MX9804172A - Lazo sintetizador de frecuencia altamente estable con alimentacion de avance. - Google Patents
Lazo sintetizador de frecuencia altamente estable con alimentacion de avance.Info
- Publication number
- MX9804172A MX9804172A MX9804172A MX9804172A MX9804172A MX 9804172 A MX9804172 A MX 9804172A MX 9804172 A MX9804172 A MX 9804172A MX 9804172 A MX9804172 A MX 9804172A MX 9804172 A MX9804172 A MX 9804172A
- Authority
- MX
- Mexico
- Prior art keywords
- controlled oscillator
- voltage controlled
- feedforward
- frequency synthesizer
- synthesizer loop
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
- H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
- H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
- H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a 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
- H03L7/1972—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 reducing the locking time interval
-
- 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
- H03L7/235—Nested phase locked loops
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/0028—Correction of carrier offset at passband only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0053—Closed loops
- H04L2027/0057—Closed loops quadrature phase
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Un lazo sintetizador de frecuencia (200) incluye un primer oscilador de voltaje controlado (201) y un primer circuito divisor (202) para dividir una frecuencia de una señal de salida generada por el primer oscilador de voltaje controlado (201) por un factor de N. El lazo de sintetizador (200) además incluye un circuito detector de fase/frecuencia (203), un circuito de filtro de lazo (204), un circuito sumador (206), un amplificador de alimentacion de avance (205), un segundo oscilador de voltaje controlado (207), y un segundo circuito divisor (208), en donde el segundo circuito divisor (208) divide una segunda señal de salida generada por el segundo oscilador de voltaje controlado (207) por un factor de M, y un microprocesador (210) varía el valor de M para mantener al primer voltaje a la mitad de una escala del segundo oscilador de voltaje controlado (207).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/565,313 US5737694A (en) | 1995-11-30 | 1995-11-30 | Highly stable frequency synthesizer loop with feedforward |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9804172A true MX9804172A (es) | 1998-09-30 |
Family
ID=24258066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9804172A MX9804172A (es) | 1995-11-30 | 1998-05-26 | Lazo sintetizador de frecuencia altamente estable con alimentacion de avance. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5737694A (es) |
EP (1) | EP0900479A1 (es) |
KR (1) | KR19990071777A (es) |
CN (1) | CN1203708A (es) |
AU (1) | AU7679596A (es) |
BR (1) | BR9611620A (es) |
MX (1) | MX9804172A (es) |
PL (1) | PL327330A1 (es) |
WO (1) | WO1997020398A1 (es) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1022852A (ja) * | 1996-07-02 | 1998-01-23 | Nec Corp | 無線通信装置 |
KR100494311B1 (ko) * | 1997-05-06 | 2005-08-10 | 디지털 비디오 시스템스 인코퍼레이션 | 모터의회전유무출력장치 |
US6049254A (en) * | 1997-10-16 | 2000-04-11 | Oasis Design, Inc. | Phase-locked loop which can automatically adjust to and lock upon a variable input frequency |
DE19747735C2 (de) * | 1997-10-29 | 2003-04-30 | Infineon Technologies Ag | Frequenzsynthesizer für ein Mobilfunkendgerät |
US6188716B1 (en) | 1998-03-02 | 2001-02-13 | Pan Atlantic Corporation | Radio and communication method using a transmitted intermediate frequency |
US6192088B1 (en) * | 1998-03-31 | 2001-02-20 | Lucent Technologies Inc. | Carrier recovery system |
US6091303A (en) * | 1999-04-06 | 2000-07-18 | Ericsson Inc. | Method and apparatus for reducing oscillator noise by noise-feedforward |
DE19948745A1 (de) * | 1999-10-09 | 2001-04-12 | Philips Corp Intellectual Pty | Schaltungsanordnung zur Demodulation eines Zwischenfrequenz-Videosignals |
US6693860B1 (en) | 2000-10-20 | 2004-02-17 | Hewlett-Packard Development Company, L.P. | Timing signal recovery by superheterodyne phase locked loop |
US6975686B1 (en) | 2000-10-31 | 2005-12-13 | Telefonaktiebolaget L.M. Ericsson | IQ modulation systems and methods that use separate phase and amplitude signal paths |
NL1017191C2 (nl) * | 2001-01-25 | 2002-07-30 | Univ Delft Tech | Kwadratuurmodulator en -demodulator. |
US7171181B2 (en) * | 2003-08-11 | 2007-01-30 | Schick Technologies, Inc. | Method for achieving immediate and accurate automatic frequency tuning |
