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LM4980 PDF预览

LM4980

更新时间: 2024-02-05 11:45:50
品牌 Logo 应用领域
美国国家半导体 - NSC 电池音频放大器
页数 文件大小 规格书
20页 1320K
描述
2 Cell Battery, 1mA, 42mW Per Channel High Fidelity Stereo Headphone Audio Amplifier for MP3 players

LM4980 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SON
包装说明:HVSON, SOLCC10,.11,20针数:10
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.54
标称带宽:20 kHz商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:S-XDSO-N10JESD-609代码:e0
长度:3 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:10最高工作温度:85 °C
最低工作温度:-40 °C标称输出功率:0.042 W
封装主体材料:UNSPECIFIED封装代码:HVSON
封装等效代码:SOLCC10,.11,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:1.8/3 V认证状态:Not Qualified
座面最大高度:0.8 mm子类别:Audio/Video Amplifiers
最大压摆率:1.5 mA最大供电电压 (Vsup):3.3 V
最小供电电压 (Vsup):1.5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

LM4980 数据手册

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July 2005  
LM4980  
2 Cell Battery, 1mA, 42mW Per Channel High Fidelity  
Stereo Headphone Audio Amplifier for MP3 players  
General Description  
Key Specifications  
The LM4980 is a stereo headphone audio amplifier, which  
when connected to a 3.0V supply, delivers 42mW to a 16  
load with less than 1% THD+N. With the LM4980 packaged  
in the SD package, the customer benefits include low profile  
and small size. This package minimizes PCB area and maxi-  
mizes output power.  
j
Output power  
(RL = 16, VDD = 3.0V, THD+N = 1%)  
Quiescent current (VDD = 3V)  
Micropower shutdown current  
42mW (typ)  
1mA (typ)  
0.1µA (typ)  
<
j
j
j
j
j
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Supply voltage operating range  
1.5V VDD 3.3V  
The LM4980 features circuitry that significantly reduces out-  
put transients (“clicks” and “pops”) while driving headphones  
during device turn-on and turn-off without costly external  
additional circuitry. The LM4980 also includes an externally  
controlled low-power consumption active-low shutdown  
mode, and thermal shutdown. Boomer audio power amplifi-  
ers are designed specifically to use few external compo-  
nents and provide high quality output power in a surface  
mount package.  
@
PSRR 1kHz, VDD = 3.0V  
90dB (typ)  
@
PSRR 217Hz, VDD = 3.0V  
100dB (typ)  
Features  
n 2-cell 1.5V to 3.3V battery operation  
n Unity-gain stable  
n “Click and pop” suppression circuitry for shutdown and  
power on/off transient with headphone loads  
n Active low micro-power shutdown  
n Thermal shutdown protection circuitry  
Applications  
n Portable two-cell audio products  
n Portable two-cell electronic devices  
n Portable MP3 player/recorders  
Typical Application  
20142901  
FIGURE 1. Block Diagram  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2005 National Semiconductor Corporation  
DS201429  
www.national.com  

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