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參數(shù)資料
| 型號(hào)： | LM4880 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dual 250 mW Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 雙250毫瓦音頻功率放大器關(guān)斷模式 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 375K |
| 代理商： | LM4880 |
LM4880
Dual 250 mW Audio Power Amplifier with Shutdown
Mode
General Description
The LM4880 is a dual audio power amplifier capable of deliv-
ering typically 250 mW per channel of continuous average
power to an 8
load with 0.1% (THD) using a 5V power sup-
ply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components using surface mount packaging.
Since the LM4880 does not require bootstrap capacitors or
snubber networks, it is optimally suited for low-power por-
table systems.
The LM4880 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4880 can be configured by external
gain-setting resistors.
Key Specifications
n
THD at 1 kHz at 200 mW continuous average output
power into 8
:
0.1% (max)
n
THD at 1 kHz at 85 mW continuous average output
power into 32
:
0.1% (typ)
n
Output power at 10% THD + N at 1 kHz into 8
:
325 mW (typ)
n
Shutdown Current:
0.7 μA (typ)
Features
n
No bootstrap capacitors or snubber circuits are
necessary
n
Small Outline (SO) and DIP packaging
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Headphone Amplifier
n
Personal Computers
n
CD-ROM Players
Typical Application
Boomer
is a registered trademark of National Semiconductor Corporation.
DS012343-1
*
Refer to the
Application Information
section for information concerning proper selection of the input and output coupling capacitors.
FIGURE 1. Typical Audio Amplifier Application Circuit
November 1995
L
S
1999 National Semiconductor Corporation
DS012343
www.national.com
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| LM4880N | Dual 250 mW Audio Power Amplifier with Shutdown Mode |
| LM4880M | Dual 250 mW Audio Power Amplifier with Shutdown Mode |
| LM4883 | Dual 2.1W Audio Amplifier Plus Stereo Headphone |
| LM4883SQ | Dual 2.1W Audio Amplifier Plus Stereo Headphone |
| LM4889 | 1 Watt Audio Power Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4880_07 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4880_12 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4880-D08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4880G-D08-T | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
| LM4880G-SH2-R | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE |
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