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LM4855ITL/NOPB PDF预览

LM4855ITL/NOPB

更新时间: 2024-01-27 17:39:48
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器商用集成电路
页数 文件大小 规格书
24页 1105K
描述
IC 1.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PBGA18, MICRO SMD-18, Audio/Video Amplifier

LM4855ITL/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:BGA
包装说明:IBGA, BGA18,4X5,20/17针数:18
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.18
标称带宽:20 kHz商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:R-PBGA-B18JESD-609代码:e1
长度:2.225 mm湿度敏感等级:1
信道数量:3功能数量:1
端子数量:18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:IBGA
封装等效代码:BGA18,4X5,20/17封装形状:RECTANGULAR
封装形式:GRID ARRAY, INTERSTITIAL 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
最大供电电压 (Vsup):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:Tin/Silver/Copper (Sn/Ag/Cu)端子形式:BALL
端子节距:0.866 mm端子位置:BOTTOM
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:1.996 mm
Base Number Matches:1

LM4855ITL/NOPB 数据手册

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November 2002  
LM4855  
Integrated Audio Amplifier System  
General Description  
Key Specifications  
n THD+N at 1kHz, 1.1W into 8BTL  
n THD+N at 1kHz, 115mW into 32BTL  
n Single Supply Operation  
1.0% (typ)  
0.5% (typ)  
2.6 to 5.0V  
The LM4855 is an audio power amplifier system capable of  
delivering 1.1W (typ) of continuous average power into a  
mono 8bridged-tied load (BTL) with 1% THD+N and  
115mW (typ) per channel of continuous average power into  
stereo 32BTL loads with 0.5% THD+N, using a 5V power  
supply.  
Features  
n 1.1W (typ) output power with 8mono BTL load  
n 115mW (typ) output power with stereo 32BTL loads  
n SPI programmable 32 step digital volume control  
n Eight distinct output modes  
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.  
n micro-SMD and LLP surface mount packaging  
n "Click and Pop" suppression circuitry  
n 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.  
n Low shutdown current (0.1uA, typ)  
The industry leading micro SMD package only utilizes 2mm  
x 2.3mm of PCB space, making the LM4855 the most space  
efficient audio sub system available today.  
Applications  
n Moblie Phones  
n PDAs  
Typical Application  
200395D1  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2002 National Semiconductor Corporation  
DS200395  
www.national.com  

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