ZA988204B - An analog-to-digital converter. - Google Patents

An analog-to-digital converter.

Info

Publication number
ZA988204B
ZA988204B ZA9808204A ZA988204A ZA988204B ZA 988204 B ZA988204 B ZA 988204B ZA 9808204 A ZA9808204 A ZA 9808204A ZA 988204 A ZA988204 A ZA 988204A ZA 988204 B ZA988204 B ZA 988204B
Authority
ZA
South Africa
Prior art keywords
analog
digital converter
converter
digital
Prior art date
Application number
ZA9808204A
Other languages
English (en)
Inventor
Seyfollah S Bazarjani
Saed G Younis
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of ZA988204B publication Critical patent/ZA988204B/xx

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
    • H03M3/02—Delta modulation, i.e. one-bit differential 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
    • H03M3/39—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
    • H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
    • H03M3/418—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being single bit quantisers
    • 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
    • H03M3/368—Continuously compensating for, or preventing, undesired influence of physical parameters of noise other than the quantisation noise already being shaped inherently by delta-sigma modulators
    • H03M3/37—Compensation or reduction of delay or phase error
    • H03M3/372—Jitter reduction
    • 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
    • H03M3/402—Arrangements specific to bandpass modulators
    • H03M3/404—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used
    • H03M3/406—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used by the use of a pair of integrators forming a closed loop
    • 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
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/466—Multiplexed conversion systems
    • H03M3/468—Interleaved, i.e. using multiple converters or converter parts for one channel, e.g. using Hadamard codes, pi-delta-sigma converters
    • H03M3/47—Interleaved, i.e. using multiple converters or converter parts for one channel, e.g. using Hadamard codes, pi-delta-sigma converters using time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Analogue/Digital Conversion (AREA)
ZA9808204A 1997-09-12 1998-09-08 An analog-to-digital converter. ZA988204B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/928,874 US5982315A (en) 1997-09-12 1997-09-12 Multi-loop Σ Δ analog to digital converter

Publications (1)

Publication Number Publication Date
ZA988204B true ZA988204B (en) 2000-07-07

Family

ID=25456917

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9808204A ZA988204B (en) 1997-09-12 1998-09-08 An analog-to-digital converter.

Country Status (11)

Country Link
US (1) US5982315A (ko)
EP (1) EP1012984A1 (ko)
JP (1) JP2001517014A (ko)
KR (1) KR100546469B1 (ko)
AR (1) AR017101A1 (ko)
AU (1) AU742487B2 (ko)
CA (1) CA2303279A1 (ko)
IL (1) IL134956A0 (ko)
MY (1) MY114958A (ko)
WO (1) WO1999014860A1 (ko)
ZA (1) ZA988204B (ko)

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Also Published As

Publication number Publication date
WO1999014860A1 (en) 1999-03-25
IL134956A0 (en) 2001-05-20
KR20010023942A (ko) 2001-03-26
CA2303279A1 (en) 1999-03-25
KR100546469B1 (ko) 2006-01-26
US5982315A (en) 1999-11-09
AU9308898A (en) 1999-04-05
AU742487B2 (en) 2002-01-03
MY114958A (en) 2003-02-28
AR017101A1 (es) 2001-08-22
JP2001517014A (ja) 2001-10-02
EP1012984A1 (en) 2000-06-28

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