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LM4839 PDF预览

LM4839

更新时间: 2024-02-08 22:16:08
品牌 Logo 应用领域
美国国家半导体 - NSC 复用器放大器功率放大器
页数 文件大小 规格书
34页 1106K
描述
Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux

LM4839 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:TSSOP, TSSOP28,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.74信道分离:65 dB
商用集成电路类型:TONE CONTROL CIRCUITJESD-30 代码:R-PDSO-G28
JESD-609代码:e0长度:9.7 mm
湿度敏感等级:3频带数量:1
信道数量:2功能数量:1
端子数量:28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:TSSOP封装等效代码:TSSOP28,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):235电源:5 V
认证状态:Not Qualified座面最大高度:1.2 mm
子类别:Audio/Video Amplifiers最大压摆率:30 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:Tin/Lead (Sn85Pb15)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:4.4 mm
Base Number Matches:1

LM4839 数据手册

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April 2002  
LM4839  
Stereo 2W Audio Power Amplifiers  
with DC Volume Control, Bass Boost, and Input Mux  
General Description  
Key Specifications  
n PO at 1% THD+N  
The LM4839 is a monolithic integrated circuit that provides  
DC volume control, and stereo bridged audio power amplifi-  
ers capable of producing 2W into 4(Note 1) with less than  
1.0% THD+N, or 2.2W into 3(Note 2) with less than 1.0%  
THD+N.  
n
n
n
into 3(LQ & MTE)  
into 4(LQ & MTE)  
into 8(LM4839) (MT, MTE, & LQ)  
2.2W(typ)  
2.0W(typ)  
1.1W(typ)  
n Single-ended mode - THD+N at 85mW into  
Boomer® audio integrated circuits were designed specifically  
to provide high quality audio while requiring a minimum  
amount of external components. The LM4839 incorporates a  
DC volume control, stereo bridged audio power amplifiers,  
selectable gain or bass boost, and an input mux making it  
optimally suited for multimedia monitors, portable radios,  
desktop, and portable computer applications.  
32Ω  
1.0%(typ)  
0.2µA(typ)  
n Shutdown current  
Features  
n DC Volume Control Interface  
n Input mux  
n System Beep Detect  
The LM4839 features an externally controlled, low-power  
consumption shutdown mode, and both a power amplifier  
and headphone mute for maximum system flexibility and  
performance.  
n Stereo switchable bridged/single-ended power amplifiers  
n Selectable internal/external gain and bass boost  
n “Click and pop” suppression circuitry  
Note 1: When properly mounted to the circuit board, the LM4839LQ and  
LM4839MTE will deliver 2W into 4. The LM4839MT will deliver 1.1W into  
8. See the Application Information section for LM4839LQ and LM4839MTE  
usage information.  
n Thermal shutdown protection circuitry  
Applications  
n Portable and Desktop Computers  
n Multimedia Monitors  
Note 2: An LM4839LQ and LM4839MTE that have been properly mounted  
to the circuit board and forced-air cooled will deliver 2.2W into 3.  
n Portable Radios, PDAs, and Portable TVs  
Connection Diagrams  
LLP Package  
DS200134-83  
Top View  
Order Number LM4839LQ  
See NS Package Number LQA028AA for Exposed-DAP LLP  
Boomer® is a registered trademark of NationalSemiconductor Corporation.  
© 2002 National Semiconductor Corporation  
DS200134  
www.national.com  

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