JPS5469934A - Termination system of logic circuit - Google Patents

Termination system of logic circuit

Info

Publication number
JPS5469934A
JPS5469934A JP13664277A JP13664277A JPS5469934A JP S5469934 A JPS5469934 A JP S5469934A JP 13664277 A JP13664277 A JP 13664277A JP 13664277 A JP13664277 A JP 13664277A JP S5469934 A JPS5469934 A JP S5469934A
Authority
JP
Japan
Prior art keywords
terminals
terminating
transmission line
waveform distortion
circuits
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
JP13664277A
Other languages
Japanese (ja)
Inventor
Sumio Yoshida
Yoshimasa Kaneko
Kunio Aoki
Minoru Unzai
Shinichiro Obara
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.)
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP13664277A priority Critical patent/JPS5469934A/en
Publication of JPS5469934A publication Critical patent/JPS5469934A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/017545—Coupling arrangements; Impedance matching circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Logic Circuits (AREA)
  • Dc Digital Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To reduce waveform distortion caused by a reflected signal by providing required terminating circuits to both the terminals of a transmission line to which a plural number of current change-over type digital integrated circuits (CML) are connected. CONSTITUTION:Terminating circuits composed of terminating resistances 13 and 15, and DC power supplies 14 and 16 are provided to terminals 11 and 12 of transmission line 1 to which CMLs 2 to 7 are connected, and resistance values of those terminating resistances 13 and 15 are set between 1.4 and 2.6Z0 denoting characteristic impedance of the line by Z0. As a result, reflection coefficients at terminals 11 and 12 are decreased to approximate one third, so that the waveform distortion will be reduced to one third of conventional one.
JP13664277A 1977-11-16 1977-11-16 Termination system of logic circuit Pending JPS5469934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13664277A JPS5469934A (en) 1977-11-16 1977-11-16 Termination system of logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13664277A JPS5469934A (en) 1977-11-16 1977-11-16 Termination system of logic circuit

Publications (1)

Publication Number Publication Date
JPS5469934A true JPS5469934A (en) 1979-06-05

Family

ID=15180076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13664277A Pending JPS5469934A (en) 1977-11-16 1977-11-16 Termination system of logic circuit

Country Status (1)

Country Link
JP (1) JPS5469934A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575738U (en) * 1980-06-05 1982-01-12
GB2421673A (en) * 2004-10-06 2006-06-28 Yazaki Corp Reducing switching oscillation in a vehicle communication system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988427A (en) * 1972-12-25 1974-08-23
JPS5029117A (en) * 1973-07-17 1975-03-25
JPS5287312A (en) * 1976-01-16 1977-07-21 Osaka Gas Co Ltd Radio communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988427A (en) * 1972-12-25 1974-08-23
JPS5029117A (en) * 1973-07-17 1975-03-25
JPS5287312A (en) * 1976-01-16 1977-07-21 Osaka Gas Co Ltd Radio communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575738U (en) * 1980-06-05 1982-01-12
GB2421673A (en) * 2004-10-06 2006-06-28 Yazaki Corp Reducing switching oscillation in a vehicle communication system
GB2421673B (en) * 2004-10-06 2007-04-11 Yazaki Corp Vehicle communication system

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