AU2001285770A1 - Communication device with configurable sigma-delta modulator - Google Patents

Communication device with configurable sigma-delta modulator

Info

Publication number
AU2001285770A1
AU2001285770A1 AU2001285770A AU8577001A AU2001285770A1 AU 2001285770 A1 AU2001285770 A1 AU 2001285770A1 AU 2001285770 A AU2001285770 A AU 2001285770A AU 8577001 A AU8577001 A AU 8577001A AU 2001285770 A1 AU2001285770 A1 AU 2001285770A1
Authority
AU
Australia
Prior art keywords
bit width
digital
configurable
sigma
output bit
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.)
Abandoned
Application number
AU2001285770A
Inventor
Dietmar Lipka
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2001285770A1 publication Critical patent/AU2001285770A1/en
Abandoned legal-status Critical Current

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Logic Circuits (AREA)

Abstract

In up-to date communication devices an intermediate frequency signal is generated at first in a digital way and than is converted to an analogue signal by a digital-to-analogue converter (10). In order to offer a greater flexibility in choosing a particular digital-to-analogue converter (10) the invention proposes to use sigma-delta modulators (8), the output bit width (n) of which is arranged to be configurable. The advantage of providing sigma-delta modulators with a configurable output bit width is that by this the output bit width of the interpolation filters can be easily adapted to the input bit width of a choosen digital-to-analogue converter without the need to change the internal design of a baseband processing circuit. <IMAGE>
AU2001285770A 2000-06-28 2001-06-21 Communication device with configurable sigma-delta modulator Abandoned AU2001285770A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00113665 2000-06-28
EP00113665A EP1168632A1 (en) 2000-06-28 2000-06-28 Communication device with configurable sigma-delta modulator
PCT/EP2001/006993 WO2002001726A2 (en) 2000-06-28 2001-06-21 Communication device with configurable sigma-delta modulator

Publications (1)

Publication Number Publication Date
AU2001285770A1 true AU2001285770A1 (en) 2002-01-08

Family

ID=8169095

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001285770A Abandoned AU2001285770A1 (en) 2000-06-28 2001-06-21 Communication device with configurable sigma-delta modulator

Country Status (6)

Country Link
US (1) US7227910B2 (en)
EP (2) EP1168632A1 (en)
AT (1) ATE352128T1 (en)
AU (1) AU2001285770A1 (en)
DE (1) DE60126087T2 (en)
WO (1) WO2002001726A2 (en)

