DE68926722D1 - SIGMA-DELTA-Modulator für Digital-Analogwandler - Google Patents
SIGMA-DELTA-Modulator für Digital-AnalogwandlerInfo
- Publication number
- DE68926722D1 DE68926722D1 DE68926722T DE68926722T DE68926722D1 DE 68926722 D1 DE68926722 D1 DE 68926722D1 DE 68926722 T DE68926722 T DE 68926722T DE 68926722 T DE68926722 T DE 68926722T DE 68926722 D1 DE68926722 D1 DE 68926722D1
- Authority
- DE
- Germany
- Prior art keywords
- digital
- analog converter
- delta modulator
- sigma delta
- sigma
- 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
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
- H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
- H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
- H03M7/304—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/182,665 US4901077A (en) | 1988-04-18 | 1988-04-18 | Sigma-delta modulator for D-to-A converter |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68926722D1 true DE68926722D1 (de) | 1996-08-01 |
DE68926722T2 DE68926722T2 (de) | 1996-10-31 |
Family
ID=22669498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68926722T Expired - Fee Related DE68926722T2 (de) | 1988-04-18 | 1989-04-08 | SIGMA-DELTA-Modulator für Digital-Analogwandler |
Country Status (11)
Country | Link |
---|---|
US (1) | US4901077A (de) |
EP (1) | EP0338358B1 (de) |
JP (1) | JP2850011B2 (de) |
KR (1) | KR900017305A (de) |
CN (1) | CN1015307B (de) |
CA (1) | CA1292806C (de) |
DE (1) | DE68926722T2 (de) |
DK (1) | DK184189A (de) |
ES (1) | ES2088872T3 (de) |
FI (1) | FI891715A (de) |
MY (1) | MY103841A (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07114367B2 (ja) * | 1988-12-27 | 1995-12-06 | 三菱電機株式会社 | 信号処理装置 |
JPH07105724B2 (ja) * | 1989-07-14 | 1995-11-13 | ヤマハ株式会社 | ディジタル・アナログ変換回路 |
US5153593A (en) * | 1990-04-26 | 1992-10-06 | Hughes Aircraft Company | Multi-stage sigma-delta analog-to-digital converter |
US5057840A (en) * | 1990-12-26 | 1991-10-15 | Motorola, Inc. | Σ-Δmodulator for digital-to-analog converter |
FI88980C (fi) * | 1991-01-09 | 1993-07-26 | Nokia Mobile Phones Ltd | Sigma-delta-modulator foer d/a-omvandlare |
JP2547902B2 (ja) * | 1991-03-29 | 1996-10-30 | 株式会社東芝 | シグマデルタ型d/a変換器システム |
US5208594A (en) * | 1991-05-02 | 1993-05-04 | Ricoh Company, Ltd. | Signal processor that uses a delta-sigma modulation |
US5196850A (en) * | 1991-11-13 | 1993-03-23 | Crystal Semiconductor | Fourth order digital delta-sigma modulator |
US5351048A (en) * | 1992-04-09 | 1994-09-27 | Yoshio Yamasaki | One bit high speed signal processing system utilizing controlled spectrum of quantization noise |
US5353309A (en) * | 1992-05-01 | 1994-10-04 | At&T Bell Laboratories | ISDN transmitter |
US5511052A (en) * | 1992-05-11 | 1996-04-23 | Eastman Kodak Company | Digital compensator for controlling a servo to correct the value of a given parameter of a system |
US5406284A (en) * | 1992-12-31 | 1995-04-11 | Monolith Technologies Corporation | Methods and apparatus for the quantization and analog conversion of digital signals |
US5963160A (en) * | 1993-09-13 | 1999-10-05 | Analog Devices, Inc. | Analog to digital conversion using nonuniform sample rates |
JPH09504917A (ja) * | 1993-09-13 | 1997-05-13 | アナログ・ディバイセス・インコーポレーテッド | 不均一サンプル率を用いたディジタルアナログ変換 |
US6313765B1 (en) | 1997-10-10 | 2001-11-06 | L-3 Communications Corporation | Method for sample rate conversion of digital data |
US5982213A (en) * | 1997-11-14 | 1999-11-09 | Texas Instruments Incorporated | Digital phase lock loop |
JP2001077692A (ja) * | 1999-09-02 | 2001-03-23 | Nec Ic Microcomput Syst Ltd | D/a変換回路 |
US6441761B1 (en) | 1999-12-08 | 2002-08-27 | Texas Instruments Incorporated | High speed, high resolution digital-to-analog converter with off-line sigma delta conversion and storage |
EP1309972A1 (de) * | 2000-08-11 | 2003-05-14 | Koninklijke Philips Electronics N.V. | Verfahren und anordnung zur fehlerverschleierung |
US6501404B2 (en) | 2001-01-08 | 2002-12-31 | Agilent Technologies, Inc. | System and method for encoding an input data stream by utilizing a predictive, look-ahead feature |
US6518902B2 (en) | 2001-04-30 | 2003-02-11 | Texas Instruments Incorporated | PC card and WLAN system having high speed, high resolution, digital-to analog converter with off-line sigma delta conversion and storage |
US6489908B2 (en) | 2001-04-30 | 2002-12-03 | Texas Instruments Incorporated | Wireless local loop terminal and system having high speed, high resolution, digital-to-analog converter with off-line sigma-delta conversion and storage |
