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LM4838MTEX PDF预览

LM4838MTEX

更新时间： 2024-11-07 19:59:43
品牌 Logo 应用领域
美国国家半导体 - NSC 光电二极管商用集成电路
页数 文件大小 规格书
38页 2330K
描述
IC 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28, Audio Control IC

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中文翻译

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LM4838MTEX 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TSSOP-28Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.02信道分离：65 dB
商用集成电路类型：VOLUME CONTROL CIRCUITJESD-30 代码：R-PDSO-G28
JESD-609代码：e0长度：9.7 mm
湿度敏感等级：1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：HTSSOP封装等效代码：TSSOP28,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：5 V
认证状态：Not Qualified座面最大高度：1.1 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 (Sn/Pb)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：40宽度：4.4 mm
Base Number Matches：1

LM4838MTEX 数据手册

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November 2004  
LM4838  
Stereo 2W Audio Power Amplifiers  
with DC Volume Control and Selectable Gain  
General Description  
Key Specifications  
n PO at 1% THD+N  
The LM4838 is a monolithic integrated circuit that provides  
DC volume control, and stereo bridged audio power amplifi-  
ers capable of producing 2W into 4Ω (Note 1) with less than  
1.0% THD or 2.2W into 3Ω (Note 2) with less than 1.0%  
THD.  
n
n
n
into 3Ω (LQ & MTE)  
into 4Ω (LQ, MTE, GR)  
into 8Ω (MT, MTE, ITL, LQ, & GR)  
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 LM4838 incorporates a  
DC volume control, stereo bridged audio power amplifiers  
and a selectable gain or bass boost, making it optimally  
suited for multimedia monitors, portable radios, desktop, and  
portable computer applications.  
32Ω  
1.0%(typ)  
0.7µA (typ)  
n Shutdown current  
Features  
n DC Volume Control Interface  
n System Beep Detect  
n Stereo switchable bridged/single-ended power amplifiers  
n Selectable internal/external gain and bass boost  
n “Click and pop” suppression circuitry  
The LM4838 features an externally controlled, low-power  
consumption shutdown mode, and both a power amplifier  
and headphone mute for maximum system flexibility and  
performance.  
n Thermal shutdown protection circuitry  
Note 1: When properly mounted to the circuit board, the LM4838LQ,  
LM4838MTE, and LM4838GR will deliver 2W into 4Ω. The LM4838MT and  
LM4838ITL will deliver 1.1W into 8Ω. See Application Information section  
Exposed-DAP package PCB Mounting Considerations for more informa-  
tion.  
Applications  
n Portable and Desktop Computers  
n Multimedia Monitors  
Note 2: An LM4838LQ and LM4838MTE that have been properly mounted  
to the circuit board and forced-air cooled will deliver 2.2W into 3Ω.  
n Portable Radios, PDAs, and Portable TVs  
Block Diagram  
20013301  
FIGURE 1. LM4838 Block Diagram  
Boomer® is a registered trademark of NationalSemiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200133  
www.national.com  
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LM4838MTEX/NOPB TI

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 		IC 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28, Audio Control IC
LM4839 NSC

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 		Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux
LM4839LQ NSC

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 		Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux
LM4839LQ ROCHESTER

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 		2 CHANNEL(S), TONE CONTROL CIRCUIT, CQCC28, LLP-28
LM4839LQ/NOPB TI

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 		2 CHANNEL(S), TONE CONTROL CIRCUIT, CQCC28, LLP-28
LM4839LQX/NOPB NSC

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 		IC 2 CHANNEL(S), TONE CONTROL CIRCUIT, CQCC28, LLP-28, Audio Control IC
LM4839MT NSC

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 		Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux

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