FI911694A - Foerfarande och arrangemang foer stabilering av en hoegre grads sigma-delta-modulator - Google Patents
Foerfarande och arrangemang foer stabilering av en hoegre grads sigma-delta-modulator Download PDFInfo
- Publication number
- FI911694A FI911694A FI911694A FI911694A FI911694A FI 911694 A FI911694 A FI 911694A FI 911694 A FI911694 A FI 911694A FI 911694 A FI911694 A FI 911694A FI 911694 A FI911694 A FI 911694A
- Authority
- FI
- Finland
- Prior art keywords
- susma
- delta modulator
- modulator
- delta
- Prior art date
Links
Classifications
-
- 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
- H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M3/358—Continuously compensating for, or preventing, undesired influence of physical parameters of non-linear distortion, e.g. instability
- H03M3/36—Continuously compensating for, or preventing, undesired influence of physical parameters of non-linear distortion, e.g. instability by temporarily adapting the operation upon detection of instability conditions
- H03M3/366—Continuously compensating for, or preventing, undesired influence of physical parameters of non-linear distortion, e.g. instability by temporarily adapting the operation upon detection of instability conditions in feed-forward mode, e.g. using look-ahead circuits
-
- 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
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
- H03M3/43—Structural details of delta-sigma modulators, e.g. incremental 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
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
- H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
- H03M3/44—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable
- H03M3/446—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable by a particular choice of poles or zeroes in the z-plane, e.g. by positioning zeroes outside the unit circle, i.e. causing the modulator to operate in a chaotic regime
- H03M3/448—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable by a particular choice of poles or zeroes in the z-plane, e.g. by positioning zeroes outside the unit circle, i.e. causing the modulator to operate in a chaotic regime by removing part of the zeroes, e.g. using local feedback loops
-
- 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
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
- H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
- H03M3/452—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI911694A FI88765C (fi) | 1991-04-09 | 1991-04-09 | Foerfarande och arrangemang foer stabilering av en hoegre grads sigma-delta-modulator |
US07/863,063 US5248972A (en) | 1991-04-09 | 1992-04-03 | Delta-sigma analog-to-digital converter with overload dependent modulator order |
JP04087243A JP3142946B2 (ja) | 1991-04-09 | 1992-04-08 | 高次シグマ−デルタ変調器の安定化構成 |
DE69214996T DE69214996T2 (de) | 1991-04-09 | 1992-04-08 | Modulator, insbesondere Sigma Delta Modulator |
EP92303093A EP0512687B1 (en) | 1991-04-09 | 1992-04-08 | A modulator, in particular a sigma-delta modulator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI911694 | 1991-04-09 | ||
FI911694A FI88765C (fi) | 1991-04-09 | 1991-04-09 | Foerfarande och arrangemang foer stabilering av en hoegre grads sigma-delta-modulator |
Publications (4)
Publication Number | Publication Date |
---|---|
FI911694A0 FI911694A0 (fi) | 1991-04-09 |
FI911694A true FI911694A (fi) | 1992-10-10 |
FI88765B FI88765B (fi) | 1993-03-15 |
FI88765C FI88765C (fi) | 1993-06-28 |
Family
