JPS56136028A - D-a converter - Google Patents

D-a converter

Info

Publication number
JPS56136028A
JPS56136028A JP3941580A JP3941580A JPS56136028A JP S56136028 A JPS56136028 A JP S56136028A JP 3941580 A JP3941580 A JP 3941580A JP 3941580 A JP3941580 A JP 3941580A JP S56136028 A JPS56136028 A JP S56136028A
Authority
JP
Japan
Prior art keywords
register
bit information
gate
bit
comparator
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
JP3941580A
Other languages
Japanese (ja)
Inventor
Masatoshi Imai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3941580A priority Critical patent/JPS56136028A/en
Publication of JPS56136028A publication Critical patent/JPS56136028A/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
    • H03M1/68—Digital/analogue converters with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits

Abstract

PURPOSE:To perform the D-A conversion of [n+I] bits by making bit-by-bity corrections as many times as I-bit information when repeating n-bit information 2I times and 1-bit information on LSBI times. CONSTITUTION:When [n+1] is [1011], n-bit information [10] is stored in register 7 by way of gate 2, register 3 and gate 6, and I-bit information [11] is inputted to decoder 8 via gate 4 and register 5 to be converted into [0111], which is stored in register 10 via gate 9. Counter 14 counts reference clock cf, and comparator 17 compares the count value with the contents of register 7. Assuming that the counting operation starts with [0], comparator 17 generates a coincidence output on counting up to [2]. On the other hand, since the series output of register 10 is [1], FF20 is not reset, but set one bit later.
JP3941580A 1980-03-27 1980-03-27 D-a converter Pending JPS56136028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3941580A JPS56136028A (en) 1980-03-27 1980-03-27 D-a converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3941580A JPS56136028A (en) 1980-03-27 1980-03-27 D-a converter

Publications (1)

Publication Number Publication Date
JPS56136028A true JPS56136028A (en) 1981-10-23

Family

ID=12552344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3941580A Pending JPS56136028A (en) 1980-03-27 1980-03-27 D-a converter

Country Status (1)

Country Link
JP (1) JPS56136028A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977721A (en) * 1982-10-26 1984-05-04 Matsushita Electric Ind Co Ltd Pulse width modulator
JPS6040136U (en) * 1983-08-26 1985-03-20 株式会社安川電機 Digital pulse width conversion circuit
JPS6116626A (en) * 1983-12-20 1986-01-24 アメリカン　マイクロシステムズ，インコ−ポレイテツド Digital-to-analog converter using pulse width modulation
JPS61242422A (en) * 1985-04-19 1986-10-28 Sanyo Electric Co Ltd D-a converting circuit
JPS6242620A (en) * 1985-08-20 1987-02-24 Sanyo Electric Co Ltd Pwm type d/a converting circuit
JPH0353041U (en) * 1989-09-27 1991-05-22

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977721A (en) * 1982-10-26 1984-05-04 Matsushita Electric Ind Co Ltd Pulse width modulator
JPH0123967B2 (en) * 1982-10-26 1989-05-09 Matsushita Electric Ind Co Ltd
JPS6040136U (en) * 1983-08-26 1985-03-20 株式会社安川電機 Digital pulse width conversion circuit
JPH0124986Y2 (en) * 1983-08-26 1989-07-27
JPS6116626A (en) * 1983-12-20 1986-01-24 アメリカン　マイクロシステムズ，インコ−ポレイテツド Digital-to-analog converter using pulse width modulation
JPS61242422A (en) * 1985-04-19 1986-10-28 Sanyo Electric Co Ltd D-a converting circuit
JPS6242620A (en) * 1985-08-20 1987-02-24 Sanyo Electric Co Ltd Pwm type d/a converting circuit
JPH0353041U (en) * 1989-09-27 1991-05-22

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