MX167689B - Sintesis fraccional de n/m - Google Patents
Sintesis fraccional de n/mInfo
- Publication number
- MX167689B MX167689B MX025591A MX2559191A MX167689B MX 167689 B MX167689 B MX 167689B MX 025591 A MX025591 A MX 025591A MX 2559191 A MX2559191 A MX 2559191A MX 167689 B MX167689 B MX 167689B
- Authority
- MX
- Mexico
- Prior art keywords
- frequency
- elements
- signal
- divided
- coupled
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 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
- H03L7/183—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
-
- 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
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/20—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
- H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
La presente invención se refiere a un sintetizador de frecuencia que asegura en fase una señal de salida de un oscilador de frecuencia variable, con una señal de referencia, caracterizado el sintetizador de frecuencia por: elementos, acoplados con el oscilador de frecuencia variable, para dividir la frecuencia de la señal de salida, para producir una señal de frecuencia dividida; elementos, acoplados con los elementos para dividir, para multiplicar la frecuencia de la señal de frecuencia dividida, para producir una señal de frecuencia dividida y multiplicada; y, elementos, acoplados con los elementos para multiplicar la frecuencia, para comparar la fase de la señal de frecuencia dividida y multiplicada, con la fase de la señal de referencia.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/516,897 US5055800A (en) | 1990-04-30 | 1990-04-30 | Fractional n/m synthesis |
Publications (1)
Publication Number | Publication Date |
---|---|
MX167689B true MX167689B (es) | 1993-04-05 |
Family
ID=24057536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX025591A MX167689B (es) | 1990-04-30 | 1991-04-30 | Sintesis fraccional de n/m |
Country Status (8)
Country | Link |
---|---|
US (1) | US5055800A (es) |
EP (1) | EP0480018A4 (es) |
JP (1) | JPH04507183A (es) |
AU (1) | AU637237B2 (es) |
BR (1) | BR9105753A (es) |
CA (1) | CA2048646C (es) |
MX (1) | MX167689B (es) |
WO (1) | WO1991017605A1 (es) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5187722A (en) * | 1990-08-13 | 1993-02-16 | At&T Bell Laboratories | Frequency synthesis using fractional frequency multiplication |
US5070310A (en) * | 1990-08-31 | 1991-12-03 | Motorola, Inc. | Multiple latched accumulator fractional N synthesis |
US5093632A (en) * | 1990-08-31 | 1992-03-03 | Motorola, Inc. | Latched accumulator fractional n synthesis with residual error reduction |
US5223755A (en) * | 1990-12-26 | 1993-06-29 | Xerox Corporation | Extended frequency range variable delay locked loop for clock synchronization |
US5111162A (en) * | 1991-05-03 | 1992-05-05 | Motorola, Inc. | Digital frequency synthesizer having AFC and modulation applied to frequency divider |
TW379293B (en) * | 1994-04-01 | 2000-01-11 | Ibm | Apparatus and method for generating a clock in a microprocessor |
US5926515A (en) * | 1995-12-26 | 1999-07-20 | Samsung Electronics Co., Ltd. | Phase locked loop for improving a phase locking time |
US5889436A (en) * | 1996-11-01 | 1999-03-30 | National Semiconductor Corporation | Phase locked loop fractional pulse swallowing frequency synthesizer |
US6100736A (en) * | 1997-06-05 | 2000-08-08 | Cirrus Logic, Inc | Frequency doubler using digital delay lock loop |
SE510523C2 (sv) | 1997-09-11 | 1999-05-31 | Ericsson Telefon Ab L M | Radiokommunikationsenhet och radiotelefon innefattande radiokommunikationsenhet |
US6072843A (en) * | 1998-01-27 | 2000-06-06 | Motorola, Inc. | Method and apparatus for sigma-delta demodulator with aperiodic data |
US6057791A (en) * | 1998-02-18 | 2000-05-02 | Oasis Design, Inc. | Apparatus and method for clocking digital and analog circuits on a common substrate to enhance digital operation and reduce analog sampling error |
