JPS59166536U - RF switch with attenuator - Google Patents
RF switch with attenuatorInfo
- Publication number
- JPS59166536U JPS59166536U JP6259483U JP6259483U JPS59166536U JP S59166536 U JPS59166536 U JP S59166536U JP 6259483 U JP6259483 U JP 6259483U JP 6259483 U JP6259483 U JP 6259483U JP S59166536 U JPS59166536 U JP S59166536U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- circuit
- attenuator
- distribution
- antenna
- 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
Links
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のＲＦスイッチのブロック図、第２図は本
考案に係るアッテネータ付ＲＦスイッチノフロック図、
第３図は第２図のＲＦスイッチの具体的回路図、及び第
４図は第３図の減衰回路の他の具体的回路図である。
−
１０・・・・・・アッテネータ付ＲＦスイッチ、１１・
・・・・・アンテナ用入力端子、１２・・・・・・テレ
ビ用出力端子、１３・・・・・・減衰回路、１４・・・
・・・分配回路、１５・・・・・・選択回路、１６・・
・・・・ＶＴＲ用端子、１８・・・・・・変調用端子、
１９・・・・・・スイッチ回路。Fig. 1 is a block diagram of a conventional RF switch, Fig. 2 is a block diagram of an RF switch with an attenuator according to the present invention,
3 is a specific circuit diagram of the RF switch shown in FIG. 2, and FIG. 4 is another specific circuit diagram of the attenuation circuit shown in FIG. 3.
- 10...RF switch with attenuator, 11.
...Antenna input terminal, 12...TV output terminal, 13...Attenuation circuit, 14...
...Distribution circuit, 15...Selection circuit, 16...
...VTR terminal, 18...Modulation terminal,
19...Switch circuit.
Claims (1)
路と選択回路を配置し、アンテナ入力信号を前記分配回
路でエア放送用とＶＴＲ録画用の二方向に分配し、その
一方をアイソレート状態とカップリング状態を択一選択
する前記選択回路、他方をＶＴＲ用端子にそれぞれ結合
し、前記選択回路のカップリング状態の際に前記一方の
分配信号を、またアイソレート状態の際に変調用端子か
らの再生用変調信号をスイッチ回路を経てそれ°ぞれ前
記出力端子に結合するＲＦスイッチにおいて、前記アン
テナ入力信号の減衰度を可変自在にする減衰回路を、前
記入力端子と前記分配回路の間に介挿し、それぞれの前
記分配信号を所定レベルに維持させることを特徴とする
アッテネータ付ＲＦスイッチ。A distribution circuit and a selection circuit are arranged between the antenna input terminal and the TV output terminal, and the antenna input signal is distributed in two directions, one for air broadcasting and one for VTR recording, with the distribution circuit in an isolated state. and the selection circuit for selectively selecting a coupling state; In the RF switch that couples modulated signals for reproduction from the antenna to the output terminals through switch circuits, an attenuation circuit that can freely vary the degree of attenuation of the antenna input signal is provided between the input terminal and the distribution circuit. An RF switch with an attenuator, which is inserted into the attenuator to maintain each of the distribution signals at a predetermined level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6259483U JPS59166536U (en) | 1983-04-25 | 1983-04-25 | RF switch with attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6259483U JPS59166536U (en) | 1983-04-25 | 1983-04-25 | RF switch with attenuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59166536U true JPS59166536U (en) | 1984-11-08 |
Family
ID=30192785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6259483U Pending JPS59166536U (en) | 1983-04-25 | 1983-04-25 | RF switch with attenuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166536U (en) |
-
1983
- 1983-04-25 JP JP6259483U patent/JPS59166536U/en active Pending
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