 grossing Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000010586 diagram Methods 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
-
- 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
- H03L7/1976—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 using a phase accumulator for controlling the counter or frequency divider
-
- 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
- H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
- H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (3)
- 수정 발진기와, 상기 수정 발진기의 출력을 분주하여 기준 주파수로서 출력하는 고정 분주기와, 전압 제어 발진기와, 상기 전압 제어 발진기의 출력을 분주수 발생 수단이 부여하는 분주수로서 분주하는 가변 분주기와, 기준 주파수와 가변 분주기의 출력의 위상차를 검출하여 출력하는 위상 비교기와, 상기 위상 비교기로부터 출력되는 위상차 신호를 평활화하여 상기 전압 제어 발진기를 제어하는 신호로서 출력하는 루프 필터와, 상기 가변 분주기에 정수의 분주수를 부여하여 제어하는 분주수 발생 수단을 구비하고, 상기 루프 필터의 출력으로 전압 제어 발진기를 제어하여 위상동기 루프를 구성하는 주파수 합성기에 있어서, 상기 분주수 발생 수단은 종속 접속된 n단(n=1, 2, 3···)의 적분기와 그 캐리아웃 신호를 미분하는 n-1개의 미분기를 구비하고, 상기 가변 분주기에서 발생하는 위상오차를 분주수 발생 수단의 최종단의 적분기에 포함되는 가산기의 출력에서 구하여 위상 오차 보상값을 출력하도록구성되고, 또한 상기 분주수 발생 수단으로부터 출력되는 위상 오차 보상값에 기초하여 위상 오차를 보상하기 위한신호의 펄스폭을 변화시켜 위상 오차 보상을 행하는 위상 오차 보상 수단을 구비하는 것을 특징으로 하는 주파수 합성기.
- 제1항에 있어서, 상기 주파수 합성기에 배치하는 주파수 발생 수단은 적븐기 및 미분기와 1개의 가산기로 구성되며, 각 적분기는 n단까지 종속으로 접속되어 있고 i단째 적분기의 캐리아웃 신호는 (i-1)계 미분을 행하며, 각 미분기 출력은 모두 가산기에 입력되어, 분주수의 정수부분과의 합을 취하여 가변 분주기의 분주수로서 입력되고, 또 n단째 적분기의 적분 결과를 (n-1)계 미분함으로써 위상 오차 보상값을 추출하여 위상 오차 보상 수단에 입력하는 것을 특징으로 하는 주파수 합성기.
- 제1항에 있어서, 상기 주파수 합성기의 위상 오차 보상 수단에서 고정 분주기가 카운트한 값에 따라 전류원 혹은 전압원의 동작, 비동작을 전환함으로써 위상 오차를 보상하기 위한 신호의 펄스폭을 변화시켜 위상 오차를 보상하는 것을 특징으로 하는 주파수 합성기.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP95-202269 | 1995-08-08 | ||
JP20226995A JP3319677B2 (ja) | 1995-08-08 | 1995-08-08 | 周波数シンセサイザ |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970013772A true KR970013772A (ko) | 1997-03-29 |
KR100237539B1 KR100237539B1 (ko) | 2000-01-15 |
Family
ID=16454750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960032488A KR100237539B1 (ko) | 1995-08-08 | 1996-08-03 | 주파수 합성기 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5847611A (ko) |
EP (1) | EP0758166B1 (ko) |
JP (1) | JP3319677B2 (ko) |
KR (1) | KR100237539B1 (ko) |
CN (1) | CN1139187C (ko) |
CA (1) | CA2182248A1 (ko) |
DE (1) | DE69635573T2 (ko) |
NO (1) | NO963235L (ko) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3784485B2 (ja) * | 1997-02-12 | 2006-06-14 | 富士通株式会社 | 出力パルス幅制御システム |
US6141394A (en) * | 1997-12-22 | 2000-10-31 | Philips Electronics North America Corporation | Fractional-N frequency synthesizer with jitter compensation |
JPH11225072A (ja) * | 1998-02-05 | 1999-08-17 | Fujitsu Ltd | スプリアス抑制装置、スプリアス抑制方法およびフラクショナルnシンセサイザ |
US6130561A (en) * | 1998-12-28 | 2000-10-10 | Philips Electronics North America Corporation | Method and apparatus for performing fractional division charge compensation in a frequency synthesizer |
DE19947095A1 (de) * | 1999-09-30 | 2001-05-03 | Siemens Ag | Vorrichtung zur Synchronisierung des Rahmentaktes in Einheiten/Knoten datenübertragender Systeme |
JP4198303B2 (ja) * | 2000-06-15 | 2008-12-17 | 富士通マイクロエレクトロニクス株式会社 | Fractional−NPLL周波数シンセサイザの位相誤差除去方法及びFractional−NPLL周波数シンセサイザ |
FR2811166B1 (fr) * | 2000-06-30 | 2005-01-28 | Cit Alcatel | Procede et dispositif de synthese de frequence au moyen d'une boucle a phase asservie |
JP2002027282A (ja) * | 2000-07-10 | 2002-01-25 | Matsushita Electric Ind Co Ltd | 同期分離回路 |
JP2002217723A (ja) * | 2001-01-23 | 2002-08-02 | Mitsubishi Electric Corp | 小数点分周方式pll周波数シンセサイザ |
KR20010069610A (ko) * | 2001-04-20 | 2001-07-25 | 유흥균 | 고속 저전력 직접 디지털 주파수 합성기 구동형 위상 고정루프(DDFS-driven PLL) 주파수 합성기 설계 기술 |
US6693468B2 (en) * | 2001-06-12 | 2004-02-17 | Rf Micro Devices, Inc. | Fractional-N synthesizer with improved noise performance |
JP4493887B2 (ja) * | 2001-08-03 | 2010-06-30 | セイコーNpc株式会社 | フラクショナルn周波数シンセサイザ及びその動作方法 |
US6946884B2 (en) * | 2002-04-25 | 2005-09-20 | Agere Systems Inc. | Fractional-N baseband frequency synthesizer in bluetooth applications |
