AU510634B2 - Ladderless d/a converter - Google Patents

Ladderless d/a converter

Info

Publication number
AU510634B2
AU510634B2 AU21842/77A AU2184277A AU510634B2 AU 510634 B2 AU510634 B2 AU 510634B2 AU 21842/77 A AU21842/77 A AU 21842/77A AU 2184277 A AU2184277 A AU 2184277A AU 510634 B2 AU510634 B2 AU 510634B2
Authority
AU
Australia
Prior art keywords
ladderless
converter
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.)
Expired
Application number
AU21842/77A
Other languages
English (en)
Other versions
AU2184277A (en
Inventor
T Muci
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of AU2184277A publication Critical patent/AU2184277A/en
Application granted granted Critical
Publication of AU510634B2 publication Critical patent/AU510634B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • 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
    • H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
    • H03M1/827—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation in which the total pulse width is distributed over multiple shorter pulse widths
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0626—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by filtering
    • H03M1/0631—Smoothing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Analogue/Digital Conversion (AREA)
AU21842/77A 1976-01-29 1977-02-01 Ladderless d/a converter Expired AU510634B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP868576A JPS5291638A (en) 1976-01-29 1976-01-29 D/a converter
JPJP8685/76 1976-01-29

Publications (2)

Publication Number Publication Date
AU2184277A AU2184277A (en) 1978-08-10
AU510634B2 true AU510634B2 (en) 1980-07-03

Family

ID=11699764

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21842/77A Expired AU510634B2 (en) 1976-01-29 1977-02-01 Ladderless d/a converter

Country Status (8)

Country Link
US (1) US4139840A (OSRAM)
JP (1) JPS5291638A (OSRAM)
AU (1) AU510634B2 (OSRAM)
CA (1) CA1088208A (OSRAM)
DE (1) DE2703570A1 (OSRAM)
FR (1) FR2339997A1 (OSRAM)
GB (1) GB1552616A (OSRAM)
NL (1) NL7700997A (OSRAM)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157630A (en) * 1981-03-25 1982-09-29 Nakamichi Corp Signal converting circuit
US4667337A (en) * 1985-08-28 1987-05-19 Westinghouse Electric Corp. Integrated circuit having outputs configured for reduced state changes
US4969164A (en) * 1989-04-27 1990-11-06 Advanced Micro Devices, Inc. Programmable threshold detection logic for a digital storage buffer
DE4432065A1 (de) * 1994-09-09 1996-03-14 Lueder Ernst Verfahren und Schaltungsanordnung zur Wandlung eines digitalen Datenwortes mit N Bit in einen analogen Spannungswert
US7640444B2 (en) * 2006-01-26 2009-12-29 Nils Graef Systems and methods for low power bus operation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648275A (en) * 1970-04-03 1972-03-07 Nasa Buffered analog converter
US3646545A (en) * 1970-06-04 1972-02-29 Singer Co Ladderless digital-to-analog converter
US3786488A (en) * 1971-12-30 1974-01-15 Woodward Governor Co Algebraic summing digital-to-analog converter

Also Published As

Publication number Publication date
AU2184277A (en) 1978-08-10
FR2339997A1 (fr) 1977-08-26
FR2339997B1 (OSRAM) 1983-03-04
US4139840A (en) 1979-02-13
DE2703570C2 (OSRAM) 1987-07-30
CA1088208A (en) 1980-10-21
JPS5291638A (en) 1977-08-02
NL7700997A (nl) 1977-08-02
DE2703570A1 (de) 1977-08-04
GB1552616A (en) 1979-09-19

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