JPS5620329A - Decoding circuit - Google Patents

Decoding circuit

Info

Publication number
JPS5620329A
JPS5620329A JP9653679A JP9653679A JPS5620329A JP S5620329 A JPS5620329 A JP S5620329A JP 9653679 A JP9653679 A JP 9653679A JP 9653679 A JP9653679 A JP 9653679A JP S5620329 A JPS5620329 A JP S5620329A
Authority
JP
Japan
Prior art keywords
switches
capacitor
converter
timing
decoding
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.)
Granted
Application number
JP9653679A
Other languages
Japanese (ja)
Other versions
JPS5938768B2 (en
Inventor
Atsushi Iwata
Hiroyuki Kikuchi
Kuniharu Uchimura
Yasuyuki Matsutani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9653679A priority Critical patent/JPS5938768B2/en
Publication of JPS5620329A publication Critical patent/JPS5620329A/en
Publication of JPS5938768B2 publication Critical patent/JPS5938768B2/en
Expired 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
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

PURPOSE:To make it possible to attain LSI-implementation easily by simplifying a D/A converter by decoding an analog signal, obtained by D/A-converting an input digital signal, after interpolating it by a switched capacitor filter. CONSTITUTION:Of an n-bit digital input, n-1 low order bits other than a code bit are supplied to D/A converter 11, which outputs the absolute value of an output signal. This output is charged in capacitor 15 with switches 13 and 14 on at the 1st timing or in capacitor 15 with switches 16 and 24 on. The electric charge of this capacitor 15 is transferred to differentiating circuit 21 with switches 17 and 14 on at the 2nd timing. In accordance with the code bit of the digital input, switches 13 and 14 or 16 and 24 are turned on at the 1st timing to send out a decoding ouput. Consequently, the D/A converter is simplified to facilitate LSI-implementation.
JP9653679A 1979-07-27 1979-07-27 decoding circuit Expired JPS5938768B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9653679A JPS5938768B2 (en) 1979-07-27 1979-07-27 decoding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9653679A JPS5938768B2 (en) 1979-07-27 1979-07-27 decoding circuit

Publications (2)

Publication Number Publication Date
JPS5620329A true JPS5620329A (en) 1981-02-25
JPS5938768B2 JPS5938768B2 (en) 1984-09-19

Family

ID=14167832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9653679A Expired JPS5938768B2 (en) 1979-07-27 1979-07-27 decoding circuit

Country Status (1)

Country Link
JP (1) JPS5938768B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721127A (en) * 1980-07-15 1982-02-03 Sanyo Electric Co Ltd Digital-to-analog converter
JPS57202126A (en) * 1981-06-05 1982-12-10 Toko Inc Digital-to-analog converter
US4851844A (en) * 1985-05-09 1989-07-25 Sony Corporation D/A converter with switched capacitor control
JP2007531447A (en) * 2004-03-27 2007-11-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ DA converter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721127A (en) * 1980-07-15 1982-02-03 Sanyo Electric Co Ltd Digital-to-analog converter
JPS57202126A (en) * 1981-06-05 1982-12-10 Toko Inc Digital-to-analog converter
JPH0232814B2 (en) * 1981-06-05 1990-07-24 Eastern Steel
US4851844A (en) * 1985-05-09 1989-07-25 Sony Corporation D/A converter with switched capacitor control
JP2007531447A (en) * 2004-03-27 2007-11-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ DA converter

Also Published As

Publication number Publication date
JPS5938768B2 (en) 1984-09-19

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