ES2060726T3 - Microprocesador con un oscilador-rc integrado con frecuencia programable. - Google Patents

Microprocesador con un oscilador-rc integrado con frecuencia programable.

Info

Publication number
ES2060726T3
ES2060726T3 ES89121534T ES89121534T ES2060726T3 ES 2060726 T3 ES2060726 T3 ES 2060726T3 ES 89121534 T ES89121534 T ES 89121534T ES 89121534 T ES89121534 T ES 89121534T ES 2060726 T3 ES2060726 T3 ES 2060726T3
Authority
ES
Spain
Prior art keywords
frequency
oscillator
determining
clock generator
clock
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.)
Expired - Lifetime
Application number
ES89121534T
Other languages
English (en)
Inventor
Udo Dipl-Ing Moller
Martin Dipl-Ing Renner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2060726T3 publication Critical patent/ES2060726T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/10—Tuning of a resonator by means of digitally controlled capacitor bank

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microcomputers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

SE TRATA DE UN MICROORDENADOR INTEGRADO MONOLITICAMENTE, INDEXADO CON UNA INDEXACION DEL PROCESADOR QUE POSEE UNA UNIDAD CENTRAL DE PROCESAMIENTO Y, AL MENOS, UNA UNIDAD FUNCIONAL QUE TRABAJA ASINCRONICAMENTE A LA INDEXACION DEL PROCESADOR Y QUE ESTA DIRIGIDA MEDIANTE UN GENERADOR DE INDEXACION SINCRONIZABLE A TRAVES DE SEÑALES EXTERNAS, EN DONDE EL GENERADOR DE INDEXACION ESTA REALIZADO CON FORMA DE OSCILADOR RC. SE PROPONE QUE LA RESISTENCIA Y LA CAPACIDAD DETERMINANTES DE LA FRECUENCIA DEL OSCILADOR RC SE INTEGREN MONOLITICAMENTE DE TAL MODO QUE LA CAPACIDAD DETERMINANTE DE FRECUENCIA SE REALIZA A PARTIR DE UN GRAN NUMERO DE CAPACIDADES CONECTABLES QUE SE INTERCONECTAN A UNA CAPACIDAD TOTAL DE MAGNITUD VARIABLE Y QUE EL AJUSTE DE FRECUENCIA DEL GENERADOR DE INDEXACION SE LLEVA A CABO MEDIANTE LA EXCITACION DE LOS CORRESPONDIENTES REGISTROS QUE PREFIJAN EL ESTADO DE CONEXION DE LAS CAPACIDADES CONECTABLES A TRAVES DE LA UNIDAD CENTRAL DE PROCESAMIENTO. SE PROPONE QUE LA INDEXACION DEL PROCESADOR SIRVA COMO REFERENCIA PARA EL AJUSTE DE FRECUENCIA DEL GENERADOR DE INDEXACION.
ES89121534T 1989-11-21 1989-11-21 Microprocesador con un oscilador-rc integrado con frecuencia programable. Expired - Lifetime ES2060726T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89121534A EP0428774B1 (de) 1989-11-21 1989-11-21 Mikrocomputer mit einem intergrierten RC-Oszillator mit programmierbarer Frequenz

Publications (1)

Publication Number Publication Date
ES2060726T3 true ES2060726T3 (es) 1994-12-01

Family

ID=8202147

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89121534T Expired - Lifetime ES2060726T3 (es) 1989-11-21 1989-11-21 Microprocesador con un oscilador-rc integrado con frecuencia programable.

Country Status (5)

Country Link
US (1) US5084685A (es)
EP (1) EP0428774B1 (es)
AT (1) ATE112077T1 (es)
DE (1) DE58908421D1 (es)
ES (1) ES2060726T3 (es)

