JPS5462758A - Attenuator - Google Patents

Attenuator

Info

Publication number
JPS5462758A
JPS5462758A JP12939377A JP12939377A JPS5462758A JP S5462758 A JPS5462758 A JP S5462758A JP 12939377 A JP12939377 A JP 12939377A JP 12939377 A JP12939377 A JP 12939377A JP S5462758 A JPS5462758 A JP S5462758A
Authority
JP
Japan
Prior art keywords
trs
attenuator
emitters
collectors
resistances
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
JP12939377A
Other languages
Japanese (ja)
Other versions
JPS6148291B2 (en
Inventor
Ryuichi Kioka
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12939377A priority Critical patent/JPS5462758A/en
Publication of JPS5462758A publication Critical patent/JPS5462758A/en
Publication of JPS6148291B2 publication Critical patent/JPS6148291B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/24—Frequency-independent attenuators

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

PURPOSE:To obtain an attenuator with its distortion improved by making collectors and emitters of two Trs opposite in direction by connecting the 2nd attenuator circuit to the connection point of the lst attenuator circuit composed of a resistance and transistor Tr connected in series. CONSTITUTION:An AC input signal is outputted from terminal 9 by way of capacitor C5, resistances R6 and R11, and C8. With switch 2 ON, Trs 7 and 12 both turn ON, and denoting values of operating resistances of Trs 7 and 12 by R7 and R12 respectively results in that the attenuationa mount will be as shown by equation by I. Since collectors and emitters of Trs 7 and 12 are connected in the opposite direction, the non-linearity caused by Tr7 is corrected by the non-linearity of Tr12, so that AC signals with small distortion will appear at the output terminal.
JP12939377A 1977-10-27 1977-10-27 Attenuator Granted JPS5462758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12939377A JPS5462758A (en) 1977-10-27 1977-10-27 Attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12939377A JPS5462758A (en) 1977-10-27 1977-10-27 Attenuator

Publications (2)

Publication Number Publication Date
JPS5462758A true JPS5462758A (en) 1979-05-21
JPS6148291B2 JPS6148291B2 (en) 1986-10-23

Family

ID=15008456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12939377A Granted JPS5462758A (en) 1977-10-27 1977-10-27 Attenuator

Country Status (1)

Country Link
JP (1) JPS5462758A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4883758A (en) * 1972-02-01 1973-11-08
JPS5047544A (en) * 1974-05-13 1975-04-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4883758A (en) * 1972-02-01 1973-11-08
JPS5047544A (en) * 1974-05-13 1975-04-28

Also Published As

Publication number Publication date
JPS6148291B2 (en) 1986-10-23

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