JPS62100716U - - Google Patents
Info
- Publication number
- JPS62100716U JPS62100716U JP11050586U JP11050586U JPS62100716U JP S62100716 U JPS62100716 U JP S62100716U JP 11050586 U JP11050586 U JP 11050586U JP 11050586 U JP11050586 U JP 11050586U JP S62100716 U JPS62100716 U JP S62100716U
- Authority
- JP
- Japan
- Prior art keywords
- common substrate
- switching element
- capacitors
- selectively changing
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 claims 4
- 239000000758 substrate Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Description
第１図は開閉制御容量使用の従来のフイルタを
示す回路図、第２図は第１図のフイルタの周波数
特性曲線図、第３図は本考案実施例を示す回路図
、第４図は第３図中の開閉素子の具体的構成例を
示す図である。
ＳＩ…信号入力端子、ＳＯ…信号出力端子、Ｃ
Ａ１〜ＣＡ８，ＣＢ，ＣＦ１〜ＣＦ２…容量、Ｍ
Ｓ１〜ＭＳ８…開閉器、Ｓ１〜Ｓ８〜開閉素子、
ＯＰ１〜ＯＰ６…演算増幅回路。
Fig. 1 is a circuit diagram showing a conventional filter using switching control capacitance, Fig. 2 is a frequency characteristic curve diagram of the filter shown in Fig. 1, Fig. 3 is a circuit diagram showing an embodiment of the present invention, and Fig. 4 is a circuit diagram showing a conventional filter using switching control capacity. 3 is a diagram showing a specific configuration example of the switching element in FIG. 3. FIG. SI...Signal input terminal, SO...Signal output terminal, C
A1 to CA8 , CB, CF1 to CF2 ...capacity, M
S1-MS8...switch, S1-S8-switching element,
OP1 to OP6... operational amplifier circuits.
補正 昭６２．１．２４
考案の名称を次のように補正する。
考案の名称 周波数特性を選択的に変更でき
るフイルタAmendment January 24, 1982 The name of the invention is amended as follows. Name of invention: Filter that can selectively change frequency characteristics
Claims (1)
入力端子と接地端子間に切換接続される容量を増
幅器を介して複数個接続し、所定クロツク周波数
により前記容量を切換接続して得られるフイルタ
において、 前記容量に更に選択的に接続可能な補助容量と
、選択接続用開閉素子とを前記共通基板上に設け
、該開閉素子を共通基板の外部から制御すること
により前記容量の値を選択的に変更することを特
徴とする周波数特性を選択的に変更できるフイル
タ。[Claims for Utility Model Registration] A plurality of capacitors formed on a common substrate using semiconductor manufacturing technology and switchably connected between a signal input terminal and a ground terminal are connected via an amplifier, and the capacitors are switched at a predetermined clock frequency. In the filter obtained by connecting, an auxiliary capacitor that can be further selectively connected to the capacitor and a selective connection switching element are provided on the common substrate, and the switching element is controlled from outside of the common substrate. A filter capable of selectively changing frequency characteristics, characterized by selectively changing a capacitance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11050586U JPS6314495Y2 (en) | 1986-07-18 | 1986-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11050586U JPS6314495Y2 (en) | 1986-07-18 | 1986-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62100716U true JPS62100716U (en) | 1987-06-26 |
| JPS6314495Y2 JPS6314495Y2 (en) | 1988-04-22 |
Family
ID=30989568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11050586U Expired JPS6314495Y2 (en) | 1986-07-18 | 1986-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314495Y2 (en) |
-
1986
- 1986-07-18 JP JP11050586U patent/JPS6314495Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6314495Y2 (en) | 1988-04-22 |
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