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参数资料
| 型号： | LM4914MH/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.085 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封装： | TSSOP-10 |
| 文件页数： | 1/16页 |
| 文件大小： | 767K |
| 代理商： | LM4914MH/NOPB |
LM4914
1W Monaural, 85mW Stereo Headphone Audio Amplifier
General Description
The unity-gain stable LM4914 is both a mono differential
output (for bridge-tied loads, or BTL) audio power amplifier
and a single-ended (SE) stereo headphone amplifier. Oper-
ating on a single 5V supply, the mono BTL mode delivers 1W
into an 8
load. In SE stereo mode, the amplifier delivers
85mW to 32
loads. The LM4914 features circuitry that
suppresses output transients ("clicks and pops").
The LM4914 is designed for notebook and other handheld
portable applications. It delivers high quality output power
from a surface-mount package and requires few external
components. The LM4914 is pin and functionally compatible
with the TPA0253.
Other features include an active-low micro-power shutdown
mode and thermal shutdown protection.
The LM4914 is available in a space efficient 10-lead
exposed-DAP TSSOP package.
Key Specifications
j BTL output power (RL =8
)
V
DD = at 3.0V, THD = 0.1%
V
DD = at 5.0V, THD = 0.1%
330mW (typ)
1W (typ)
j SE output power (RL =32
)
V
DD = at 3.0V, THD = 0.1%
V
DD = at 5.0V, THD = 0.1%
30mW (typ)
85mW (typ)
j Micro-power shutdown supply current
0.03A (typ)
j PSRR (f = 1kHz)
V
DD = at 3.0V, BTL Mode
V
DD = at 5.0V, BTL Mode
52dB (typ)
Features
n
Advanced "click and pop" suppression circuitry
n
Stereo headphone amplifier mode
n
Low current micro-power shutdown mode
n
Thermal shutdown protection circuitry
n
2.5V to 5.5V operation
n
Unity-gain stable
n
Gain set with external resistors
n
Space-saving exposed-DAP TSSOP package
Applications
n
PDAs
n
Cellular phones
n
Handheld portable electronic devices
Connection Diagram
200634A0
Top View
Order Number LM4914MH
See NS package Number MXF10A
Boomer is a registered trademark of National Semiconductor Corporation.
July 2006
LM4914
1W
Monaural,
85mW
Stereo
Headphone
Audio
Amplifier
2006 National Semiconductor Corporation
DS200634
www.national.com
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| LM4918LQ/NOPB | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC32 |
| LM4919MM/NOPB | 0.014 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| LM4921ITLX/NOPB | SPECIALTY CONSUMER CIRCUIT, PBGA20 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4915 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Pseudo-Differential Mono Headphone Amplifier with Fixed 6dB Gain |
| LM49150 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers |
| LM49150TL | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers |
| LM49150TL/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 |
| LM49150TLEVAL | 功能描述:音频 IC 开发工具 LM49150TL EVAL BOARD RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
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