DE69016308T2 - Direkter digitaler Frequenzsynthetisierer. - Google Patents

Direkter digitaler Frequenzsynthetisierer.

Info

Publication number
DE69016308T2
DE69016308T2 DE69016308T DE69016308T DE69016308T2 DE 69016308 T2 DE69016308 T2 DE 69016308T2 DE 69016308 T DE69016308 T DE 69016308T DE 69016308 T DE69016308 T DE 69016308T DE 69016308 T2 DE69016308 T2 DE 69016308T2
Authority
DE
Germany
Prior art keywords
frequency synthesizer
direct digital
digital frequency
direct
synthesizer
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 - Fee Related
Application number
DE69016308T
Other languages
English (en)
Other versions
DE69016308D1 (de
Inventor
Bjorn Erik Bjerede
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.)
Engility LLC
Original Assignee
Titan Corp
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 Titan Corp filed Critical Titan Corp
Application granted granted Critical
Publication of DE69016308D1 publication Critical patent/DE69016308D1/de
Publication of DE69016308T2 publication Critical patent/DE69016308T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06F1/02—Digital function generators
    • G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/902—Spectral purity improvement for digital function generators by adding a dither signal, e.g. noise
DE69016308T 1989-08-25 1990-08-15 Direkter digitaler Frequenzsynthetisierer. Expired - Fee Related DE69016308T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/398,735 US5073869A (en) 1989-08-25 1989-08-25 Suppression of spurious frequency components in direct digital frequency synthesizer

Publications (2)

Publication Number Publication Date
DE69016308D1 DE69016308D1 (de) 1995-03-09
DE69016308T2 true DE69016308T2 (de) 1995-05-24

Family

ID=23576590

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69016308T Expired - Fee Related DE69016308T2 (de) 1989-08-25 1990-08-15 Direkter digitaler Frequenzsynthetisierer.

Country Status (6)

