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LM4875M/NOPB PDF预览

LM4875M/NOPB

更新时间: 2024-02-24 22:27:11
品牌 Logo 应用领域
美国国家半导体 - NSC 开关放大器功率放大器
页数 文件大小 规格书
13页 670K
描述
IC 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO8, SOIC-8, Audio Control IC

LM4875M/NOPB 技术参数

是否Rohs认证:符合生命周期:Transferred
包装说明:SOP, SOP8,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.05Is Samacsys:N
商用集成电路类型:VOLUME CONTROL CIRCUITJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.902 mm
湿度敏感等级:1信道数量:1
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:3/5 V认证状态:Not Qualified
座面最大高度:1.753 mm子类别:Audio/Video Amplifiers
最大压摆率:7 mA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:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3.899 mmBase Number Matches:1

LM4875M/NOPB 数据手册

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January 2002  
LM4875  
750 mW Audio Power Amplifier with DC Volume Control  
and Headphone Switch  
General Description  
Applications  
n GSM phones and accessories, DECT, office phones  
n Hand held radio  
The LM4875 is a mono bridged audio power amplifier with  
DC voltage volume control. The LM4875 is capable of deliv-  
ering 750mW of continuous average power into an 8load  
with less than 1% THD when powered by a 5V power supply.  
Switching between bridged speaker mode and headphone  
(single ended) mode is accomplished using the headphone  
sense pin. To conserve power in portable applications, the  
LM4875’s micropower shutdown mode (IQ = 0.7µA, typ) is  
activated when less than 300mV is applied to the DC Vol/SD  
pin.  
n Other portable audio devices  
Key Specifications  
j
PO at 1.0% THD+N into 8Ω  
PO at 10% THD+N into 8Ω  
Shutdown current  
750mW (typ)  
j
j
j
1W (typ)  
0.7µA(typ)  
Supply voltage range  
2.7V to 5.5V  
Boomer audio power amplifiers are designed specifically to  
provide high power audio output while maintaining high fidel-  
ity. They require few external components and operate on  
low supply voltages.  
Features  
n Precision DC voltage volume control  
n Headphone amplifier mode  
n “Click and pop” suppression  
n Shutdown control when volume control pin is low  
n Thermal shutdown protection  
Typical Application  
Connection Diagram  
Small Outline Package (SO)  
Mini Small Outline Package (MSOP)  
10104202  
Top View  
Order Number LM4875M, LM4875MM  
See NS Package Number M08A, MUA08A  
10104201  
FIGURE 1. Typical Audio Amplifier  
Application Circuit  
BOOMER is a trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS101042  
www.national.com  

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