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参数资料
| 型号： | LM4864MDC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.55 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC13 |
| 封装： | DIE |
| 文件页数： | 1/18页 |
| 文件大小： | 589K |
| 代理商： | LM4864MDC |
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
September 2004
LM4864
725mW
Audio
Power
Amplifier
with
Shutdown
Mode
2004 National Semiconductor Corporation
DS012607
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LM4864MWC | 0.55 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC13 |
| LM4864N/NOPB | 0.675 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| LM4864LD/NOPB | 0.725 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| LM4865IBP/NOPB | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA8 |
| LM4865IBPX/NOPB | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4864MM | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4864MM/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4864MMX | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4864MMX/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4864MX | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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