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參數(shù)資料
| 型號： | LM4780TA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Audio Power Amplifier Series Stereo 60W, Mono 120W Audio Power Amplifier with Mute |
| 中文描述： | 60 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM27 |
| 封裝： | PLASTIC, TO-220, 27 PIN |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 1030K |
| 代理商： | LM4780TA |
LM4780
Overture
Audio Power Amplifier Series
Stereo 60W, Mono 120W Audio Power Amplifier with
Mute
General Description
The LM4780 is a stereo audio amplifier capable of typically
delivering 60W per channel of continuous average output
power into an 8
load with less than 0.5% THD+N from
20Hz - 20kHz.
The LM4780 is fully protected utilizing National’s Self Peak
Instantaneous Temperature (Ke) (SPiKe
TM
) protection cir-
cuitry. SPiKe provides a dynamically optimized Safe Operat-
ing Area (SOA). SPiKe protection completely safeguards the
LM4780’s outputs against over-voltage, under-voltage, over-
loads, shorts to the supplies or GND, thermal runaway and
instantaneous temperature peaks. The advanced protection
features of the LM4780 places it in a class above discrete
and hybrid amplifiers.
Each amplifier of the LM4780 has an independent smooth
transition fade-in/out mute.
The LM4780 can easily be configured for bridge or parallel
operation for 120W mono solutions.
Key Specifications
n
Output Power/Channel with 0.5% THD+N, 1kHz into
8
n
THD+N at 2 x 30W into 8
(20Hz - 20kHz)
n
THD+N at 2 x 30W into 6
(20Hz - 20kHz)
n
THD+N at 2 x 30W into 4
(20Hz - 20kHz)
n
Mute Attenuation
n
PSRR
n
Slew Rate
60W (typ)
0.03% (typ)
0.05% (typ)
0.07% (typ)
110dB (typ)
85dB (min)
19V/μs (typ)
Features
n
SPiKe Protection
n
Low external component count
n
Quiet fade-in/out mute mode
n
Wide supply range: 20V - 84V
n
Signal-to-Noise Ratio
≥
97dB (ref. to P
O
= 1W)
Applications
n
Audio amplifier for component stereo
n
Audio amplifier for compact stereo
n
Audio amplifier for self-powered speakers
n
Audio amplifier for high-end and HD TVs
Typical Application
SPiKe
Protection and
Overture
are trademarks of National Semiconductor Corporation.
20058622
FIGURE 1. Typical Audio Amplifier Application Circuit
July 2003
L
S
2003 National Semiconductor Corporation
DS200586
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4780TA | 制造商:Texas Instruments 功能描述:IC AMP 120W MONO/60W STEREO 4780 |
| LM4780TA/NOPB | 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 |
| LM4780TABD | 功能描述:音頻 IC 開發(fā)工具 LM4780 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4780TABD/NOPB | 功能描述:BOARD EVAL FOR LM4780A RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 音頻放大器 系列:Overture™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| LM4781 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Overture⑩ Audio Power Amplifier Series 3 Channel 35W Audio Power Amplifier with Mute |
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