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US7136430B2 (en) 2003-03-31 2006-11-14 Nortel Networks Limited Digital receiver and method
US6987953B2 (en) * 2003-03-31 2006-01-17 Nortel Networks Limited Digital transmitter and method
US8250295B2 (en) * 2004-01-05 2012-08-21 Smart Modular Technologies, Inc. Multi-rank memory module that emulates a memory module having a different number of ranks
US20050163255A1 (en) * 2004-01-22 2005-07-28 Broadcom Corporation System and method for simplifying analog processing in a transmitter
US7606321B2 (en) * 2004-01-22 2009-10-20 Broadcom Corporation System and method for simplifying analog processing in a transmitter incorporating a randomization circuit
KR100602642B1 (en) * 2004-01-30 2006-07-19 삼성전자주식회사 method and apparatus for compensateing Phase error in Base Station System
US7532537B2 (en) * 2004-03-05 2009-05-12 Netlist, Inc. Memory module with a circuit providing load isolation and memory domain translation
US7916574B1 (en) 2004-03-05 2011-03-29 Netlist, Inc. Circuit providing load isolation and memory domain translation for memory module
US7289386B2 (en) 2004-03-05 2007-10-30 Netlist, Inc. Memory module decoder
US7061989B2 (en) * 2004-05-28 2006-06-13 Texas Instruments Incorporated Fully digital transmitter including a digital band-pass sigma-delta modulator
US7379752B2 (en) 2004-10-13 2008-05-27 Mediatek Inc. Methods and apparatus for communication in a wireless system
US8417750B2 (en) 2004-10-13 2013-04-09 Mediatek Inc. Filters for communication systems
US7463905B1 (en) * 2004-12-09 2008-12-09 Nortel Networks Limited Cellular telephony mast cable reduction
US20060277355A1 (en) * 2005-06-01 2006-12-07 Mark Ellsberry Capacity-expanding memory device
GB2440187A (en) * 2006-07-17 2008-01-23 Ubidyne Inc DUC and DDC forming digital transceiver
KR101460664B1 (en) * 2007-10-11 2014-11-12 삼성전자주식회사 Rf Chip including a shared converter and Transceiver having the same
US9071496B2 (en) 2007-11-02 2015-06-30 Fadhel M. Ghannouchi All-digital multi-standard transmitter architecture using delta-sigma modulators
WO2009055897A1 (en) * 2007-11-02 2009-05-07 Ghannouchi Fadhel M All-digital multi-standard transmitter architecture using delta- sigma modulators
US8417870B2 (en) * 2009-07-16 2013-04-09 Netlist, Inc. System and method of increasing addressable memory space on a memory board
US8516185B2 (en) 2009-07-16 2013-08-20 Netlist, Inc. System and method utilizing distributed byte-wise buffers on a memory module
US8154901B1 (en) 2008-04-14 2012-04-10 Netlist, Inc. Circuit providing load isolation and noise reduction
US8553807B2 (en) 2008-10-20 2013-10-08 Apple Inc. Methods and systems for programmable digital up-conversion
US9419637B1 (en) 2010-01-05 2016-08-16 Syntropy Systems, Llc Multi-mode sampling/quantization converters
US9130584B1 (en) * 2010-01-05 2015-09-08 Syntropy Systems, Llc Multi-mode sampling/quantization converters
US9128632B2 (en) 2009-07-16 2015-09-08 Netlist, Inc. Memory module with distributed data buffers and method of operation
US9654128B2 (en) 2010-01-05 2017-05-16 Syntropy Systems, Llc Multi-mode sampling/quantization converters
US20120288035A1 (en) 2011-05-11 2012-11-15 Udo Karthaus Base-band to radio frequency up-converter
US8884796B2 (en) * 2011-10-20 2014-11-11 Kathrein-Werke Kg Delta-sigma modulator with feedback signal modification
CN104620510A (en) * 2012-09-14 2015-05-13 日本电气株式会社 Transmitter
EP2936757B1 (en) * 2012-12-18 2020-09-30 Teledyne Signal Processing Devices Sweden AB Methods and devices for handling channel mismatches of an i/q down-converted signal and a two-channel ti-adc
KR102063557B1 (en) * 2013-05-14 2020-01-09 한국전자통신연구원 Interpolation filter based on time assignment algorithm
CN105706064B (en) 2013-07-27 2019-08-27 奈特力斯股份有限公司 With the local memory modules synchronized respectively
US9621175B2 (en) 2015-02-11 2017-04-11 Syntropy Systems, Llc Sampling/quantization converters
US10680863B2 (en) * 2015-03-31 2020-06-09 Sony Corporation Modulation apparatus
US11372038B2 (en) * 2016-11-11 2022-06-28 University Of Tennessee Research Foundation Magnetic field based wireless GMD/EMP-E3 impact monitoring device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304243B (en) * 1995-08-04 2000-03-15 Nokia Mobile Phones Ltd Analogue to digital and digital to analogue converters
NO303660B1 (en) * 1996-11-07 1998-08-10 Nera Asa Method and system of quadrature modulation and digital-to-analog conversion
US6075820A (en) * 1997-05-28 2000-06-13 Lucent Technologies Inc. Sampling receiver with multi-branch sigma-delta modulators and digital channel mismatch correction

Also Published As

Publication number Publication date
DE60126087T2 (en) 2007-11-15
EP1295398A2 (en) 2003-03-26
US7227910B2 (en) 2007-06-05
DE60126087D1 (en) 2007-03-08
WO2002001726A3 (en) 2002-04-04
ATE352128T1 (en) 2007-02-15
WO2002001726A2 (en) 2002-01-03
EP1295398B1 (en) 2007-01-17
EP1168632A1 (en) 2002-01-02
US20040036638A1 (en) 2004-02-26

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