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LM48821TL PDF预览

LM48821TL

更新时间: 2024-09-30 20:59:55
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
22页 545K
描述
IC 0.053 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA16, BGA-16, Audio/Video Amplifier

LM48821TL 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA16,4X4,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.45标称带宽:22 kHz
商用集成电路类型:VOLUME CONTROL CIRCUITJESD-30 代码:S-XBGA-B16
JESD-609代码:e1长度:1.97 mm
湿度敏感等级:1信道数量:2
功能数量:1端子数量:16
最高工作温度:85 °C最低工作温度:-40 °C
标称输出功率:0.053 W封装主体材料:UNSPECIFIED
封装代码:VFBGA封装等效代码:BGA16,4X4,20
封装形状:SQUARE封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260电源:3 V
认证状态:Not Qualified座面最大高度:0.675 mm
子类别:Audio/Video Amplifiers最大压摆率:4.5 mA
最大供电电压 (Vsup):4 V最小供电电压 (Vsup):2 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:0.5 mm端子位置:BOTTOM
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:1.97 mm
Base Number Matches:1

LM48821TL 数据手册

 浏览型号LM48821TL的Datasheet PDF文件第2页浏览型号LM48821TL的Datasheet PDF文件第3页浏览型号LM48821TL的Datasheet PDF文件第4页浏览型号LM48821TL的Datasheet PDF文件第5页浏览型号LM48821TL的Datasheet PDF文件第6页浏览型号LM48821TL的Datasheet PDF文件第7页 
June 2007  
LM48821  
Direct Coupled, Ultra Low Noise, 52mW Differential Input  
Stereo Headphone Amplifier with I2C Volume Control  
General Description  
Key Specifications  
With its directly-coupled output technology, the LM48821 is a  
variable gain audio power amplifier capable of delivering  
52mWRMS per channel into a 16single-ended load with less  
than 1% THD+N from a 3V power supply. The I2C volume  
control has a range of –76dB to 18dB.  
■ꢀImproved PSRR at 217Hz  
■ꢀStereo Output Power at VDD = 3V,  
RL = 16Ω, THD+N = 1%  
82dB (typ)  
52mW (typ)  
■ꢀMono Output Power at VDD = 3V,  
RL = 16Ω, THD+N = 1%  
The LM48821's Tru-GND technology utilizes advanced  
charge pump technology to generate the LM48821’s negative  
supply voltage. This eliminates the need for output-coupling  
capacitors typically used with single-ended loads.  
93mW (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 LM48821 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  
Ground referenced outputs  
Differential Inputs  
I2C Volume and mode controls  
Available in space-saving micro SMD package  
Ultra low current shutdown mode  
The LM48821 incorporates selectable low-power consump-  
tion shutdown and channel select modes.  
Advanced output transient suppression circuitry  
eliminates noises during turn-on and turn-off transitions  
The LM48821 contains advanced output transient suppres-  
sion circuitry that eliminates noises which would otherwise  
occur during turn-on and turn-off transitions.  
2.0V to 4.0V operation (PVDD and SVDD  
1.8 to 4.0V operation (I2CVDD  
)
)
No output coupling capacitors, snubber networks,  
bootstrap capacitors, or gain-setting resistors required  
Applications  
Notebook PCs  
Desktop PCs  
Mobile Phones  
PDAs  
Portable Electronic Devices  
MP3 Players  
Boomer® is a registered trademark of National Semiconductor Corporation.  
Tru-GND is a trademark of National Semiconductor Corporation.  
© 2007 National Semiconductor Corporation  
201842  
www.national.com  

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