AU2001296316A1 - Digital to analog converter employing sigma-delta loop and feedback dac model - Google Patents

Digital to analog converter employing sigma-delta loop and feedback dac model

Info

Publication number
AU2001296316A1
AU2001296316A1 AU2001296316A AU9631601A AU2001296316A1 AU 2001296316 A1 AU2001296316 A1 AU 2001296316A1 AU 2001296316 A AU2001296316 A AU 2001296316A AU 9631601 A AU9631601 A AU 9631601A AU 2001296316 A1 AU2001296316 A1 AU 2001296316A1
Authority
AU
Australia
Prior art keywords
dac
signal
digital
sigma
delta loop
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
AU2001296316A
Inventor
Timothy W. Sheen
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.)
Teradyne Inc
Original Assignee
Teradyne 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 Teradyne Inc filed Critical Teradyne Inc
Publication of AU2001296316A1 publication Critical patent/AU2001296316A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • 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
    • 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
    • H03M3/50—Digital/analogue converters using delta-sigma modulation as an intermediate step

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A circuit topology and method for converting a digital input signal to an analog output signal employs a modified sigma-delta loop and a DAC, and operates with improved accuracy over a wide frequency range. A loop filter such as a digital accumulator receives an input signal proportional to the difference between a digital input signal and a feedback signal. A quantizer quantizes the output of the loop filter, and the DAC converts the quantized signal into an analog output signal. The quantized signal is also provided to a DAC model. In response to the quantized signal and behavioral information about the DAC, the DAC model varies the feedback signal to match expected output signals from the DAC, including errors introduced by the DAC. By the operation of the sigma-delta loop, the errors of the DAC are substantially reduced.
AU2001296316A 2000-09-29 2001-09-26 Digital to analog converter employing sigma-delta loop and feedback dac model Abandoned AU2001296316A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/676,064 US6404369B1 (en) 2000-09-29 2000-09-29 Digital to analog converter employing sigma-delta loop and feedback DAC model
US09/676,064 2000-09-29
PCT/US2001/030056 WO2002027944A2 (en) 2000-09-29 2001-09-26 Digital to analog converter employing sigma-delta loop and feedback dac model

Publications (1)

Publication Number Publication Date
AU2001296316A1 true AU2001296316A1 (en) 2002-04-08

Family

ID=24713083

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001296316A Abandoned AU2001296316A1 (en) 2000-09-29 2001-09-26 Digital to analog converter employing sigma-delta loop and feedback dac model

Country Status (9)

Country Link
US (1) US6404369B1 (en)
EP (1) EP1354410B1 (en)
JP (1) JP4440539B2 (en)
KR (1) KR100829024B1 (en)
AT (1) ATE359623T1 (en)
AU (1) AU2001296316A1 (en)
DE (1) DE60127865T2 (en)
TW (1) TW518831B (en)
WO (1) WO2002027944A2 (en)

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US6515604B2 (en) * 2000-04-17 2003-02-04 Tripath Technology, Inc. Mixed signal processing unit with improved distortion and noise characteristics
US6946983B2 (en) * 2002-04-26 2005-09-20 Telefonaktiebolaget L M Ericcson Digital-to-analog converter having error correction
SE523353C2 (en) * 2002-04-26 2004-04-13 Ericsson Telefon Ab L M Digital / Analog converter with error compensation
US7346113B2 (en) * 2002-07-26 2008-03-18 Texas Instruments Incorporated Method and circuit for stop of signals quantized using noise-shaping
US7894536B2 (en) * 2003-04-15 2011-02-22 Texas Instruments Incorporated Calibration model to mitigate data conversion errors
GB2408858B (en) * 2003-12-05 2006-11-29 Wolfson Ltd Word length reduction circuit
KR100631872B1 (en) * 2004-03-31 2006-10-04 윤홍일 BIST and BISC apparatus for analog-to-digital converter
DE602004015276D1 (en) * 2004-08-06 2008-09-04 Verigy Pte Ltd Singapore Improved analog signal generation by means of a delta-sigma modulator
US7250887B2 (en) * 2004-10-25 2007-07-31 Broadcom Corporation System and method for spur cancellation
US7425910B1 (en) 2006-02-27 2008-09-16 Marvell International Ltd. Transmitter digital-to-analog converter with noise shaping
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US7667408B2 (en) 2007-03-12 2010-02-23 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
US7554473B2 (en) 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US7696913B2 (en) 2007-05-02 2010-04-13 Cirrus Logic, Inc. Signal processing system using delta-sigma modulation having an internal stabilizer path with direct output-to-integrator connection
WO2008144558A1 (en) * 2007-05-16 2008-11-27 Intellectual Ventures Holding 40 Llc Low-power digital-to-analog converter
US7825844B2 (en) * 2008-02-06 2010-11-02 Qualcomm Incorporated Adaptive high-order digital-to-analog conversion
US8963535B1 (en) 2009-06-30 2015-02-24 Cirrus Logic, Inc. Switch controlled current sensing using a hall effect sensor
US7999709B2 (en) * 2009-08-03 2011-08-16 Freescale Semiconductor, Inc. Continuous-time image-reject filter with discrete-time feedback
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
US9455736B2 (en) * 2014-12-22 2016-09-27 Onkyo Corporation ΔΣ modulator and program of ΔΣ modulator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829236A (en) 1987-10-30 1989-05-09 Teradyne, Inc. Digital-to-analog calibration system
US4977403A (en) 1988-07-29 1990-12-11 Hughes Aircraft Company Digital correction circuit for data converters
JPH07109991B2 (en) * 1989-06-05 1995-11-22 日本ビクター株式会社 Noise shaping type requantization circuit
US4996530A (en) * 1989-11-27 1991-02-26 Hewlett-Packard Company Statistically based continuous autocalibration method and apparatus
JP3011424B2 (en) * 1990-01-24 2000-02-21 株式会社東芝 A / D converter
JPH0421215A (en) * 1990-05-16 1992-01-24 Sony Corp Digital/analog converter
GB9209498D0 (en) 1992-05-01 1992-06-17 Univ Waterloo Multi-bit dac with dynamic element matching
US5745061A (en) * 1995-07-28 1998-04-28 Lucent Technologies Inc. Method of improving the stability of a sigma-delta modulator employing dither
US5815102A (en) 1996-06-12 1998-09-29 Audiologic, Incorporated Delta sigma pwm dac to reduce switching
JPH1127151A (en) * 1997-07-02 1999-01-29 Sony Corp Sigma delta modulator
US6271781B1 (en) * 1998-06-10 2001-08-07 Lockheed Martin Corporation Nonlinear filter correction of multibit ΣΔ modulators
JP2000022544A (en) * 1998-07-01 2000-01-21 Mitsubishi Electric Corp Da conversion device
WO2000008765A2 (en) * 1998-08-06 2000-02-17 Steensgaard Madsen Jesper Delta-sigma a/d converter

Also Published As

Publication number Publication date
KR100829024B1 (en) 2008-05-14
WO2002027944A3 (en) 2003-08-14
US6404369B1 (en) 2002-06-11
WO2002027944A2 (en) 2002-04-04
TW518831B (en) 2003-01-21
KR20030036853A (en) 2003-05-09
JP2004510383A (en) 2004-04-02
EP1354410A2 (en) 2003-10-22
JP4440539B2 (en) 2010-03-24
DE60127865D1 (en) 2007-05-24
DE60127865T2 (en) 2008-01-17
ATE359623T1 (en) 2007-05-15
EP1354410B1 (en) 2007-04-11

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