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參數(shù)資料
| 型號： | LM389 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | LM389 Low Voltage Audio Power Amplifier with NPN Transistor Array |
| 中文描述： | LM389低電壓音頻功率放大器NPN晶體管陣列 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 194K |
| 代理商： | LM389 |
TL/H/7847
L
December 1994
LM389 Low Voltage Audio Power Amplifier
with NPN Transistor Array
General Description
The LM389 is an array of three NPN transistors on the same
substrate with an audio power amplifier similar to the
LM386.
The amplifier inputs are ground referenced while the output
is automatically biased to one half the supply voltage. The
gain is internally set at 20 to minimize external parts, but the
addition of an external resistor and capacitor between pins
4 and 12 will increase the gain to any value up to 200.
The three transistors have high gain and excellent matching
characteristics. They are well suited to a wide variety of ap-
plications in DC through VHF systems.
Features
Amplifier
Y
Battery operation
Y
Minimum external parts
Y
Wide supply voltage range
Y
Low quiescent current drain
Y
Voltage gains from 20 to 200
Y
Ground referenced input
Y
Self-centering output quiescent voltage
Y
Low distortion
Transistors
Y
Operation from 1
m
A to 25 mA
Y
Frequency range from DC to 100 MHz
Y
Excellent matching
Applications
Y
AM-FM radios
Y
Portable tape recorders
Y
Intercoms
Y
Toys and games
Y
Walkie-talkies
Y
Portable phonographs
Y
Power converters
Equivalent Schematic and Connection Diagrams
TL/H/7847–1
Dual-In-Line Package
TL/H/7847–2
Order Number LM389N
See NS Package Number N18A
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM389N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM389 Low Voltage Audio Power Amplifier with NPN Transistor Array |
| LM389N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Audio Amplifier |
| LM38W | 制造商:BEAVERSWOOD 功能描述:MARKER MAG WHITE 30X80MM PK100 |
| LM390 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM390 1W Battery Operated Audio Power Amplifier |
| LM3900 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:QUAD SINGLE SUPPLY OPERATIONAL AMPLIFIERS |
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