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JP2945545B2 (ja) * 1992-04-02 1999-09-06 三菱電機株式会社 Ｐｌｌ回路装置および位相差検出回路装置
DE4221304C1 (es) * 1992-06-29 1993-09-16 Siemens Audiologische Technik Gmbh, 91058 Erlangen, De
EP0691756A1 (de) * 1994-07-07 1996-01-10 Siemens-Albis Aktiengesellschaft Echokompensator mit analogen Grobkompensator und digitalem Feinkompensator
FR2726921B1 (fr) * 1994-11-16 1997-04-25 Ela Medical Sa Procede d'ajustage d'un parametre electrique d'un dispositif electronique, notamment d'un stimulateur ou d'un defibrillateur cardiaque, et dispositif le mettant en oeuvre
US5699024A (en) * 1996-05-06 1997-12-16 Delco Electronics Corporation Accurate integrated oscillator circuit
US5670915A (en) * 1996-05-24 1997-09-23 Microchip Technology Incorporated Accurate RC oscillator having peak - to - peak voltage control
US6104257A (en) * 1997-12-22 2000-08-15 Cypress Semiconductor Corp. Crystal oscillator with eprom-controlled frequency trim
US6194973B1 (en) 1998-05-29 2001-02-27 Intel Corporation Oscillator with automatic gain control
US6094105A (en) * 1998-05-29 2000-07-25 Intel Corporation Oscillator with digital frequency control
FR2788647B1 (fr) * 1999-01-18 2001-03-30 Cit Alcatel Alimentation de puissance pour terminal de radiocommunication
US6239665B1 (en) 1999-11-02 2001-05-29 International Business Machines Corporation Method and apparatus for switching in metal insulator metal capacitors and fet tuning capacitors for low noise oscillators
US6512419B1 (en) * 2001-03-19 2003-01-28 Cisco Sytems Wireless Networking (Australia) Pty Limited Method and apparatus to tune and calibrate an on-chip oscillator in a wireless transceiver chip
US6747522B2 (en) * 2002-05-03 2004-06-08 Silicon Laboratories, Inc. Digitally controlled crystal oscillator with integrated coarse and fine control
KR100893060B1 (ko) * 2002-08-06 2009-04-15 매그나칩 반도체 유한회사 Ｒｃ 오실레이터
US6917658B2 (en) * 2002-09-16 2005-07-12 Silicon Labs Cp, Inc. Clock recovery method for bursty communications
CN100374978C (zh) * 2003-02-07 2008-03-12 Nxp子股份有限公司 通过数据线校准时钟发生器单元的时钟频率的系统和方法
US7961059B1 (en) 2005-06-30 2011-06-14 Cypress Semiconductor Corporation Phase lock loop control system and method with non-consecutive feedback divide values
US7813411B1 (en) 2005-06-30 2010-10-12 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with high order accumulation for frequency profile generation
US7741918B1 (en) 2005-06-30 2010-06-22 Cypress Semiconductor Corporation System and method for an enhanced noise shaping for spread spectrum modulation
US7912109B1 (en) 2005-06-30 2011-03-22 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer with first order accumulation for frequency profile generation
US8174326B1 (en) 2005-06-30 2012-05-08 Cypress Semiconductor Corporation Phase lock loop control error selection system and method
US7932787B1 (en) 2005-06-30 2011-04-26 Cypress Semiconductor Corporation Phase lock loop control system and method
US7948327B1 (en) 2005-06-30 2011-05-24 Cypress Semiconductor Corporation Simplified phase lock loop control model system and method
US8072277B1 (en) 2005-06-30 2011-12-06 Cypress Semiconductor Corporation Spread spectrum frequency synthesizer
DE102005041759A1 (de) * 2005-09-02 2007-09-06 Pepperl + Fuchs Gmbh Oszillatorschaltung sowie Verfahren zur Beeinflussung, Steuerung oder Regelung der Frequenz eines Oszillators
EP1793301A1 (en) * 2005-11-30 2007-06-06 Thomson Licensing Method and apparatus for providing a stable clock signal
US8035455B1 (en) 2005-12-21 2011-10-11 Cypress Semiconductor Corporation Oscillator amplitude control network
US7532079B2 (en) * 2007-06-18 2009-05-12 Nanoamp Solutions, Inc. (Cayman) Digital tuning of crystal oscillators
US7639092B2 (en) * 2007-08-10 2009-12-29 Nanoamp Solutions Inc. (Cayman) Crystal oscillator frequency tuning circuit
WO2009043017A1 (en) * 2007-09-27 2009-04-02 Nanoamp Solutions, Inc. (Cayman) A transmitter for multiple standards
US9503017B1 (en) 2009-09-29 2016-11-22 Qorvo Us, Inc. Infrastructure-grade integrated voltage controlled oscillator (VCO) with linear tuning characteristics and low phase noise
EP2442480B1 (en) 2010-10-14 2013-05-29 Nxp B.V. Communications device with adaptive clock frequency
WO2012095041A2 (zh) * 2012-02-17 2012-07-19 华为技术有限公司 倍频器和产生倍频信号的方法
EP2698919A1 (en) * 2012-08-14 2014-02-19 Sequans Communications Integrated circuit
US10305425B2 (en) 2017-10-30 2019-05-28 Hong Kong Applied Science and Technology Research Institute Company, Limited RC oscillator that uses thermometer codes to select a sub-array and binary codes to select capacitors or resistors within a sub-array for linear and monotonic tuning
CN116647210B (zh) * 2023-07-25 2024-05-17 深圳飞骧科技股份有限公司 时钟信号控制模组及射频前端模组

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895315A (en) * 1974-01-14 1975-07-15 Beckman Instruments Inc Voltage variable operational amplifier relaxation oscillator
AU577329B2 (en) * 1983-11-07 1988-09-22 Motorola, Inc. Synthesized clock microcomputer with power saving
JPH0752838B2 (ja) * 1985-03-20 1995-06-05 株式会社日立製作所 集積回路
US4652837A (en) * 1985-11-15 1987-03-24 Texas Instruments Incorporated Integrated circuit oscillator
JPS62200804A (ja) * 1986-02-27 1987-09-04 Ricoh Co Ltd プログラム可能なアナログ量素子をもつ半導体集積回路装置
US4723114A (en) * 1986-07-07 1988-02-02 Texas Instruments Incorporated Method and circuit for trimming the frequency of an oscillator
DE3871425D1 (de) * 1987-04-13 1992-07-02 Siemens Ag Integrierte schaltungsanordnung zur ueberwachung eines mitintegrierten oszillators.
US4868525A (en) * 1988-09-23 1989-09-19 Dallas Semiconductor Corporation Temperature-stabilized oscillator

Also Published As

Publication number Publication date
EP0428774A1 (de) 1991-05-29
EP0428774B1 (de) 1994-09-21
US5084685A (en) 1992-01-28
ATE112077T1 (de) 1994-10-15
DE58908421D1 (de) 1994-10-27

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