JPS62202604U - - Google Patents
Info
- Publication number
- JPS62202604U JPS62202604U JP8987286U JP8987286U JPS62202604U JP S62202604 U JPS62202604 U JP S62202604U JP 8987286 U JP8987286 U JP 8987286U JP 8987286 U JP8987286 U JP 8987286U JP S62202604 U JPS62202604 U JP S62202604U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- electronic switch
- equalizer
- terminal
- ground point
- 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
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Description
第１図は本考案に係るステレオ再生イコライザ
用集積回路の一実施例を示すブロツク図であり、
第２図、第３図、第４図および第５図は上記実施
例における電子スイツチ回路の具体的な構成例を
それぞれ示す各回路図である。第６図はステレオ
再生イコライザ用集積回路の従来例を示すブロツ
ク図である。
１０……ステレオ再生イコライザ用集積回路、
１１Ａ，１１Ｂ……ステレオ増幅器、１２……電
子スイツチ回路、１３……リフアレンス回路、２
１Ａ，２１Ｂ……ステレオ再生ヘツド、２２Ａ，
２２Ｂ……ステレオイコライザ回路、２３……外
部制御スイツチ。
FIG. 1 is a block diagram showing an embodiment of an integrated circuit for a stereo reproduction equalizer according to the present invention.
FIGS. 2, 3, 4, and 5 are circuit diagrams showing specific examples of the configuration of the electronic switch circuit in the above embodiment. FIG. 6 is a block diagram showing a conventional example of an integrated circuit for a stereo reproduction equalizer. 10...Stereo playback equalizer integrated circuit,
11A, 11B...Stereo amplifier, 12...Electronic switch circuit, 13...Reference circuit, 2
1A, 21B...Stereo playback head, 22A,
22B... Stereo equalizer circuit, 23... External control switch.
Claims (1)
を内蔵して集積回路化したステレオ再生イコライ
ザ用集積回路において、 集積回路内の仮想接地点に内部接続された固定
端と上記仮想接地点から切り離された固定端とに
切り換え接続される可動端を有する電子スイツチ
回路と、 上記仮想接地点を外部接続する第１の端子と、 上記電子スイツチ回路の制御入力端および上記
可動端を外部接続する第２および第３の端子とを
設け、 上記第１の端子と第２および第３の端子間にス
テレオイコライザ回路を接続するとともに、上記
第１の端子と第２の端子間に上記電子スイツチ回
路の動作制御用の外部制御スイツチを接続して、
該外部制御スイツチの操作により上記イコライザ
特性を切り換えるようにしたことを特徴とするス
テレオ再生イコライザ用集積回路。[Scope of Claim for Utility Model Registration] In an integrated circuit for a stereo reproduction equalizer that is integrated with a built-in electronic switch circuit for switching equalizer characteristics, a fixed end internally connected to a virtual ground point in the integrated circuit and the virtual ground point an electronic switch circuit having a movable end that is switched and connected to a fixed end separated from the electronic switch circuit; a first terminal that externally connects the virtual ground point; and a control input end of the electronic switch circuit and the movable end that are externally connected. a stereo equalizer circuit is provided between the first terminal and the second and third terminals, and the electronic switch is connected between the first terminal and the second terminal. Connect an external control switch to control the operation of the circuit.
An integrated circuit for a stereo reproduction equalizer, characterized in that the equalizer characteristics are switched by operating the external control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8987286U JPH0743764Y2 (en) | 1986-06-12 | 1986-06-12 | Integrated circuit for stereo playback equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8987286U JPH0743764Y2 (en) | 1986-06-12 | 1986-06-12 | Integrated circuit for stereo playback equalizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62202604U true JPS62202604U (en) | 1987-12-24 |
| JPH0743764Y2 JPH0743764Y2 (en) | 1995-10-09 |
Family
ID=30949247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8987286U Expired - Lifetime JPH0743764Y2 (en) | 1986-06-12 | 1986-06-12 | Integrated circuit for stereo playback equalizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0743764Y2 (en) |
-
1986
- 1986-06-12 JP JP8987286U patent/JPH0743764Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0743764Y2 (en) | 1995-10-09 |
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