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LM48901SQ PDF预览

LM48901SQ

更新时间: 2024-02-21 15:12:54
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器
页数 文件大小 规格书
51页 805K
描述
Audio Power Amplifier Series

LM48901SQ 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVQCCN, LCC32,.2SQ,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
Factory Lead Time:12 weeks风险等级:0.76
商用集成电路类型:AUDIO AMPLIFIERJESD-30 代码:S-PQCC-N32
JESD-609代码:e3长度:5 mm
湿度敏感等级:1信道数量:4
功能数量:1端子数量:32
最高工作温度:85 °C最低工作温度:-40 °C
标称输出功率:3.2 W封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC32,.2SQ,20
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260电源:1.8,5 V
认证状态:Not Qualified座面最大高度:0.8 mm
子类别:Audio/Video Amplifiers最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.7 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5 mmBase Number Matches:1

LM48901SQ 数据手册

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January 5, 2012  
LM48901  
Quad Class D Spatial Array  
General Description  
Features  
The LM48901 is a quad Class D amplifier that utilizes Texas  
Instruments’ proprietary spatial sound processor to create an  
enhanced sound stage for portable multimedia devices. The  
Class D output stages feature Texas Instruments’ edge rate  
control (ERC) PWM architecture that significantly reduces RF  
emissions while preserving audio quality and efficiency.  
The LM48901’s flexible I2S interface is compatible with stan-  
dard serial audio interfaces. A stereo differential-input ADC  
gives the device the ability to process analog stereo audio  
signals.  
The LM48901 is configured through an I2C compatible inter-  
face and is capable of delivering 2.8W/channel of continuous  
output power into an 4load with less than 10% THD+N. A  
2.1 mode pairs two output drivers in parallel, increasing cur-  
rent drive for 4loads.  
Output short circuit and thermal overload protection prevent  
the device from being damaged during fault conditions. Su-  
perior click and pop suppression eliminates audible transients  
on power-up/down and during shutdown. The LM48901 is  
available in space saving microSMD and LLP packages.  
Spatial Sound Processing  
I2S Compatible Input  
Differential-Input Stereo ADC  
Edge Rate Control Reduces EMI while Preserving Audio  
Quality and Efficiency  
Paralleled Output Mode  
Short Circuit and Thermal Overload Protection  
Minimum external components  
Click and Pop suppression  
Micro-power shutdown  
Available in space-saving micro SMD and LLP packages  
Applications  
Laptops  
Tablets  
Desktop Computers  
Sound Bars  
Multimedia Devices  
MP3 Player Accessories  
Key Specifications  
Docking Stations  
■ꢀSNR (A-Weighted)  
■ꢀOutput Power/channel, PVDD = 5V  
RL = 8Ω, THD+N 10%  
RL = 4Ω, THD+N 10%  
■ꢀTHD+N  
■ꢀEfficiency/Channel  
■ꢀPSRR at 217Hz  
■ꢀShutdown current  
87dBA (typ)  
1.7W (typ)  
2.8W (typ)  
0.06% (typ)  
89% (typ)  
71dB (typ)  
A (typ)  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2012 Texas Instruments Incorporated  
301692 SNAS520C  
www.ti.com  

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