US7176738B1 (en) * | 2003-11-20 | 2007-02-13 | Integrated Device Technology, Inc. | Method and apparatus for clock generation |
TWI288531B (en) * | 2004-02-26 | 2007-10-11 | Mediatek Inc | Phase locked loop for generating an output signal |
FR2867926B1 (fr) * | 2004-03-16 | 2006-07-07 | St Microelectronics Sa | Procede et systeme de reception satellitaire |
CN1731680B (zh) * | 2005-08-12 | 2010-04-28 | 曹伟勋 | 一种直接调制压控振荡器的频率调制器和调制方法 |
US7643602B2 (en) * | 2005-09-30 | 2010-01-05 | Freescale Semiconductor, Inc. | Method and system for estimating frequency offsets |
ITMI20071432A1 (it) * | 2007-07-17 | 2009-01-18 | Ducati Energia Spa | Regolatore di tensione per magnetogeneratori a connessione configurabile degli avvolgimenti di fase |
US8867674B2 (en) * | 2009-05-29 | 2014-10-21 | Broadcom Corporation | Scalable satellite receiver system |
CN102281058B (zh) * | 2010-12-10 | 2014-03-12 | 华为技术有限公司 | 确定锁相环pll带宽特性的方法、装置和系统 |
US8842043B2 (en) * | 2011-12-23 | 2014-09-23 | Delphi Technologies, Inc. | Methods to extend the frequency lock range of a received RF signal using a preamble-based frequency estimate |
CN102882518A (zh) * | 2012-10-24 | 2013-01-16 | 四川和芯微电子股份有限公司 | 锁相环系统及锁相环系统的实现方法 |
CN105897298A (zh) * | 2016-06-03 | 2016-08-24 | 北京航空航天大学 | 多级模块化无线收发机实验平台 |
EP3276538B1 (en) * | 2016-07-25 | 2020-01-01 | STMicroelectronics International N.V. | Carrier signal generation circuit for a radio-frequency identification transponder device and method for generating a carrier signal |
CN106911330B (zh) * | 2017-03-03 | 2020-12-15 | 重庆湃芯创智微电子有限公司 | 一种占空比稳定电路 |
US10979277B1 (en) * | 2019-12-31 | 2021-04-13 | Texas Instruments Incorporated | Carrier frequency recovery in a receiver |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4117405A (en) * | 1976-11-02 | 1978-09-26 | Louis Martinez | Narrow-band radio communication system |
US4180783A (en) * | 1977-09-06 | 1979-12-25 | Rca Corporation | Phase lock loop data timing recovery circuit |
US4516083A (en) * | 1982-05-14 | 1985-05-07 | Motorola, Inc. | Fast lock PLL having out of lock detector control of loop filter and divider |
NL8500675A (nl) * | 1985-03-11 | 1986-10-01 | Philips Nv | Am-ontvanger. |
US4755774A (en) * | 1985-07-15 | 1988-07-05 | Motorola Inc. | Two-port synthesizer modulation system employing an improved reference phase modulator |
US4748425A (en) * | 1987-02-18 | 1988-05-31 | Motorola, Inc. | VCO range shift and modulation device |
US4837853A (en) * | 1987-06-05 | 1989-06-06 | Motorola, Inc. | Dual port FM demodulation in phase locked receivers |
DE3721154A1 (de) * | 1987-06-26 | 1989-01-05 | Wegmann & Co | Frequenzsynthesizer |
US4743867A (en) * | 1987-08-03 | 1988-05-10 | Motorola, Inc. | Compensation circuitry for dual port phase-locked loops |
US4864252A (en) * | 1988-09-26 | 1989-09-05 | Motorola, Inc. | Sample-and-hold phase detector for use in a phase locked loop |
US5109531A (en) * | 1989-02-28 | 1992-04-28 | Motorola, Inc. | Sideband receiver with pilot lock |
FI895068A0 (fi) * | 1989-10-25 | 1989-10-25 | Telenokia Oy | Frekvenssyntetisator. |
US5079526A (en) * | 1990-08-29 | 1992-01-07 | Motorola, Inc. | Frequency modulated synthesizer using low frequency offset mixed VCO |
US5329250A (en) * | 1992-02-25 | 1994-07-12 | Sanyo Electric Co., Ltd. | Double phase locked loop circuit |
US5392003A (en) * | 1993-08-09 | 1995-02-21 | Motorola, Inc. | Wide tuning range operational transconductance amplifiers |
-
1995
- 1995-11-30 US US08/565,313 patent/US5737694A/en not_active Expired - Lifetime
-
1996
- 1996-11-14 AU AU76795/96A patent/AU7679596A/en not_active Abandoned
- 1996-11-14 CN CN96198714A patent/CN1203708A/zh active Pending
- 1996-11-14 WO PCT/US1996/018214 patent/WO1997020398A1/en not_active Application Discontinuation
- 1996-11-14 BR BR9611620A patent/BR9611620A/pt unknown
- 1996-11-14 EP EP96939692A patent/EP0900479A1/en not_active Withdrawn
- 1996-11-14 PL PL96327330A patent/PL327330A1/xx unknown
- 1996-11-14 KR KR1019980704055A patent/KR19990071777A/ko not_active Application Discontinuation
-
1998
- 1998-05-26 MX MX9804172A patent/MX9804172A/es unknown
Also Published As
Publication number | Publication date |
---|---|
CN1203708A (zh) | 1998-12-30 |
EP0900479A4 (es) | 1999-03-10 |
PL327330A1 (en) | 1998-12-07 |
US5737694A (en) | 1998-04-07 |
BR9611620A (pt) | 1999-03-30 |
AU7679596A (en) | 1997-06-19 |
EP0900479A1 (en) | 1999-03-10 |
WO1997020398A1 (en) | 1997-06-05 |
KR19990071777A (ko) | 1999-09-27 |
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