US6219397B1 (en) * | 1998-03-20 | 2001-04-17 | Samsung Electronics Co., Ltd. | Low phase noise CMOS fractional-N frequency synthesizer for wireless communications |
DE19819038C2 (de) * | 1998-04-28 | 2002-01-03 | Rohde & Schwarz | Frequenzumsetzeranordnung für Hochfrequenzempfänger oder Hochfrequenzgeneratoren |
US20020089353A1 (en) | 1998-07-13 | 2002-07-11 | Abdellatif Bellaouar | Current mode logic gates for low-voltage high-speed applications |
US6216254B1 (en) | 1998-12-16 | 2001-04-10 | Lsi Logic Corporation | Integrated circuit design using a frequency synthesizer that automatically ensures testability |
US6321074B1 (en) * | 1999-02-18 | 2001-11-20 | Itron, Inc. | Apparatus and method for reducing oscillator frequency pulling during AM modulation |
GB2353154A (en) * | 1999-08-10 | 2001-02-14 | Lucent Technologies Inc | Phase-locked loop circuit adapted to perate both as a digital modulator and as a frequency synthesizer at the same time |
US6681101B1 (en) | 2000-01-11 | 2004-01-20 | Skyworks Solutions, Inc. | RF transmitter with extended efficient power control range |
US6529716B1 (en) | 2000-01-11 | 2003-03-04 | Skyworks Solutions, Inc. | RF transmitter with extended efficient power control range |
US6366174B1 (en) | 2000-02-21 | 2002-04-02 | Lexmark International, Inc. | Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking |
US6278333B1 (en) | 2000-02-29 | 2001-08-21 | Motorola, Inc. | Phase lock loop with dual state charge pump and method of operating the same |
US6747987B1 (en) | 2000-02-29 | 2004-06-08 | Motorola, Inc. | Transmit modulation circuit and method of operating a transmitter |
US6564039B1 (en) | 2000-02-29 | 2003-05-13 | Motorola, Inc. | Frequency generation circuit and method of operating a tranceiver |
US6636086B2 (en) * | 2000-12-08 | 2003-10-21 | Agilent Technologies, Inc. | High performance microwave synthesizer using multiple-modulator fractional-N divider |
US6385276B1 (en) | 2001-06-12 | 2002-05-07 | Rf Micro Devices, Inc. | Dual-modulus prescaler |
US6448831B1 (en) | 2001-06-12 | 2002-09-10 | Rf Micro Devices, Inc. | True single-phase flip-flop |
US7003049B2 (en) * | 2001-06-12 | 2006-02-21 | Rf Micro Devices, Inc. | Fractional-N digital modulation with analog IQ interface |
US6693468B2 (en) | 2001-06-12 | 2004-02-17 | Rf Micro Devices, Inc. | Fractional-N synthesizer with improved noise performance |
US6779010B2 (en) | 2001-06-12 | 2004-08-17 | Rf Micro Devices, Inc. | Accumulator with programmable full-scale range |
US6658043B2 (en) | 2001-10-26 | 2003-12-02 | Lexmark International, Inc. | Method and apparatus for providing multiple spread spectrum clock generator circuits with overlapping output frequencies |
US6710951B1 (en) | 2001-10-31 | 2004-03-23 | Western Digital Technologies, Inc. | Phase locked loop employing a fractional frequency synthesizer as a variable oscillator |
CN1643794A (zh) * | 2002-03-28 | 2005-07-20 | 凯奔研究公司 | 用于分数分频器的相位误差消除电路和方法和含有该相位误差消除电路的电路 |
US6856184B2 (en) * | 2003-01-15 | 2005-02-15 | Agilent Technologies, Inc | Clock divider circuit |
US6833765B2 (en) * | 2003-01-23 | 2004-12-21 | Ess Technology, Inc. | Frequency locked loop with improved stability using binary rate multiplier circuits |
GB0423394D0 (en) * | 2004-10-21 | 2004-11-24 | Eads Astrium Ltd | Improvements in the flexibility of communications satellite payloads |
US7493093B2 (en) * | 2005-04-27 | 2009-02-17 | Skyworks Solutions, Inc. | Switchable power level detector for multi-mode communication device |
US7482885B2 (en) * | 2005-12-29 | 2009-01-27 | Orca Systems, Inc. | Method of frequency synthesis for fast switching |
US7519349B2 (en) * | 2006-02-17 | 2009-04-14 | Orca Systems, Inc. | Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones |
NO324467B1 (no) * | 2006-03-30 | 2007-10-22 | Norspace As | Faselast oscillator |
