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參數資料
| 型號： | LM3886 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | LM3886 Overture⑩ Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute |
| 中文描述： | LM3886序曲⑩音頻功率放大器系列高性能68瓦特音頻功率放大器瓦特/靜音 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 745K |
| 代理商： | LM3886 |
LM3886 Overture
Audio Power Amplifier Series
High-Performance 68W Audio Power Amplifier w/Mute
General Description
The LM3886 is a high-performance audio power amplifier
capable of delivering 68W of continuous average power to a
4
load and 38W into 8
with 0.1% (THD + N) from
20 Hz–20 kHz.
The performance of the LM3886, utilizing its Self Peak In-
stantaneous Temperature (Ke) (
SPiKe
) Protection Cir-
cuitry, puts it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe Oper-
ating Area (SOA).
SPiKe
Protection means that these parts
are completely safeguarded at the output against overvolt-
age, undervoltage, overloads, including shorts to the sup-
plies, thermal runaway, and instantaneous temperature
peaks.
The LM3886 maintains an excellent Signal-to-Noise Ratio of
greater than 92 dB with a typical low noise floor of 2.0 μV. It
exhibits extremely low (THD + N) values of 0.03% at the
rated output into the rated load over the audio spectrum, and
provides excellent linearity with an IMD (SMPTE) typical rat-
ing of 0.004%.
Features
n
68W cont. avg. output power into 4
at V
CC
=
±
28V
n
38W cont. avg. output power into 8
at V
CC
=
±
28V
n
50W cont. avg. output power into 8
at V
CC
=
±
35V
n
135W instantaneous peak output power capability
n
Signal-to-Noise Ratio
≥
92 dB
n
An input mute function
n
Output protection from a short to ground or to the
supplies via internal current limiting circuitry
n
Output over-voltage protection against transients from
inductive loads
n
Supply under-voltage protection, not allowing internal
biasing to occur when |V
| + |V
|
≤
12V, thus
eliminating turn-on and turn-off transients
n
11-lead TO-220 package
Applications
n
Component stereo
n
Compact stereo
n
Self-powered speakers
n
Surround-sound amplifiers
n
High-end stereo TVs
Typical Application
Overture
and
SPiKe
Protection are trademarks of National Semiconductor Corporation.
DS011833-1
*Optional components dependent upon specific design requirements. Refer to the External Components Description section for a component functional
FIGURE 1. Typical Audio Amplifier Application Circuit
May 1999
L
w
1999 National Semiconductor Corporation
DS011833
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM3886T | LM3886 Overture⑩ Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute |
| LM3886TF | LM3886 Overture⑩ Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute |
| LM4050AEM3 | Precision Micropower Shunt Voltage Reference |
| LM4050AEM3-10 | Precision Micropower Shunt Voltage Reference |
| LM4050AEM3-2.0 | Precision Micropower Shunt Voltage Reference |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM3886_03 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Overture TM Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute |
| LM3886T | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM3886T | 制造商:Texas Instruments 功能描述:IC AMP AUDIO + MUTE 68W |
| LM3886T/NOPB | 功能描述:音頻放大器 HIGH-PERF 68W AUDIO PWR AMP RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM3886T/NOPB | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC |
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