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LM4899

更新时间： 2024-01-24 20:36:12
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器功率放大器
页数 文件大小 规格书
16页 590K
描述
1 Watt Fully Differential Audio Power Amplifier With Shutdown Select and Fixed 6dB Gain

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中文翻译

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LM4899 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP, TSSOP10,.19,20Reach Compliance Code：compliant
风险等级：5.84商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：R-PDSO-G10JESD-609代码：e3
湿度敏感等级：1功能数量：1
端子数量：10最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP10,.19,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：3/5 V认证状态：Not Qualified
子类别：Audio/Video Amplifiers最大压摆率：10 mA
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL

LM4899 数据手册

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July 2003  
LM4899  
1 Watt Fully Differential Audio Power Amplifier With  
Shutdown Select and Fixed 6dB Gain  
General Description  
Key Specifications  
The LM4899 is a fully differential audio power amplifier  
primarily designed for demanding applications in mobile  
phones and other portable communication device applica-  
tions. It is capable of delivering 1 watt of continuous average  
power to an 8Ω load with less than 1% distortion (THD+N)  
from a 5VDC power supply.  
j
j
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Improved PSRR at 217Hz  
Power Output at 5.0V & 1% THD  
Power Output at 3.3V & 1% THD  
Shutdown Current  
83dB  
1.0W(typ.)  
400mW(typ.)  
0.1µA(typ.)  
Boomer audio power amplifiers were designed specifically to  
provide high quality output power with a minimal amount of  
external components. The LM4899 does not require output  
coupling capacitors or bootstrap capacitors, and therefore is  
ideally suited for mobile phone and other low voltage appli-  
cations where minimal power consumption is a primary re-  
quirement.  
Features  
n Fully differential amplification  
n Internal-gain-setting resistors  
n Available in space-saving packages micro SMD, MSOP  
and LLP  
n Ultra low current shutdown mode  
n Can drive capacitive loads up to 500pF  
n Improved pop & click circuitry which virtually eliminates  
noises during turn-on and turn-off transitions  
n 2.4 - 5.5V operation  
n No output coupling capacitors, snubber networks or  
bootstrap capacitors required  
n Shutdown high or low selectivity  
The LM4899 features a low-power consumption shutdown  
mode. To facilitate this, Shutdown may be enabled by either  
logic high or low depending on mode selection. Driving the  
shutdown mode pin either high or low enables the shutdown  
select pin to be driven in a likewise manner to enable Shut-  
down. Additionally, the LM4899 features an internal thermal  
shutdown protection mechanism.  
The LM4899 contains advanced pop & click circuitry which  
virtually eliminates noises which would otherwise occur dur-  
ing turn-on and turn-off transitions.  
Applications  
n Mobile phones  
The LM4899 has an internally fixed gain of 6dB.  
n PDAs  
n Portable electronic devices  
Connection Diagrams  
9 Bump micro SMD Package  
9 Bump micro SMD Marking  
200645C7  
X - Date Code  
T - Die Run Traceability  
G - Boomer Family  
C1 - LM4899ITL  
200645A0  
Top View  
Order Number LM4899ITL, LM4899ITLX  
See NS Package Number TLA09AAA  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2003 National Semiconductor Corporation  
DS200645  
www.national.com  
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与LM4899相关器件

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LM4899ITL NSC

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 		1 Watt Fully Differential Audio Power Amplifier With Shutdown Select and Fixed 6dB Gain
LM4899ITL/NOPB TI

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 		1W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9, MICRO SMD-9
LM4899ITLX NSC

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 		1 Watt Fully Differential Audio Power Amplifier With Shutdown Select and Fixed 6dB Gain
LM4899LD NSC

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 		1 Watt Fully Differential Audio Power Amplifier With Shutdown Select and Fixed 6dB Gain
LM4899LD TI

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 		1.4W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10
LM4899LDX TI

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 		IC,AUDIO AMPLIFIER,SINGLE,LLCC,10PIN,PLASTIC
LM4899LDX/NOPB TI

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 		IC,AUDIO AMPLIFIER,SINGLE,LLCC,10PIN,PLASTIC
LM4899MM NSC

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 		1 Watt Fully Differential Audio Power Amplifier With Shutdown Select and Fixed 6dB Gain
LM4899MM/NOPB TI

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 		1W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10
LM4899MMX/NOPB TI

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 		IC,AUDIO AMPLIFIER,SINGLE,TSSOP,10PIN,PLASTIC

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