KR880008521A - 디지탈 회로장치 - Google Patents

디지탈 회로장치 Download PDF

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Publication number
KR880008521A
KR880008521A KR1019870014064A KR870014064A KR880008521A KR 880008521 A KR880008521 A KR 880008521A KR 1019870014064 A KR1019870014064 A KR 1019870014064A KR 870014064 A KR870014064 A KR 870014064A KR 880008521 A KR880008521 A KR 880008521A
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KR
South Korea
Prior art keywords
coupled
input
output
quantizer
adder stage
Prior art date
Application number
KR1019870014064A
Other languages
English (en)
Other versions
KR960006644B1 (en
Inventor
브라디날 베르너
Original Assignee
이반 밀러 레르너
엔.브이.필립스 글로아이람펜파브리켄
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 이반 밀러 레르너, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 이반 밀러 레르너
Publication of KR880008521A publication Critical patent/KR880008521A/ko
Application granted granted Critical
Publication of KR960006644B1 publication Critical patent/KR960006644B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • 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
    • 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)
  • Analogue/Digital Conversion (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Communication Control (AREA)
  • Noise Elimination (AREA)

Abstract

내용 없음.

Description

디지털 회로장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 디지털 회로장치의 제1실시예.
제2도는 제1도의 다른 회로 소자의 전달 특성도,
제3도는 제2도에 사용된 잡음 정형기의 단순 실시예.

Claims (4)

  1. 이산-진폭샘플의 시퀀스로 나타나는 디지털 입력 신호를 특정 샘플링 비율로 오버샘플링하기 위한 보간 필터(1)와, 출력은 양자화기(7)에 결합되고 제1입력은 보간 필터(1)에 결합되어 있으며 제2입력은 양자 화기의 양자화 에러 신호를 여파하기 위한 제2차 필터장치(4)에 결합되는 가산기단(3)을 포함하는 잡음 정형기(2)와, 양자화기(7)의 출력에 결합된 디지털-아날로그 변환기(8)를 구비하는 디지털 회로장치에 있어서, 라미터(10)가 가산기단(3)의 제2입력전에 배치되는 것을 특징으로 하는 디지털 회로장치.
  2. 제1항에 있어서 상기 디지털 회로장치가 양자화 에러 신호를 발생하기 위한 감산기(6)를 구비하되, 상기 감산기(6)의 제1입력은 가산기단(3)의 출력에 결합되고, 제2입력은 양자화기(7)의 출력에 결합되며, 그 출력은 가산기단(3)의 제2입력에 결합된 출력을 갖는 필터장치(4)의 입력에 결합되는 출력을 갖는 리미터(10)의 입력에 결합되는 것을 특징으로 하는 디지털 회로장치.
  3. 제2항에 있어서, 상기 필터장치(4)는 입력이 리미터(10)에 결합되고 출력이 증폭기(13)와 제2레지스터(14)에 결합되는 제1레지스터(12)를 구비하고, 또한 상기 필터장치(4)는 제1입력이 제2레지스터(14)에 결합되고 제2입력이 증폭기(13)에 결합되며 출력이 필터장치(4)의 출력에 결합되는 다른 감산기(16)를 구비하는 것을 특징으로 하는 디지털 회로장치.
  4. 제1항, 2항 또는 제3항에 있어서, 상기 양자화기(7)는 만일 상기 가산기단(3)의 출력 신호가 정이면 제1상태를 취하고 상기 가산기단(3)의 출력이 부이면 제2상태를 취하는 1비트 신호를 발생하기 적합한 것을 특징으로 하는 디지털 회로장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR87014064A 1986-12-10 1987-12-10 Digital circuit device KR960006644B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NLP3642168.5 1986-12-10
DE19863642168 DE3642168A1 (de) 1986-12-10 1986-12-10 Digitale schaltungsanordnung zur verringerung des quantisierungsrauschens

Publications (2)

Publication Number Publication Date
KR880008521A true KR880008521A (ko) 1988-08-31
KR960006644B1 KR960006644B1 (en) 1996-05-22

Family

ID=6315880

Family Applications (1)

