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參數(shù)資料
| 型號(hào)： | LM4881MDA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 473K |
| 代理商： | LM4881MDA |
LM4881
Dual 200 mW Headphone Amplifier with Shutdown Mode
General Description
The LM4881 is a dual audio power amplifier capable of
delivering 200mW of continuous average power into an 8
load with 0.1% THD+N from a 5V power supply.
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 LM4881 does not require bootstrap capacitors or snub-
ber networks, it is optimally suited for low-power portable
systems.
The LM4881 features an externally controlled, low power
consumption shutdown mode which is virtually clickless and
popless, as well as an internal thermal shutdown protection
mechanism.
The unity-gain stable LM4881 can be configured by external
gain-setting resistors.
Key Specifications
j THD+N at 1kHz at 125mW
continuous average output
power into 8
0.1% (max)
j THD+N at 1kHz at 75mW
continuous
average output power into 32
0.02% (typ)
j Output power at 10% THD+N
at 1kHz into 8
300mW (typ)
j Shutdown Current
0.7A (typ)
j Supply voltage range
2.7V to 5.5V
Features
n
MSOP surface mount packaging
n
Unity-gain stable
n
External gain configuration capability
n
Thermal shutdown protection circuitry
n
No bootstrap capacitors, or snubber circuits are
necessary
Applications
n
Headphone Amplifier
n
Personal Computers
n
Microphone Preamplifier
Typical Application
Connection Diagrams
Boomer is a registered trademark of National Semiconductor Corporation.
DS100005-1
*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
MSOP Package
DS100005-2
SOP and DIP Package
DS100005-38
Top View
Order Number LM4881MM, LM4881M, or LM4881N
See NS Package Number MUA08A, M08A, or N08E
August 2000
LM4881
Dual
200
mW
Headphone
Amplifier
with
Shutdown
Mode
2001 National Semiconductor Corporation
DS100005
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4881N/NOPB | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| LM4882MMX/NOPB | 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4882MX/NOPB | 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4883SQ/NOPB | 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| LM4884MH/NOPB | 2.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4881MM | 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 |
| LM4881MM/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 |
| LM4881MM/SL110729 | 制造商:Texas Instruments 功能描述: |
| LM4881MMX | 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 |
| LM4881MMX/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 |
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