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LM48861TM PDF预览

LM48861TM

更新时间: 2024-01-13 19:04:43
品牌 Logo 应用领域
美国国家半导体 - NSC 消费电路商用集成电路音频放大器视频放大器
页数 文件大小 规格书
16页 344K
描述
Ground-Referenced, Ultra Low Noise, Stereo Headphone Amplifier

LM48861TM 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:VFBGA, BGA12,3X4,16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.33.00.01Factory Lead Time:1 week
风险等级:5.71标称带宽:22 kHz
商用集成电路类型:AUDIO AMPLIFIERJESD-30 代码:R-PBGA-B12
JESD-609代码:e1长度:1.61 mm
湿度敏感等级:1信道数量:2
功能数量:1端子数量:12
最高工作温度:85 °C最低工作温度:-40 °C
标称输出功率:0.024 W封装主体材料:PLASTIC/EPOXY
封装代码:VFBGA封装等效代码:BGA12,3X4,16
封装形状:RECTANGULAR封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260电源:1.5 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:2.8 mA
最大供电电压 (Vsup):2.8 V最小供电电压 (Vsup):1.2 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:0.4 mm端子位置:BOTTOM
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:1.21 mm
Base Number Matches:1

LM48861TM 数据手册

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March 16, 2010  
LM48861  
Ground-Referenced, Ultra Low Noise, Stereo Headphone  
Amplifier  
General Description  
Key Specifications  
The LM48861 is a single supply, ground-referenced stereo  
headphone amplifier. Part of National's PowerWise® product  
family, the LM48861 consumes only 3mW of power, yet still  
provides great audio performance. The ground-referenced  
architecture eliminates the larger DC blocking capacitors re-  
quired by traditional headphone amplifier's saving board  
space and reducing cost.  
■ꢀOutput Power/channel at  
VDD = 1.5V, THD+N = 1%  
RL = 16Ω  
RL = 32Ω  
12mW (typ)  
13mW (typ)  
■ꢀOutput Power/channel at  
VDD = 1.8V, THD+N = 1%  
The LM48861 features common-mode sensing that corrects  
for any differences between the amplifier ground and the po-  
tential at the headphone return terminal, minimizing noise  
created by any ground mismatches.  
RL = 16Ω  
RL = 32Ω  
24mW (typ)  
22mW (typ)  
■ꢀQuiescent Power Supply Current  
at 1.5V  
2mA (typ)  
83dB (typ)  
The LM48861 delivers 22mW/channel into a 32load with  
<1% THD+N with a 1.8V supply. Power supply requirements  
allow operation from 1.2V to 2.8V. High power supply rejec-  
tion ratio (PSRR), 83dB at 217Hz, allows the device to oper-  
ate in noisy environments without additional power supply  
conditioning. A low power shutdown mode reduces supply  
current consumption to 0.01µA.  
■ꢀPSRR at 217Hz  
■ꢀShutdown Current  
0.01μA (typ)  
Features  
Ground referenced outputs – eliminates output coupling  
capacitors  
Superior click and pop suppression eliminates audible tran-  
sients on power-up/down and during shutdown. The  
LM48861 is available in an ultra-small 12-bump, 0.4mm pitch,  
micro SMD package (1.215mm x 1.615mm).  
Common-mode sensing  
Advanced click-and-pop suppression  
Low supply current  
Minimum external components  
Micro-power shutdown  
ESD protection of 8kV HBM contact  
Available in space-saving 12-bump microSMD package  
Applications  
Mobile Phones  
Portable electronic devices  
MP3 Players  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2010 National Semiconductor Corporation  
300541  
www.national.com  

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