Application Number Title Priority Date Filing Date
KR87014064A KR960006644B1 (en) 1986-12-10 1987-12-10 Digital circuit device

Country Status (7)

Country Link
US (1) US4859883A (ko)
EP (1) EP0271166B1 (ko)
JP (1) JP2613900B2 (ko)
KR (1) KR960006644B1 (ko)
AT (1) ATE103435T1 (ko)
BR (1) BR8706707A (ko)
DE (2) DE3642168A1 (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3744132A1 (de) * 1987-12-24 1989-07-06 Asea Brown Boveri Verfahren und schaltung zur unterdrueckung des quantisierungsrauschens
GB8829063D0 (en) * 1988-12-13 1989-01-25 British Telecomm Predictive coding and decoding
NL8901142A (nl) * 1989-05-08 1990-12-03 Philips Nv Inrichting voor het uitlezen van een op een registratiedrager aangebracht informatiepatroon, alsmede een signaalverwerkingsschakeling voor toepassing in een dergelijke inrichting.
US5057785A (en) * 1990-01-23 1991-10-15 International Business Machines Corporation Method and circuitry to suppress additive disturbances in data channels
GB9103777D0 (en) * 1991-02-22 1991-04-10 B & W Loudspeakers Analogue and digital convertors
AU682032B2 (en) * 1993-06-29 1997-09-18 Sony Corporation Audio signal transmitting apparatus and the method thereof
US5602874A (en) * 1994-12-29 1997-02-11 Motorola, Inc. Method and apparatus for reducing quantization noise
DE19509117C2 (de) * 1995-03-17 1997-02-27 Bosch Gmbh Robert Verfahren zur Überwachung der Übertragungsqualität digitalisierter Signale
US5708389A (en) * 1996-03-15 1998-01-13 Lucent Technologies Inc. Integrated circuit employing quantized feedback
DE19912447C2 (de) * 1999-03-19 2002-02-28 Micronas Gmbh Anordnung zum Erzeugen eines in seiner Bitbreite begrenzten digitalen Signals und Digital/Analog-Umsetzer mit vergrößertem Wertebereich
EP1505736A4 (en) * 2002-05-09 2005-09-14 Neuro Solution Corp DIGITAL / ANALOG CONVERTER
US7345606B2 (en) * 2004-01-28 2008-03-18 Nxp B.V. DA-converter system and a method for converting a multi-bit digital signal to an analog signal
US6956513B1 (en) * 2004-10-22 2005-10-18 Broadcom Corporation Error feedback structure for delta-sigma modulators with improved stability
EP3447922A4 (en) * 2017-06-15 2019-02-27 Shenzhen Goodix Technology Co., Ltd. NOISE SHAPING CIRCUIT AND INTEGRATED TRIGONOMETRIC DIGITAL-TO-ANALOG CONVERTER

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109110A (en) * 1975-02-20 1978-08-22 International Standard Electric Corporation Digital-to-analog converter
NL173339C (nl) * 1978-11-30 1984-01-02 Philips Nv Digitaal-analoog omzetter.
DE3021012C2 (de) * 1980-06-03 1985-08-22 ANT Nachrichtentechnik GmbH, 7150 Backnang Verallgemeinertes interpolativers Verfahren zur Digital-Analog-Umsetzung von PCM Signalen
GB8427325D0 (en) * 1984-10-29 1984-12-05 Plessey Co Plc Digital to analogue conversion
NL8600862A (nl) * 1986-04-04 1987-11-02 Philips Nv Kodeerinrichting.

Also Published As

Publication number Publication date
EP0271166A3 (de) 1991-06-26
JPS63161713A (ja) 1988-07-05
EP0271166B1 (de) 1994-03-23
ATE103435T1 (de) 1994-04-15
KR960006644B1 (en) 1996-05-22
JP2613900B2 (ja) 1997-05-28
US4859883A (en) 1989-08-22
DE3789426D1 (de) 1994-04-28
EP0271166A2 (de) 1988-06-15
DE3642168A1 (de) 1988-06-16
BR8706707A (pt) 1988-07-19

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