DE69421977D1 - Ausgangsfilter für einen Überabtastungs-Digital zu Analog-Konverter - Google Patents
Ausgangsfilter für einen Überabtastungs-Digital zu Analog-KonverterInfo
- Publication number
- DE69421977D1 DE69421977D1 DE69421977T DE69421977T DE69421977D1 DE 69421977 D1 DE69421977 D1 DE 69421977D1 DE 69421977 T DE69421977 T DE 69421977T DE 69421977 T DE69421977 T DE 69421977T DE 69421977 D1 DE69421977 D1 DE 69421977D1
- Authority
- DE
- Germany
- Prior art keywords
- analog converter
- output filter
- oversampling digital
- oversampling
- digital
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0614—Non-recursive filters using Delta-modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step
- H03M3/502—Details of the final digital/analogue conversion following the digital delta-sigma modulation
- H03M3/504—Details of the final digital/analogue conversion following the digital delta-sigma modulation the final digital/analogue converter being constituted by a finite impulse response [FIR] filter, i.e. FIRDAC
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5240352A JPH0774645A (ja) | 1993-09-01 | 1993-09-01 | オーバサンプリングd/a変換器の出力フィルタ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69421977D1 true DE69421977D1 (de) | 2000-01-13 |
DE69421977T2 DE69421977T2 (de) | 2000-07-27 |
Family
ID=17058217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69421977T Expired - Fee Related DE69421977T2 (de) | 1993-09-01 | 1994-09-01 | Ausgangsfilter für einen Überabtastungs-Digital zu Analog-Konverter |
Country Status (4)
Country | Link |
---|---|
US (1) | US5544081A (de) |
EP (1) | EP0642221B1 (de) |
JP (1) | JPH0774645A (de) |
DE (1) | DE69421977T2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2743960B1 (fr) * | 1996-01-18 | 1998-04-10 | Texas Instruments France | Convertisseur numerique analogique a haute resolution destine notamment a l'accord d'un oscillateur a quartz controle par tension |
GB2319939B (en) * | 1996-11-27 | 2001-06-27 | Sony Uk Ltd | Signal processors |
FR2787280B1 (fr) | 1998-12-14 | 2001-01-05 | Cit Alcatel | Circuit electronique de conversion numerique-analogique pour une chaine de transmission en bande de base |
US6816100B1 (en) | 1999-03-12 | 2004-11-09 | The Regents Of The University Of California | Analog-to-digital converters with common-mode rejection dynamic element matching, including as used in delta-sigma modulators |
US6429798B1 (en) * | 2000-02-08 | 2002-08-06 | Ericsson Inc. | Combined transmit filter and D-to-A converter |
DE10031538C2 (de) * | 2000-06-28 | 2002-12-12 | Siemens Ag | Digital/Analog-Wandler |
US6351229B1 (en) * | 2000-09-05 | 2002-02-26 | Texas Instruments Incorporated | Density-modulated dynamic dithering circuits and method for delta-sigma converter |
US20020126029A1 (en) * | 2001-03-08 | 2002-09-12 | Grale Trenton John | Programmable test modulator for selectively generating test signals of delta-sigma order N |
AU2003239885A1 (en) * | 2003-05-22 | 2005-01-21 | Ess Technology, Inc. | Digital to analog converter having a low power semi-analog finite impulse response circuit |
US20050015419A1 (en) * | 2003-07-14 | 2005-01-20 | Chiang Pu | Techniques to provide programmable finite impulse response filtering |
US20070069929A1 (en) * | 2005-09-28 | 2007-03-29 | Ess Technology, Inc. | High speed sigma delta device |
CN101552700B (zh) * | 2008-04-01 | 2011-03-23 | 华为技术有限公司 | 一种匹配结果上报控制方法和装置 |
CN101738524B (zh) * | 2008-11-19 | 2012-07-18 | 三星电子株式会社 | 用于低压检测电路的假信号消除电路 |
JP5806442B2 (ja) * | 2008-12-01 | 2015-11-10 | セイコーエプソン株式会社 | 周波数変化量測定装置 |
JP4635091B2 (ja) * | 2009-01-14 | 2011-02-16 | 株式会社アドバンテスト | 信号処理装置およびその装置を用いた半導体デバイス試験装置 |
JP5486334B2 (ja) * | 2010-02-05 | 2014-05-07 | 旭化成エレクトロニクス株式会社 | ディジタルアナログ変換器 |
KR101290532B1 (ko) * | 2011-12-02 | 2013-07-30 | 주식회사 이노와이어리스 | 사용자 단말에서 cqi인덱스를 전송하는 방법 |
US9647640B2 (en) * | 2014-07-03 | 2017-05-09 | Ess Technology, Inc. | Semi-analog FIR filter with high impedance state |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382285A (en) * | 1980-12-30 | 1983-05-03 | Motorola, Inc. | Filter for binary data with integral output amplitude multiplier |
US4566119A (en) * | 1983-10-12 | 1986-01-21 | Industrial Products, Inc. | Equalizer networks and methods of developing scaling coefficients therefor |
US4667298A (en) * | 1983-12-08 | 1987-05-19 | United States Of America As Represented By The Secretary Of The Army | Method and apparatus for filtering high data rate signals |
US4968989A (en) * | 1987-04-20 | 1990-11-06 | Olmstead John A | Switched capacitor filter for use with a digital-to-analog (D/A) converter |
US4855944A (en) * | 1987-09-04 | 1989-08-08 | Rockwell International Corporation | Noise generator with shaped spectrum |
GB8813162D0 (en) * | 1988-06-03 | 1988-07-06 | British Telecomm | Digital-to-analogue conversion |
FR2642921B1 (fr) * | 1989-02-07 | 1991-05-17 | Texas Instruments France | Chaine de conversion numerique-analogique incluant un modulateur numerique a plusieurs niveaux de quantification, associe a un convertisseur numerique-analogique |
US5012245A (en) * | 1989-10-04 | 1991-04-30 | At&T Bell Laboratories | Integral switched capacitor FIR filter/digital-to-analog converter for sigma-delta encoded digital audio |
US5061925A (en) * | 1990-08-22 | 1991-10-29 | Crystal Semiconductor Corporation | Phase equalization system for a digital-to-analog converter utilizing separate digital and analog sections |
JPH05145423A (ja) * | 1991-11-20 | 1993-06-11 | Sony Corp | デイジタル−アナログ変換方式 |
US5325322A (en) * | 1993-06-14 | 1994-06-28 | International Business Machines Corporation | High-speed programmable analog transversal filter having a large dynamic range |
-
1993
- 1993-09-01 JP JP5240352A patent/JPH0774645A/ja active Pending
-
1994
- 1994-08-26 US US08/294,825 patent/US5544081A/en not_active Expired - Fee Related
- 1994-09-01 DE DE69421977T patent/DE69421977T2/de not_active Expired - Fee Related
- 1994-09-01 EP EP94113650A patent/EP0642221B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0774645A (ja) | 1995-03-17 |
EP0642221A1 (de) | 1995-03-08 |
EP0642221B1 (de) | 1999-12-08 |
DE69421977T2 (de) | 2000-07-27 |
US5544081A (en) | 1996-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: NEC ELECTRONICS CORP., KAWASAKI, KANAGAWA, JP |
|
8339 | Ceased/non-payment of the annual fee |