US6515605B2 (en) | 2001-04-30 | 2003-02-04 | Texas Instruments Incorporated | Base station having high speed, high resolution, digital-to-analog converter with off-line sigma delta conversion and storage |
US7020219B2 (en) * | 2001-04-30 | 2006-03-28 | Texas Instruments Incorporated | Wireless user terminal and system having high speed, high resolution, digital-to-analog converter with off-line sigma delta conversion and storage |
AU2002244265A1 (en) | 2001-07-13 | 2003-01-29 | Cirrus Logic, Inc. | Circuits, systems and methods for volume control in 1-bit digital audio systems |
JP2003204267A (ja) * | 2001-10-31 | 2003-07-18 | Seiko Epson Corp | Da変換器およびデータ再生装置 |
US6727832B1 (en) * | 2002-11-27 | 2004-04-27 | Cirrus Logic, Inc. | Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same |
US6982662B2 (en) * | 2003-03-06 | 2006-01-03 | Texas Instruments Incorporated | Method and apparatus for efficient conversion of signals using look-up table |
DE102005029819B4 (de) * | 2005-06-27 | 2010-03-18 | Infineon Technologies Ag | Sigma-Delta-Umsetzer und Verwendung desselben |
US7903010B1 (en) * | 2009-08-31 | 2011-03-08 | Cirrus Logic, Inc. | Delta-sigma analog-to-digital converter (ADC) having a serialized quantizer output |
US8284085B2 (en) | 2010-10-06 | 2012-10-09 | Texas Instruments Incorporated | Pipelined continuous-time sigma delta modulator |
TWI559202B (zh) * | 2014-10-01 | 2016-11-21 | 義隆電子股份有限公司 | 電容式觸控裝置及其刺激訊號產生電路與方法 |
CN107544020B (zh) | 2016-06-29 | 2021-02-05 | 恩智浦美国有限公司 | 用于∑-△调制器的内建自测试电路 |
CN107248894B (zh) * | 2017-06-02 | 2019-06-11 | 广东凌传科技有限公司 | 嵌入式电台ip话音模块及其控制方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1068822A (en) * | 1974-06-24 | 1979-12-25 | Ching-Long Song | Digital to analog converter for a communication system |
US4109110A (en) * | 1975-02-20 | 1978-08-22 | International Standard Electric Corporation | Digital-to-analog converter |
GB1580447A (en) * | 1976-12-01 | 1980-12-03 | Post Office | Code converters |
US4219879A (en) * | 1978-09-07 | 1980-08-26 | Hewlett-Packard Company | Digital to analog conversion system |
NL173339C (nl) * | 1978-11-30 | 1984-01-02 | Philips Nv | Digitaal-analoog omzetter. |
DE3021012C2 (de) * | 1980-06-03 | 1985-08-22 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Verallgemeinertes interpolativers Verfahren zur Digital-Analog-Umsetzung von PCM Signalen |
BE899174A (nl) * | 1984-03-16 | 1984-09-17 | Bell Telephone Mfg | Besturingsketen met terugkoppeling en met geschakelde schakelaars en sigma-delta modulator waarin deze wordt toegepast. |
US4593271A (en) * | 1985-01-16 | 1986-06-03 | At&T Bell Laboratories | Higher order interpolation for digital-to-analog conversion |
US4704600A (en) * | 1985-02-04 | 1987-11-03 | Nippon Telegraph And Telephone Corporation | Oversampling converter |
US4682149A (en) * | 1985-10-02 | 1987-07-21 | Hughes Aircraft Company | High resolution pipelined digital-to-analog converter |
GB2199455A (en) * | 1986-08-11 | 1988-07-06 | George Oscar Lernout | System for analogue/digital/analogue conversion |
US4829299A (en) * | 1987-09-25 | 1989-05-09 | Dolby Laboratories Licensing Corporation | Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading |
-
1988
- 1988-04-18 US US07/182,665 patent/US4901077A/en not_active Expired - Lifetime
-
1989
- 1989-01-05 CA CA000587581A patent/CA1292806C/en not_active Expired - Lifetime
- 1989-01-24 CN CN89100545A patent/CN1015307B/zh not_active Expired
- 1989-03-08 MY MYPI89000280A patent/MY103841A/en unknown
- 1989-04-08 ES ES89106253T patent/ES2088872T3/es not_active Expired - Lifetime
- 1989-04-08 EP EP89106253A patent/EP0338358B1/de not_active Expired - Lifetime
- 1989-04-08 DE DE68926722T patent/DE68926722T2/de not_active Expired - Fee Related
- 1989-04-11 FI FI891715A patent/FI891715A/fi not_active Application Discontinuation
- 1989-04-15 KR KR1019890004980A patent/KR900017305A/ko not_active Application Discontinuation
- 1989-04-17 JP JP1095462A patent/JP2850011B2/ja not_active Expired - Fee Related
- 1989-04-17 DK DK184189A patent/DK184189A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR900017305A (ko) | 1990-11-16 |
DK184189A (da) | 1989-10-19 |
FI891715A (fi) | 1989-10-19 |
MY103841A (en) | 1993-09-30 |
CA1292806C (en) | 1991-12-03 |
CN1037246A (zh) | 1989-11-15 |
JPH01305725A (ja) | 1989-12-11 |
FI891715A0 (fi) | 1989-04-11 |
US4901077A (en) | 1990-02-13 |
EP0338358A3 (de) | 1992-08-05 |
JP2850011B2 (ja) | 1999-01-27 |
ES2088872T3 (es) | 1996-10-01 |
CN1015307B (zh) | 1992-01-15 |
EP0338358B1 (de) | 1996-06-26 |
EP0338358A2 (de) | 1989-10-25 |
DK184189D0 (da) | 1989-04-17 |
DE68926722T2 (de) | 1996-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |