JPS57123730A - Da converting circuit - Google Patents

Da converting circuit

Info

Publication number
JPS57123730A
JPS57123730A JP835181A JP835181A JPS57123730A JP S57123730 A JPS57123730 A JP S57123730A JP 835181 A JP835181 A JP 835181A JP 835181 A JP835181 A JP 835181A JP S57123730 A JPS57123730 A JP S57123730A
Authority
JP
Japan
Prior art keywords
signal
converter
range
supplied
input
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.)
Pending
Application number
JP835181A
Other languages
Japanese (ja)
Inventor
Masaru Moriyama
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
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 Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP835181A priority Critical patent/JPS57123730A/en
Publication of JPS57123730A publication Critical patent/JPS57123730A/en
Pending 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
    • H03M1/70—Automatic control for modifying converter range

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To obtain a DA converting circuit with high performance at low cost, by varying the signal range of an input digital signal supplied to the DA converter on the basis of an information range signal. CONSTITUTION:While an input digital signal supplied to an input terminal 1 is shifted in a shift register SR, a signal which shows the information range of the input digital signal is obtained. Then, input information which corresponds to the information range of the input digital signal is supplied to a DA converter DAC1 and a range bit is generated on the basis of said signal showing the information range and then supplied to a DA converter DAC2, thus obtaining an external reference input signal to the DA converter DAC1 as the output of the DA converter DAC2. Therefore, polygonal expansion operation is performed easily with the simple constitution.
JP835181A 1981-01-22 1981-01-22 Da converting circuit Pending JPS57123730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP835181A JPS57123730A (en) 1981-01-22 1981-01-22 Da converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP835181A JPS57123730A (en) 1981-01-22 1981-01-22 Da converting circuit

Publications (1)

Publication Number Publication Date
JPS57123730A true JPS57123730A (en) 1982-08-02

Family

ID=11690797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP835181A Pending JPS57123730A (en) 1981-01-22 1981-01-22 Da converting circuit

Country Status (1)

Country Link
JP (1) JPS57123730A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01293011A (en) * 1988-05-20 1989-11-27 Toshiba Corp Variable gain d/a converter
JPH06132828A (en) * 1992-10-14 1994-05-13 Mitsubishi Electric Corp D / A converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01293011A (en) * 1988-05-20 1989-11-27 Toshiba Corp Variable gain d/a converter
JPH06132828A (en) * 1992-10-14 1994-05-13 Mitsubishi Electric Corp D / A converter

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