JPS61202919U - - Google Patents
Info
- Publication number
- JPS61202919U JPS61202919U JP8779485U JP8779485U JPS61202919U JP S61202919 U JPS61202919 U JP S61202919U JP 8779485 U JP8779485 U JP 8779485U JP 8779485 U JP8779485 U JP 8779485U JP S61202919 U JPS61202919 U JP S61202919U
- Authority
- JP
- Japan
- Prior art keywords
- gain control
- control currents
- currents
- circuit
- sum
- 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
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図はレベル調整器を示すブロツク図、第３図はそ
の可変定電流源を示す回路図である。
１，２……相互コンダクタンス増幅器、３……
可変定電流源、４……ＩＣＮＴ１＋ＩＣＮＴ２の
設定回路、５……ＩＣＮＴ１／ＩＣＮＴ２の設定
回路。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a block diagram showing the level adjuster, and FIG. 3 is a circuit diagram showing its variable constant current source. 1, 2...transconductance amplifier, 3...
Variable constant current source, 4... ICNT 1 + ICNT 2 setting circuit, 5... ICNT 1 /ICNT 2 setting circuit.
Claims (1)
とを夫々独立に設定可能な可変電流源と、上記利
得制御電流に対応した利得を有する２つの相互コ
ンダクタンス増幅器とから成り、上記可変定電流
源における利得制御電流の和を設定する回路と、
該電流の比を設定する回路とを上記電流源の電源
と接地間に直列に接続配置したことを特徴とする
レベル調整器。 It consists of a variable current source that supplies two gain control currents and can independently set the sum and ratio of the currents, and two transconductance amplifiers that have gains corresponding to the gain control currents, and a circuit for setting the sum of gain control currents in the current sources;
A level adjuster characterized in that a circuit for setting the current ratio is connected in series between the power source of the current source and ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8779485U JPH0535610Y2 (en) | 1985-06-10 | 1985-06-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8779485U JPH0535610Y2 (en) | 1985-06-10 | 1985-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61202919U true JPS61202919U (en) | 1986-12-20 |
| JPH0535610Y2 JPH0535610Y2 (en) | 1993-09-09 |
Family
ID=30640339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8779485U Expired - Lifetime JPH0535610Y2 (en) | 1985-06-10 | 1985-06-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0535610Y2 (en) |
-
1985
- 1985-06-10 JP JP8779485U patent/JPH0535610Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0535610Y2 (en) | 1993-09-09 |