US7696826B2 (en) * | 2006-12-04 | 2010-04-13 | Skyworks Solutions, Inc. | Temperature compensation of collector-voltage control RF amplifiers |
US7729674B2 (en) * | 2007-01-09 | 2010-06-01 | Skyworks Solutions, Inc. | Multiband or multimode receiver with shared bias circuit |
US7605667B2 (en) * | 2007-04-26 | 2009-10-20 | Mediatek Inc. | Frequency synthesizer with a harmonic locked phase/frequency detector |
US8532583B2 (en) * | 2008-07-17 | 2013-09-10 | Freescale Semiconductor, Inc. | Semiconductor device, wireless communication device and method for generating a synthesized frequency signal |
EP2237423A1 (fr) * | 2009-03-24 | 2010-10-06 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Synthétiseur de fréquence |
TWI431944B (zh) * | 2009-04-10 | 2014-03-21 | Hittite Microwave Corp | 具有降低分數式切換雜訊之分數式n頻率合成器 |
CN101997540B (zh) * | 2009-08-11 | 2012-11-07 | 深圳市英威腾电气股份有限公司 | 一种基于fpga实现的分数分频方法以及分数分频器 |
CN103023489B (zh) * | 2011-09-20 | 2016-04-20 | 杭州轩儒电子科技有限公司 | 小数型锁相回路以及用于降低小数型锁相回路的相位噪声的方法 |
KR102375952B1 (ko) * | 2015-01-22 | 2022-03-17 | 삼성전자주식회사 | 위상 고정 검출 장치 및 검출 방법 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1560233A (en) * | 1977-02-02 | 1980-01-30 | Marconi Co Ltd | Frequency synthesisers |
GB2026268B (en) * | 1978-07-22 | 1982-07-28 | Racal Communcations Equipment | Frequency synthesizers |
DE3015484A1 (de) * | 1980-04-22 | 1981-10-29 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur frequenzstabilisierung eines hochfrequenten freischwingenden oszillators |
US4360788A (en) * | 1980-07-14 | 1982-11-23 | John Fluke Mfg. Co., Inc. | Phase-locked loop frequency synthesizer |
EP0075591A1 (en) * | 1981-04-06 | 1983-04-06 | Motorola, Inc. | Frequency synthesized transceiver |
US4573023A (en) * | 1984-08-07 | 1986-02-25 | John Fluke Mfg. Co., Inc. | Multiple-multiple modulus prescaler for a phase-locked loop |
JPS61163719A (ja) * | 1985-01-14 | 1986-07-24 | Hitachi Denshi Ltd | 周波数シンセサイザ方式 |
JPS62502230A (ja) * | 1985-02-21 | 1987-08-27 | シーメンス プレッシー エレクトロニック システムズ リミテッド | 周波数合成器またはそれに関する改良 |
WO1986005046A1 (en) * | 1985-02-21 | 1986-08-28 | Plessey Overseas Limited | Improvement in or relating to synthesisers |
US4654859A (en) * | 1986-04-09 | 1987-03-31 | Racal Data Communications Inc. | Frequency synthesizer for frequency hopping communication system |
US4810977A (en) * | 1987-12-22 | 1989-03-07 | Hewlett-Packard Company | Frequency modulation in phase-locked loops |
US4864253A (en) * | 1987-12-22 | 1989-09-05 | Siemens Aktiengesellschaft | Phase locked loop wherein phase comparing and filtering are performed by microprocessor |
GB2214012B (en) * | 1987-12-23 | 1992-01-22 | Marconi Instruments Ltd | Frequency or phase modulation |
EP0332087A1 (de) * | 1988-03-09 | 1989-09-13 | Siemens Aktiengesellschaft | Frequenzmodulator |
US4816774A (en) * | 1988-06-03 | 1989-03-28 | Motorola, Inc. | Frequency synthesizer with spur compensation |
-
1990
- 1990-04-30 US US07/516,897 patent/US5055800A/en not_active Expired - Lifetime
-
1991
- 1991-04-22 JP JP3508993A patent/JPH04507183A/ja active Pending
- 1991-04-22 AU AU78581/91A patent/AU637237B2/en not_active Ceased
- 1991-04-22 WO PCT/US1991/002743 patent/WO1991017605A1/en not_active Application Discontinuation
- 1991-04-22 EP EP19910909341 patent/EP0480018A4/en not_active Withdrawn
- 1991-04-22 BR BR919105753A patent/BR9105753A/pt not_active Application Discontinuation
- 1991-04-22 CA CA002048646A patent/CA2048646C/en not_active Expired - Fee Related
- 1991-04-30 MX MX025591A patent/MX167689B/es unknown
Also Published As
Publication number | Publication date |
---|---|
EP0480018A1 (en) | 1992-04-15 |
US5055800A (en) | 1991-10-08 |
EP0480018A4 (en) | 1992-09-16 |
AU637237B2 (en) | 1993-05-20 |
JPH04507183A (ja) | 1992-12-10 |
WO1991017605A1 (en) | 1991-11-14 |
BR9105753A (pt) | 1992-08-04 |
CA2048646C (en) | 1995-07-04 |
AU7858191A (en) | 1991-11-27 |
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