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LM4897MM/NOPB PDF预览

LM4897MM/NOPB

更新时间： 2024-09-26 21:09:03
品牌 Logo 应用领域
德州仪器 - TI 放大器光电二极管商用集成电路
页数 文件大小 规格书
17页 635K
描述
1.1W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10

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中文翻译

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LM4897MM/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：MSOP
包装说明：TSSOP, TSSOP10,.19,20针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.81
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：S-PDSO-G10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
信道数量：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标称输出功率：1.1 W
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：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：2.6/5 V认证状态：Not Qualified
座面最大高度：1.09 mm子类别：Audio/Video Amplifiers
最大压摆率：9 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.6 V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处于峰值回流温度下的最长时间：40
宽度：3 mmBase Number Matches：1

LM4897MM/NOPB 数据手册

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OBSOLETE  
LM4897  
www.ti.com  
SNAS183E –APRIL 2003–REVISED APRIL 2013  
LM4897  
1.1 Watt Audio Power Amplifier with Fade-In and  
Fade-Out  
Check for Samples: LM4897  
1
FEATURES  
DESCRIPTION  
The LM4897 is an audio power amplifier primarily  
designed for demanding applications in mobile  
phones and other portable communication device  
applications. It is capable of delivering 1.1W of  
continuous average power to an 8Ω BTL load with  
less than 1% distortion (THD+N) from a +5VDC power  
supply.  
2
•
No Output Coupling Capacitors, Snubber  
Networks or Bootstrap Capacitors Required  
•
•
•
•
Unity Gain Stable  
Ultra Low Current Shutdown Mode  
Fade-In/Fade-Out  
BTL Output Can Drive Capacitive Loads up to  
100pF  
The LM4897 contains advanced pop and click  
circuitry that eliminate noises which would otherwise  
occur during turn-on and turn-off transitions. It also  
contains a fade-in/fade-out feature that eliminates  
unnatural sound generated by asserting/de-asserting  
the SHUTDOWN pin. The LM4897 is unity-gain  
stable and can be configured by external gain-setting  
resistors.  
•
Advanced Pop and Click Circuitry Eliminates  
Noises During Turn-On and Turn-Off  
Transitions  
•
•
2.6V - 5.5V Operation  
Available in a Space-Saving SOIC Package  
KEY SPECIFICATIONS  
The LM4897 features a low-power consumption  
global shutdown mode, which is achieved by driving  
the shutdown pin with logic low. Additionally, the  
LM4897 features an internal thermal shutdown  
protection mechanism.  
•
•
•
•
Improved PSRR at 5V, 3V, & 217Hz: 62dB (typ)  
Higher PO at 5V, THD+N = 1%: 1.1W (typ)  
Higher PO at 3V, THD+N = 1%: 350mW (typ)  
Shutdown Current: 0.1μA (typ)  
Boomer audio power amplifiers were designed  
specifically to provide high quality output power with a  
minimal amount of external components. The  
LM4897 does not require output coupling capacitors  
or bootstrap capacitors, and therefore is ideally suited  
for lower-power portable applications where minimal  
space and power consumption are primary  
requirements.  
APPLICATIONS  
•
•
•
Mobile Phones  
PDAs  
Portable Electronic Devices  
Connection Diagrams  
Mini Small Outline (VSSOP) Package  
Figure 1. Top View  
See package Number DGS0010A  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2003–2013, Texas Instruments Incorporated  
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