ID=8532277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI911694A FI88765C (fi) | 1991-04-09 | 1991-04-09 | Foerfarande och arrangemang foer stabilering av en hoegre grads sigma-delta-modulator |
Country Status (5)
Country | Link |
---|---|
US (1) | US5248972A (fi) |
EP (1) | EP0512687B1 (fi) |
JP (1) | JP3142946B2 (fi) |
DE (1) | DE69214996T2 (fi) |
FI (1) | FI88765C (fi) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5274375A (en) * | 1992-04-17 | 1993-12-28 | Crystal Semiconductor Corporation | Delta-sigma modulator for an analog-to-digital converter with low thermal noise performance |
FR2716760B1 (fr) * | 1994-02-28 | 1996-03-22 | Thomson Csf | Convertisseur analogique-numérique du type SIGMADELTA de degré élevé. |
FI96649C (fi) * | 1994-06-07 | 1996-07-25 | Fincitec Oy | Ylinäytteistetty korkeamman asteluvun modulaattori |
US5736950A (en) * | 1995-01-31 | 1998-04-07 | The United States Of America As Represented By The Secretary Of The Navy | Sigma-delta modulator with tunable signal passband |
FI98020C (fi) * | 1995-06-06 | 1997-03-25 | Nokia Mobile Phones Ltd | Digitaalisen signaalin modulointimenetelmä ja modulaattori |
FI101027B (fi) * | 1996-01-05 | 1998-03-31 | Nokia Mobile Phones Ltd | Multipleksoitu signaalimuunnos |
US5742246A (en) * | 1996-03-22 | 1998-04-21 | National Science Council | Stabilizing mechanism for sigma-delta modulator |
KR19980021417A (ko) * | 1996-09-16 | 1998-06-25 | 김광호 | 아날로그 디지탈(a d)변환장치 |
US5757301A (en) * | 1997-05-01 | 1998-05-26 | National Science Council | Instability recovery method for sigma-delta modulators |
GB2330707B (en) | 1997-10-23 | 2001-10-24 | Nokia Mobile Phones Ltd | Digital to analogue converter |
GB2330710B (en) * | 1997-10-24 | 2001-07-25 | Sony Uk Ltd | Signal processors |
FI105428B (fi) | 1998-05-13 | 2000-08-15 | Nokia Mobile Phones Ltd | Menetelmä rinnakkais-A/D-muunnoksen virheen korjaamiseksi, korjain ja rinnakkais-A/D-muunnin |
FI120124B (fi) | 1998-05-29 | 2009-06-30 | Nokia Corp | Menetelmä ja piiri signaalin näytteistämiseksi suurella näytteistystaajuudella |
GB9917567D0 (en) | 1999-07-28 | 1999-09-29 | Koninkl Philips Electronics Nv | Variable order sigma-delta modulator |
JP2001237707A (ja) * | 2000-02-18 | 2001-08-31 | Sony Corp | デジタル信号処理装置及び方法、並びにδς変調器 |
IT1315978B1 (it) * | 2000-07-31 | 2003-03-26 | St Microelectronics Srl | Metodo per ripristinare la stabilita' di un modulatore sigma-delta ecircuito per mettere in pratica tale metodo. |
EP1202461B1 (en) * | 2000-10-25 | 2005-03-09 | STMicroelectronics S.r.l. | A method of improving the signal/noise ratio of a sigma-delta modulator and a circuit which uses the method |
US6724332B1 (en) * | 2002-08-13 | 2004-04-20 | Cirrus Logic, Inc. | Noise shaping circuits and methods with feedback steering overload compensation and systems using the same |
US6933871B2 (en) * | 2001-09-17 | 2005-08-23 | Cirrus Logic, Inc. | Feedback steering delta-sigma modulators and systems using the same |
US6556159B1 (en) * | 2001-09-17 | 2003-04-29 | Cirrus Logic, Inc. | Variable order modulator |
JP3902120B2 (ja) * | 2002-11-25 | 2007-04-04 | パイオニア株式会社 | デルタシグマ変調器およびディジタルアンプ |
JP2007528138A (ja) * | 2003-06-27 | 2007-10-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | シグマデルタ変調器を備えたアナログディジタル変換器およびそのようなアナログディジタル変換器を備えた受信機 |
US6992606B2 (en) * | 2003-07-09 | 2006-01-31 | Texas Instruments Incorporated | Method and circuit for multi-standard sigma-delta modulator |
US7212137B2 (en) * | 2003-10-09 | 2007-05-01 | Cirrus Logic, Inc. | Delta sigma modulator with integral decimation |
US7196647B2 (en) | 2004-01-16 | 2007-03-27 | Cirrus Logic, Inc. | Signal processing with look-ahead modulator noise quantization minimization |
US7084798B2 (en) | 2004-01-16 | 2006-08-01 | Cirrus Logic, Inc. | Look-ahead delta sigma modulators with quantizer input approximations |
US7170434B2 (en) | 2004-01-16 | 2007-01-30 | Cirrus Logic, Inc. | Look-ahead delta sigma modulator with quantization using natural and pattern loop filter responses |
US7187312B2 (en) | 2004-01-16 | 2007-03-06 | Cirrus Logic, Inc. | Look-ahead delta sigma modulator having an infinite impulse response filter with multiple look-ahead outputs |
US7138934B2 (en) | 2004-01-26 | 2006-11-21 | Cirrus Logic, Inc. | Pattern biasing for look-ahead delta sigma modulators |
US7148830B2 (en) | 2004-01-26 | 2006-12-12 | Cirrus Logic, Inc. | Look-ahead delta sigma modulator with pruning of output candidate vectors using quantization error minimization pruning techniques |
US7081843B2 (en) * | 2004-07-19 | 2006-07-25 | Cirrus Logic, Inc. | Overload protection for look-ahead delta sigma modulators |
US7321324B2 (en) * | 2005-06-30 | 2008-01-22 | Silicon Laboratories Inc. | Unconditionally stable analog-to-digital converter |
US7315264B2 (en) * | 2006-01-17 | 2008-01-01 | D2Audio Corporation | Systems and methods for controlling transient response in the output of a noise shaper |
TWI312619B (en) * | 2006-07-26 | 2009-07-21 | Ite Tech Inc | Delta-sigma analog to digital converter and method thereof |
US7868803B2 (en) * | 2006-10-13 | 2011-01-11 | Panasonic Corporation | Semiconductor device having ΔΣ modulator, and semiconductor system |
US7986929B2 (en) * | 2006-12-08 | 2011-07-26 | Silicon Laboratories Inc. | Providing channel filtering in an automatic frequency control path |
JP2008263258A (ja) * | 2007-04-10 | 2008-10-30 | Matsushita Electric Ind Co Ltd | デルタシグマ変調回路とそれを用いたデルタシグマad変換装置 |
JP4890503B2 (ja) * | 2008-06-17 | 2012-03-07 | 旭化成エレクトロニクス株式会社 | デルタシグマ変調器 |
US9455736B2 (en) | 2014-12-22 | 2016-09-27 | Onkyo Corporation | ΔΣ modulator and program of ΔΣ modulator |
JP6160604B2 (ja) | 2014-12-22 | 2017-07-12 | オンキヨー株式会社 | Δς変調器およびそのプログラム |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4509037A (en) * | 1981-06-12 | 1985-04-02 | Gould Inc. | Enhanced delta modulation encoder |
CA1184660A (en) * | 1981-06-12 | 1985-03-26 | Robert W. Harris | Enhanced delta modulation encoder |
US5012244A (en) * | 1989-10-27 | 1991-04-30 | Crystal Semiconductor Corporation | Delta-sigma modulator with oscillation detect and reset circuit |
NL9100379A (nl) * | 1991-03-01 | 1992-10-01 | Philips Nv | Sigma-deltamodulator. |
-
1991
- 1991-04-09 FI FI911694A patent/FI88765C/fi active
-
1992
- 1992-04-03 US US07/863,063 patent/US5248972A/en not_active Expired - Lifetime
- 1992-04-08 DE DE69214996T patent/DE69214996T2/de not_active Expired - Lifetime
- 1992-04-08 JP JP04087243A patent/JP3142946B2/ja not_active Expired - Fee Related
- 1992-04-08 EP EP92303093A patent/EP0512687B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5248972A (en) | 1993-09-28 |
DE69214996D1 (de) | 1996-12-12 |
FI911694A0 (fi) | 1991-04-09 |
FI88765C (fi) | 1993-06-28 |
DE69214996T2 (de) | 1997-04-10 |
JP3142946B2 (ja) | 2001-03-07 |
EP0512687A2 (en) | 1992-11-11 |
EP0512687B1 (en) | 1996-11-06 |
JPH05110442A (ja) | 1993-04-30 |
FI88765B (fi) | 1993-03-15 |
EP0512687A3 (en) | 1993-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
PC | Transfer of assignment of patent |
Owner name: NOKIA MATKAPUHELIMET OY |