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參數資料
| 型號： | LM4864LDX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.725 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| 封裝： | LLP-10 |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 589K |
| 代理商： | LM4864LDX/NOPB |
LM4864
725mW Audio Power Amplifier with Shutdown Mode
General Description
The LM4864 is a bridged audio power amplifier capable of
delivering 725mW of continuous average power into an 8
load with 1% THD+N from a 5V power supply.
Boomer audio power amplifiers were designed specifically
to provide high quality output power from a low supply volt-
age while requiring a minimal amount of external compo-
nents. Since the LM4864 does not require output coupling
capacitors, bootstrap capacitors or snubber networks, it is
optimally suited for low-power portable applications.
The LM4864 features an externally controlled, low power
consumption shutdown mode, and thermal shutdown protec-
tion.
The closed loop response of the unity-gain stable LM4864
can be configured by external gain-setting resistors. The
device is available in multiple package types to suit various
applications.
Key Specifications
j PO at 1% THD+N with VDD = 5V, 1kHz
LM4864LD, 4
load
625mW (typ)
LM4864LD, 8
load
725mW (typ)
LM4864M & LM4864N
*,8
load
675mW (typ)
LM4864MM, 8
load (Note 10)
300mW (typ)
LM4864, 16
load
550mW (typ)
j Shutdown current
0.7A (typ)
* Not recommended for new designs. Contact NSC Audio
Marketing.
Features
n
MSOP, SOP, DIP
*, and LD packaging
n
No output coupling capacitors, bootstrap capacitors, or
snubber circuits are necessary
n
Thermal shutdown protection circuitry
n
Unity-gain stable
n
External gain configuration capability
* Not recommended for new designs. Contact NSC Audio
Marketing.
Applications
n
Cellular phones
n
Personal computers
n
General purpose audio
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
01260701
FIGURE 1. Typical Audio Amplifier Application Circuit
January 2004
LM4864
725mW
Audio
Power
Amplifier
with
Shutdown
Mode
2004 National Semiconductor Corporation
DS012607
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4864M | 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 |
| LM4864M | 制造商:Texas Instruments 功能描述:AMP, AUDIO, BOOMER 0.3W, SMD, SOIC8 制造商:Texas Instruments 功能描述:AMP, AUDIO, BOOMER 0.3W, SMD, SOIC8; Amplifier Class:AB; No. of Channels:1; Output Power:725mW; Supply Voltage Range:2.7V to 5.5V; Amplifier Case Style:MSOP; No. of Pins:8; Load Impedance:8ohm; Operating Temperature Min:-40C; ;RoHS Compliant: Yes |
| LM4864M/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 |
| LM4864MM | 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 |
| LM4864MM/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 |
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