JPS623133U - - Google Patents

Info

Publication number
JPS623133U
JPS623133U JP9477385U JP9477385U JPS623133U JP S623133 U JPS623133 U JP S623133U JP 9477385 U JP9477385 U JP 9477385U JP 9477385 U JP9477385 U JP 9477385U JP S623133 U JPS623133 U JP S623133U
Authority
JP
Japan
Prior art keywords
input circuit
circuit
antenna input
antenna
changeover switch
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
JP9477385U
Other languages
Japanese (ja)
Other versions
JPH0323722Y2 (en
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 filed Critical
Priority to JP9477385U priority Critical patent/JPH0323722Y2/ja
Publication of JPS623133U publication Critical patent/JPS623133U/ja
Application granted granted Critical
Publication of JPH0323722Y2 publication Critical patent/JPH0323722Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す図、第２図は
従来例を示す図、第３図は第１図及び第２図に適
用される集積回路の一例を示す図である。 １３……集積回路、１６……ＡＭアンテナ入力
回路、２０……ダイオード、２１……バンド切換
スイツチ。 FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a conventional example, and FIG. 3 is a diagram showing an example of an integrated circuit applied to FIGS. 1 and 2. 13... integrated circuit, 16 ... AM antenna input circuit, 20... diode, 21... band selection switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＡＭアンテナ入力回路と、このＡＭアンテナ入
力回路にて受信された受信信号が印加される混合
回路と、この混合回路のバイアス電圧線路と混合
回路の信号入力端との間に配置されたダイオード
と、すくなくともＦＭ側端子がＡＭアンテナ入力
回路の一端に接続されると共に共通端子が接地さ
れたバンド切換スイツチとを備え、バンド切換ス
イツチがＦＭ側に設定されたとき、前記ダイオー
ドを導通させることにより前記ＡＭアンテナ入力
回路を短絡するようにしたことを特徴とするＦＭ
・ＡＭラジオ受信機。 an AM antenna input circuit, a mixing circuit to which a received signal received by the AM antenna input circuit is applied, a diode disposed between a bias voltage line of the mixing circuit and a signal input end of the mixing circuit; a band changeover switch whose FM side terminal is connected to one end of an AM antenna input circuit and whose common terminal is grounded; and when the band changeover switch is set to the FM side, the AM antenna is turned on by making the diode conductive. FM characterized by short-circuiting the antenna input circuit
・AM radio receiver.
JP9477385U 1985-06-21 1985-06-21 Expired JPH0323722Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9477385U JPH0323722Y2 (en) 1985-06-21 1985-06-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9477385U JPH0323722Y2 (en) 1985-06-21 1985-06-21

Publications (2)

Publication Number Publication Date
JPS623133U true JPS623133U (en) 1987-01-09
JPH0323722Y2 JPH0323722Y2 (en) 1991-05-23

Family

ID=30653532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9477385U Expired JPH0323722Y2 (en) 1985-06-21 1985-06-21

Country Status (1)

Country Link
JP (1) JPH0323722Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01105623A (en) * 1987-10-19 1989-04-24 Nippon Technical Co Ltd Antenna circuit in radio receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01105623A (en) * 1987-10-19 1989-04-24 Nippon Technical Co Ltd Antenna circuit in radio receiver

Also Published As

Publication number Publication date
JPH0323722Y2 (en) 1991-05-23

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