KR100468734B1 (ko) * | 2002-06-11 | 2005-01-29 | 삼성전자주식회사 | 노이즈를 감소시키기 위한 주파수 합성 회로 |
US7187241B2 (en) * | 2003-05-02 | 2007-03-06 | Silicon Laboratories Inc. | Calibration of oscillator devices |
US7436227B2 (en) * | 2003-05-02 | 2008-10-14 | Silicon Laboratories Inc. | Dual loop architecture useful for a programmable clock source and clock multiplier applications |
US7288998B2 (en) * | 2003-05-02 | 2007-10-30 | Silicon Laboratories Inc. | Voltage controlled clock synthesizer |
US7295077B2 (en) * | 2003-05-02 | 2007-11-13 | Silicon Laboratories Inc. | Multi-frequency clock synthesizer |
US7064617B2 (en) * | 2003-05-02 | 2006-06-20 | Silicon Laboratories Inc. | Method and apparatus for temperature compensation |
US7068110B2 (en) * | 2004-06-28 | 2006-06-27 | Silicon Laboratories Inc. | Phase error cancellation |
US7983922B2 (en) * | 2005-04-15 | 2011-07-19 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing |
JP4855129B2 (ja) * | 2006-04-26 | 2012-01-18 | ルネサスエレクトロニクス株式会社 | デジタル放送受信装置およびデジタル放送システム |
JP2011151473A (ja) * | 2010-01-19 | 2011-08-04 | Panasonic Corp | 角度変調器、送信装置及び無線通信装置 |
CN103067001B (zh) * | 2011-10-24 | 2016-03-02 | 中国科学院微电子研究所 | 高效率射频电源的相位同步电路 |
US8618841B1 (en) | 2012-10-30 | 2013-12-31 | Hittite Microwave Corporation | Method for reducing spurious for a clock distribution system |
US9531358B2 (en) * | 2014-10-27 | 2016-12-27 | Mediatek Inc. | Signal generating system and signal generating method |
EP3243277B1 (en) * | 2015-01-05 | 2022-07-20 | Telefonaktiebolaget LM Ericsson (publ) | Method and radio network node for compensation for local oscillator pulling or pushing |
CN104990616B (zh) * | 2015-06-26 | 2018-01-19 | 广州能源检测研究院 | 基于级联自适应陷波器的多路不同步脉冲计数补偿方法 |
CN107911103B (zh) * | 2017-12-04 | 2020-12-18 | 中国电子科技集团公司第四十一研究所 | 一种采用全分频的1MHz-6GHz信号产生电路及方法 |
Family Cites Families (7)
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GB2026268B (en) * | 1978-07-22 | 1982-07-28 | Racal Communcations Equipment | Frequency synthesizers |
GB2228840B (en) * | 1989-03-04 | 1993-02-10 | Racal Dana Instr Ltd | Frequency synthesisers |
US5180993A (en) * | 1990-01-15 | 1993-01-19 | Telefonaktiebolaget L M Ericsson | Method and arrangement for frequency synthesis |
US5093632A (en) * | 1990-08-31 | 1992-03-03 | Motorola, Inc. | Latched accumulator fractional n synthesis with residual error reduction |
US5256981A (en) * | 1992-02-27 | 1993-10-26 | Hughes Aircraft Company | Digital error corrected fractional-N synthesizer and method |
JP2666682B2 (ja) * | 1993-05-28 | 1997-10-22 | 日本電気株式会社 | Pll回路 |
US5495206A (en) * | 1993-10-29 | 1996-02-27 | Motorola, Inc. | Fractional N frequency synthesis with residual error correction and method thereof |
-
1995
- 1995-08-08 JP JP20226995A patent/JP3319677B2/ja not_active Expired - Fee Related
-
1996
- 1996-07-29 CA CA002182248A patent/CA2182248A1/en not_active Abandoned
- 1996-08-02 NO NO963235A patent/NO963235L/no not_active Application Discontinuation
- 1996-08-03 KR KR1019960032488A patent/KR100237539B1/ko not_active IP Right Cessation
- 1996-08-05 CN CNB961132825A patent/CN1139187C/zh not_active Expired - Fee Related
- 1996-08-06 DE DE69635573T patent/DE69635573T2/de not_active Expired - Fee Related
- 1996-08-06 EP EP96112674A patent/EP0758166B1/en not_active Expired - Lifetime
-
1997
- 1997-10-10 US US08/948,022 patent/US5847611A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NO963235D0 (no) | 1996-08-02 |
DE69635573T2 (de) | 2006-10-26 |
CA2182248A1 (en) | 1997-02-09 |
DE69635573D1 (de) | 2006-01-19 |
NO963235L (no) | 1997-02-10 |
CN1151637A (zh) | 1997-06-11 |
KR100237539B1 (ko) | 2000-01-15 |
EP0758166B1 (en) | 2005-12-14 |
CN1139187C (zh) | 2004-02-18 |
JPH0951268A (ja) | 1997-02-18 |
US5847611A (en) | 1998-12-08 |
EP0758166A1 (en) | 1997-02-12 |
JP3319677B2 (ja) | 2002-09-03 |
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