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LM4855ITLX/NOPB PDF预览

LM4855ITLX/NOPB

更新时间： 2024-02-14 20:14:24
品牌 Logo 应用领域
德州仪器 - TI 放大器商用集成电路
页数 文件大小 规格书
27页 2591K
描述
IC,AUDIO AMPLIFIER,DUAL,BGA,18PIN,PLASTIC

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LM4855ITLX/NOPB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：FBGA, BGA18,4X5,20/17Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.47商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：R-PBGA-B18JESD-609代码：e1
湿度敏感等级：1功能数量：2
端子数量：18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：FBGA封装等效代码：BGA18,4X5,20/17
封装形状：RECTANGULAR封装形式：GRID ARRAY, FINE PITCH
峰值回流温度（摄氏度）：260电源：3/5 V
认证状态：Not Qualified子类别：Audio/Video Amplifiers
最大压摆率：12 mA表面贴装：YES
温度等级：INDUSTRIAL端子面层：Tin/Silver/Copper (Sn/Ag/Cu)
端子形式：BALL端子节距：0.43 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

LM4855ITLX/NOPB 数据手册

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LM4855  
www.ti.com  
SNAS164C –JUNE 2002–REVISED MAY 2013  
LM4855  
Integrated Audio Amplifier System  
Check for Samples: LM4855  
1
FEATURES  
DESCRIPTION  
The LM4855 is an audio power amplifier system  
capable of delivering 1.1W (typ) of continuous  
average power into a mono 8Ω bridged-tied load  
(BTL) with 1% THD+N and 115mW (typ) per channel  
of continuous average power into stereo 32Ω BTL  
loads with 0.5% THD+N, using a 5V power supply.  
2
•
1.1W (Typ) Output Power with 8Ω Mono BTL  
Load  
•
•
115mW (Typ) Output Power with Stereo 32Ω  
BTL Loads  
SPI Programmable 32 Step Digital Volume  
Control  
The LM4855 features a 32 step digital volume control  
and eight distinct output modes. The digital volume  
control and output modes are programmed through a  
three-wire SPI serial control interface, that allows  
flexibility in routing and mixing audio channels.  
•
•
•
•
•
Eight Distinct Output Modes  
DSBGA and WQFN Surface Mount Packaging  
"Click and Pop" Suppression Circuitry  
Thermal Shutdown Protection  
The LM4855 is designed for cellular phone, PDA, and  
other portable handheld applications. It delivers high  
quality output power from a surface-mount package  
and requires only six external components.  
Low Shutdown Current (0.1uA, Typ)  
KEY SPECIFICATIONS  
•
•
THD+N at 1kHz, 1.1W into 8Ω BTL: 1.0% (Typ)  
The industry leading DSBGA package only utilizes  
2mm x 2.3mm of PCB space, making the LM4855 the  
most space efficient audio sub system available  
today.  
THD+N at 1kHz, 115mW into 32Ω BTL: 0.5%  
(Typ)  
•
Single Supply Operation: 2.6 to 5.0V  
APPLICATIONS  
•
•
Moblie Phones  
PDAs  
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.  
2
All trademarks are the property of their respective owners.  
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 © 2002–2013, Texas Instruments Incorporated  
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