HK1063888A1 - Method and apparatus for controlling stages of a multi-stage circuit - Google Patents

Method and apparatus for controlling stages of a multi-stage circuit

Info

Publication number
HK1063888A1
HK1063888A1 HK04106568A HK04106568A HK1063888A1 HK 1063888 A1 HK1063888 A1 HK 1063888A1 HK 04106568 A HK04106568 A HK 04106568A HK 04106568 A HK04106568 A HK 04106568A HK 1063888 A1 HK1063888 A1 HK 1063888A1
Authority
HK
Hong Kong
Prior art keywords
stages
signal
sigmadelta
adc
control
Prior art date
Application number
HK04106568A
Other languages
English (en)
Inventor
Seyfollah Bazarjani
Sean Wang
Vincenzo Peluso
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 HK1063888A1 publication Critical patent/HK1063888A1/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
    • H03M3/30—Delta-sigma modulation
    • H03M3/32—Delta-sigma modulation with special provisions or arrangements for power saving, e.g. by allowing a sleep mode, using lower supply voltage for downstream stages, using multiple clock domains, by selectively turning on stages when needed
    • 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
    • H03M3/392—Arrangements for selecting among plural operation modes, e.g. for multi-standard operation
    • H03M3/394—Arrangements for selecting among plural operation modes, e.g. for multi-standard operation among different orders of the loop filter
    • 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
    • H03M3/39—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
    • H03M3/458—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
HK04106568A 2000-11-01 2004-09-01 Method and apparatus for controlling stages of a multi-stage circuit HK1063888A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/703,647 US6407689B1 (en) 2000-11-01 2000-11-01 Method and apparatus for controlling stages of a multi-stage circuit
PCT/US2001/046188 WO2002037686A2 (en) 2000-11-01 2001-10-31 Method and apparatus for controlling stages of a multi-stage circuit

Publications (1)

Publication Number Publication Date
HK1063888A1 true HK1063888A1 (en) 2005-01-14

Family

ID=24826238

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04106568A HK1063888A1 (en) 2000-11-01 2004-09-01 Method and apparatus for controlling stages of a multi-stage circuit

Country Status (12)

Country Link
US (1) US6407689B1 (xx)
EP (1) EP1421697B1 (xx)
JP (1) JP3917518B2 (xx)
CN (1) CN1265556C (xx)
AT (1) ATE376283T1 (xx)
AU (1) AU2002227187A1 (xx)
BR (1) BR0115060A (xx)
CA (1) CA2427423C (xx)
DE (1) DE60131027T2 (xx)
HK (1) HK1063888A1 (xx)
IL (2) IL155694A0 (xx)
WO (1) WO2002037686A2 (xx)

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Also Published As

Publication number Publication date
DE60131027D1 (de) 2007-11-29
EP1421697A2 (en) 2004-05-26
CN1509519A (zh) 2004-06-30
EP1421697B1 (en) 2007-10-17
IL155694A0 (en) 2003-11-23
JP3917518B2 (ja) 2007-05-23
WO2002037686A3 (en) 2004-02-19
ATE376283T1 (de) 2007-11-15
CA2427423C (en) 2009-09-29
CA2427423A1 (en) 2002-05-10
DE60131027T2 (de) 2008-07-17
JP2004529518A (ja) 2004-09-24
WO2002037686A2 (en) 2002-05-10
US6407689B1 (en) 2002-06-18
IL155694A (en) 2008-04-13
CN1265556C (zh) 2006-07-19
AU2002227187A1 (en) 2002-05-15
BR0115060A (pt) 2005-10-18

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Legal Events

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

Effective date: 20111031