- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385486 > LM4841 (National Semiconductor Corporation) Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive PDF資料下載
參數(shù)資料
| 型號： | LM4841 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| 中文描述： | 2W的立體聲放大器直流音量控制，瞬態(tài)自由輸出，無電容耳機驅(qū)動器 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大?。?/td> | 1138K |
| 代理商： | LM4841 |
當(dāng)前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
LM4841
Stereo 2W Amplifiers with DC Volume Control,
Transient Free Outputs, and Cap-less Headphone Drive
General Description
The LM4841 is a monolithic integrated circuit that provides
DC volume control and stereo bridged audio power amplifi-
ers capable of producing 2W into 4
(Note 1) or 2.2W into
3
(Note 2) with less than 1.0% THD.
The LM4841 uses advanced, latest generation circuitry to
eliminate all traces of clicks and pops when the supply
voltages is first applied. The amplifier has a headphone-
amplifier-select input pin that is used to switch the amplifiers
from bridge to single-ended mode for driving headphones. A
new circuit topology eliminates headphone output coupling
capacitors (patent pending).
Boomer
audio integrated circuits are designed specifically
to provide high quality audio while requiring a minimum
amount of external components. The LM4841 incorporates a
DC volume control, stereo bridged audio power amplifiers
and a selectable gain or bass boost, making it optimally
suited for multimedia monitors, portable radios, desktop, and
portable computer applications.
The LM4841 features an externally controlled, low-power
consumption shutdown mode (Shutdown Low), and both a
power amplifier and headphone mute for maximum system
flexibility and performance.
Note 1:
When properly mounted to the circuit board, LM4841MH and
LM4841LQ will deliver 2W into 4
. The LM4841MT will deliver 1.1W into 8
.
See the Application Information section for LM4841MH usage information.
Note 2:
An LM4841MH that has been properly mounted to the circuit board
and forced-air cooled will deliver 2.2W into 3
.
Key Specifications
n
P
O
at 1% THD+N
n
into 3
(MH and LQ)
n
into 4
( MH and LQ)
n
into 8
(MT, MH, and LQ)
n
Single-ended THD+N at 85mW into 32
n
Shutdown current
2.2W (typ)
2.0W (typ)
1.1W (typ)
1.0%(typ)
0.7μA (typ)
Features
n
Stereo headphone amplifier mode that eliminates the
Output Coupling Capacitors (patent pending)
n
Acoustically Enhanced DC Volume Control Taper
n
System Beep Detect
n
Stereo switchable bridged/single-ended power amplifiers
n
Selectable internal/external gain and bass boost
n
Advanced “click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
Applications
n
Portable and Desktop Computers
n
Multimedia Monitors
n
Portable Radios, PDAs, and Portable TVs
Connection Diagrams
TSSOP Package
20028002
Top View
Order Number LM4841MT or LM4841MH
See NS Package Number MTC28 for TSSOP and MXA28A for Exposed-DAP TSSOP
Boomer
is a registered trademark of National Semiconductor Corporation.
August 2002
L
H
2002 National Semiconductor Corporation
DS200280
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4841LQ | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| LM4841MH | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| LM4841MT | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| LM4842 | Stereo 2W Amplifiers with DC Volume Control Transient Free Outputs, and Cap-less Headphone Drive |
| LM4842LQ | Stereo 2W Amplifiers with DC Volume Control Transient Free Outputs, and Cap-less Headphone Drive |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM48410 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low EMI, Filterless, 2.3W Stereo Class D Audio Power Amplifier with National 3D Enhancement |
| LM48410SQ | 制造商:Texas Instruments 功能描述:Audio Amp Speaker 2-CH Stereo 2.3W Class-D 24-Pin LLP EP T/R 制造商:Texas Instruments 功能描述:AMP, POWER, CLASS D, 2.3W, LLP-24 |
| LM48410SQ/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM48410SQBD | 功能描述:音頻 IC 開發(fā)工具 LM48410 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)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 |
| LM48410SQE/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。