Country Link
US (1) US5073869A (de)
EP (1) EP0414445B1 (de)
JP (1) JPH03117115A (de)
AU (1) AU629025B2 (de)
CA (1) CA2023323A1 (de)
DE (1) DE69016308T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146473A (en) 1989-08-14 1992-09-08 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5212817A (en) * 1990-09-14 1993-05-18 Atkinson Noel D Ultra high speed scan system
US5495505A (en) * 1990-12-20 1996-02-27 Motorola, Inc. Increased frequency resolution in a synthesizer
US5276633A (en) * 1992-08-14 1994-01-04 Harris Corporation Sine/cosine generator and method
US5459680A (en) * 1993-10-20 1995-10-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for spur-reduced digital sinusoid synthesis
US5602874A (en) * 1994-12-29 1997-02-11 Motorola, Inc. Method and apparatus for reducing quantization noise
JPH08201449A (ja) * 1995-01-24 1996-08-09 Advantest Corp スペクトラムアナライザ
US5673212A (en) * 1995-09-01 1997-09-30 Motorola, Inc. Method and apparatus for numerically controlled oscillator with partitioned phase accumulator
US5731773A (en) * 1996-06-05 1998-03-24 Mccune, Jr.; Earl W. Half-order hold direct digital frequency synthesis
GB9616537D0 (en) * 1996-08-06 1996-09-25 Digi Media Vision Ltd Digital synthesiser
WO1999013581A1 (de) 1997-09-10 1999-03-18 Siemens Aktiengesellschaft Schaltung zum erzeugen eines signals mit einstellbarer frequenz
TW338206B (en) * 1997-10-02 1998-08-11 Nat Science Council The directing digital frequency synthesizer
US6320431B1 (en) 1999-10-08 2001-11-20 National Semiconductor Corporation Apparatus and method of generating numerically controlled oscillator signals
EP1126359B1 (de) * 2000-02-10 2004-11-17 Anritsu Corporation Frequenzsynthetisierer und Rauschgenerator zur Erzeugung von Gauss-Geräuschen mit diesem Frequenzsynthetisierer
JP4520586B2 (ja) * 2000-02-10 2010-08-04 アンリツ株式会社 周波数シンセサイザおよびガウス雑音発生装置
ATE450822T1 (de) * 2000-12-15 2009-12-15 Asulab Sa Digital gesteuerter oszillator, insbesondere für radiofrequenz-signalempfänger
TW531952B (en) 2000-12-15 2003-05-11 Asulab Sa Numerically controlled oscillator in particular for a radiofrequency signal receiver
US7302237B2 (en) * 2002-07-23 2007-11-27 Mercury Computer Systems, Inc. Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis
DE10262079A1 (de) * 2002-12-23 2004-11-18 Infineon Technologies Ag Verfahren und Vorrichtung zum Extrahieren einer einem Datenstrom zugrundeliegenden Taktfrequenz
EP1646150B1 (de) 2002-12-23 2007-02-14 Infineon Technologies AG Verfahren und Vorrichtung zum Extrahieren einer einem Datenstrom zugrundeliegenden Taktfrequenz
EP1700409A2 (de) * 2003-12-11 2006-09-13 Advanced Radio Corporation Breitbandiger dds-synthesizer
WO2006012362A2 (en) * 2004-07-06 2006-02-02 Bae Systems Information And Electronic Systems Integration Inc Single-level parallel-gated carry/majority circuits and systems therefrom
US7023368B1 (en) * 2004-08-31 2006-04-04 Euvis, Inc. Digital-to-analog signal converting apparatus and method to extend usable spectrum over Nyquist frequency
JP4804239B2 (ja) * 2006-06-22 2011-11-02 ゼン技研株式会社 高負荷用鉄筋交差部締結具
CN102006067B (zh) * 2009-09-02 2013-03-20 中国科学院微电子研究所 一种带波形修正rom的dds电路结构
KR101085107B1 (ko) * 2009-12-02 2011-11-21 (주)자람테크놀로지 가변 사인파 가중 디지털 아날로그 변환기를 이용한 직접 디지털 주파수 합성기 및 그 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838414A (en) * 1972-08-03 1974-09-24 Motorola Inc Digital wave synthesizer
US3946215A (en) * 1974-09-30 1976-03-23 The Boeing Company Pseudo-random code generator
US4327419A (en) * 1980-02-22 1982-04-27 Kawai Musical Instrument Mfg. Co., Ltd. Digital noise generator for electronic musical instruments
US4486846A (en) * 1982-06-28 1984-12-04 Motorola Inc. Numerically controlled oscillator using quadrant replication and function decomposition
US4482974A (en) * 1982-08-13 1984-11-13 Hewlett-Packard Company Apparatus and method of phase-to-amplitude conversion in a sine function generator
US4893316A (en) * 1985-04-04 1990-01-09 Motorola, Inc. Digital radio frequency receiver
US4652832A (en) * 1985-07-05 1987-03-24 Motorola, Inc. Frequency resolution in a digital oscillator
US4809205A (en) * 1986-11-19 1989-02-28 Rockwell International Corporation Digital sine conversion circuit for use in direct digital synthesizers
US4901265A (en) * 1987-12-14 1990-02-13 Qualcomm, Inc. Pseudorandom dither for frequency synthesis noise
US4905177A (en) * 1988-01-19 1990-02-27 Qualcomm, Inc. High resolution phase to sine amplitude conversion
US4933890A (en) * 1989-06-13 1990-06-12 The Charles Stark Draper Laboratory, Inc. Digital frequency synthesizer

Also Published As

Publication number Publication date
CA2023323A1 (en) 1991-02-26
EP0414445A3 (en) 1992-04-08
US5073869A (en) 1991-12-17
JPH03117115A (ja) 1991-05-17
EP0414445B1 (de) 1995-01-25
AU6111790A (en) 1991-02-28
EP0414445A2 (de) 1991-02-27
AU629025B2 (en) 1992-09-24
DE69016308D1 (de) 1995-03-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee