HK1106077A1 - A delta sigma modulator and a configurable filter - Google Patents

A delta sigma modulator and a configurable filter

Info

Publication number
HK1106077A1
HK1106077A1 HK07111350.4A HK07111350A HK1106077A1 HK 1106077 A1 HK1106077 A1 HK 1106077A1 HK 07111350 A HK07111350 A HK 07111350A HK 1106077 A1 HK1106077 A1 HK 1106077A1
Authority
HK
Hong Kong
Prior art keywords
sigma modulator
delta sigma
quantizer
fractional
configurable filter
Prior art date
Application number
HK07111350.4A
Other languages
English (en)
Inventor
Tom Riley
Original Assignee
Kaben Res Inc
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 Kaben Res Inc filed Critical Kaben Res Inc
Publication of HK1106077A1 publication Critical patent/HK1106077A1/xx

Links

Classifications

    • 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
    • H03M7/3026—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 multiple bit one
    • 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
    • H03M7/3042—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 being of the error feedback type, i.e. having loop filter stages in the feedback path only

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Networks Using Active Elements (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
HK07111350.4A 2004-04-02 2007-10-22 A delta sigma modulator and a configurable filter HK1106077A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2004/000510 WO2005096504A1 (en) 2004-04-02 2004-04-02 Delta sigma modulator with multiple filters

Publications (1)

Publication Number Publication Date
HK1106077A1 true HK1106077A1 (en) 2008-02-29

Family

ID=34957242

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07111350.4A HK1106077A1 (en) 2004-04-02 2007-10-22 A delta sigma modulator and a configurable filter

Country Status (8)

Country Link
US (1) US7385538B2 (zh)
EP (1) EP1738467B1 (zh)
CN (1) CN1954500B (zh)
AT (1) ATE398360T1 (zh)
CA (1) CA2561571C (zh)
DE (1) DE602004014415D1 (zh)
HK (1) HK1106077A1 (zh)
WO (1) WO2005096504A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8633842B2 (en) * 2009-03-31 2014-01-21 Agere Systems Llc Methods and apparatus for direct synthesis of RF signals using delta-sigma modulator
KR20120125096A (ko) * 2011-05-06 2012-11-14 삼성전자주식회사 디지털 제어 발진기를 포함하는 위상동기루프 회로
US10211848B1 (en) 2018-03-27 2019-02-19 Synaptics Incorporated Delta sigma modulator systems and methods

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392042A (en) * 1993-08-05 1995-02-21 Martin Marietta Corporation Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor
US5982317A (en) * 1997-04-18 1999-11-09 Jesper Steensgaard-Madsen Oversampled digital-to-analog converter based on nonlinear separation and linear recombination
DE19851637A1 (de) * 1998-11-10 2000-05-11 Bosch Gmbh Robert Sigma-Delta-Modulator und Verfahren zur Unterdrückung eines Quantisierungsfehlers in einem Sigma-Delta-Modulator
CA2294404C (en) * 2000-01-07 2004-11-02 Tadeuse A. Kwasniewski Delta-sigma modulator for fractional-n frequency synthesis
IES20000786A2 (en) * 2000-09-29 2001-10-17 Univ College Cork Nat Univ Ie A subranging sigma delta modulator
US6920182B2 (en) * 2001-01-09 2005-07-19 Microtune (Texas), L.P. Delta-sigma modulator system and method
JP2005510110A (ja) * 2001-11-15 2005-04-14 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
EP1335494A1 (de) * 2001-12-19 2003-08-13 Siemens Aktiengesellschaft Sigma-Delta-Wandler mit Rauschunterdrückung
DE10233391C1 (de) * 2002-07-23 2003-12-11 Infineon Technologies Ag Analog/Digital-Wandlerschaltung sowie entsprechendes Verfahren zur Analog/Digital-Wandlung und Verwendung einer selbstoszillierenden Schaltung zur Analog/Digital-Wandlung
US6744392B2 (en) * 2002-08-02 2004-06-01 Cirrus Logic, Inc. Noise shapers with shared and independent filters and multiple quantizers and data converters and methods using the same
US6697003B1 (en) * 2003-04-17 2004-02-24 Texas Instruments Incorporated System and method for dynamic element matching

Also Published As

Publication number Publication date
CN1954500B (zh) 2010-06-09
EP1738467A1 (en) 2007-01-03
EP1738467B1 (en) 2008-06-11
DE602004014415D1 (de) 2008-07-24
CA2561571C (en) 2012-03-27
US20070018872A1 (en) 2007-01-25
WO2005096504A1 (en) 2005-10-13
CA2561571A1 (en) 2005-10-13
ATE398360T1 (de) 2008-07-15
US7385538B2 (en) 2008-06-10
CN1954500A (zh) 2007-04-25

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Legal Events

Date Code Title Description
CHRG Changes in the register

Free format text: DELETION OF PRIORITY CLAIM: 02.04.2004 CA PCT/CA2004/000510

PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20150402