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LM4884MH/NOPB PDF预览

LM4884MH/NOPB

更新时间： 2024-09-30 14:43:11
品牌 Logo 应用领域
德州仪器 - TI 放大器光电二极管商用集成电路
页数 文件大小 规格书
20页 842K
描述
2.6W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20, TSSOP-20

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LM4884MH/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：HTSSOP, TSSOP20,.25针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.83
Is Samacsys：N标称带宽：20 kHz
商用集成电路类型：AUDIO AMPLIFIERJESD-30 代码：R-PDSO-G20
JESD-609代码：e3长度：6.5 mm
湿度敏感等级：1信道数量：2
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：2.6 W封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP20,.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：12 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：3 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：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

LM4884MH/NOPB 数据手册

 浏览型号LM4884MH/NOPB的Datasheet PDF文件第2页浏览型号LM4884MH/NOPB的Datasheet PDF文件第3页浏览型号LM4884MH/NOPB的Datasheet PDF文件第4页浏览型号LM4884MH/NOPB的Datasheet PDF文件第5页浏览型号LM4884MH/NOPB的Datasheet PDF文件第6页浏览型号LM4884MH/NOPB的Datasheet PDF文件第7页 
OBSOLETE  
LM4884  
www.ti.com  
SNAS267C –JANUARY 2005–REVISED APRIL 2013  
LM4884  
2.1W Differential Input, BTL Output Stereo Audio  
Amplifier with RF Suppression and Shutdown  
Check for Samples: LM4884  
1
FEATURES  
DESCRIPTION  
The LM4884 features differential stereo inputs, BTL  
(bridge-tied load) outputs, and four externally  
selectable fixed gains.  
2
•
Improved RF Immunity, by Up to 28dB Over  
Previous Designs (Such as the LM4874) in  
Selected Applications.  
The LM4884 also features proprietary internal  
circuitry that suppresses the coupling of RF signals  
into the chip. This is important because certain types  
of RF signals (such as GSM) can couple into audio  
amplifiers in such a way that part of the signal is  
heard through the speaker. The RF suppression  
circuitry in the LM4884 makes it well-suited for  
notebook and portable applications in which strong  
RF signals generated by an antenna from a PC  
wireless card or a cellular phone may couple audibly  
into the amplifier.  
•
•
Fully Differential Input and Output  
Internal Gain Set: 6dB, 10dB, 15.6dB, and  
21.6dB  
•
•
•
•
•
Improved "Click and Pop" Suppression  
Thermal Shutdown Protection Circuit  
Ultra Low Current Micropower Shutdown Mode  
3.0V to 5.5V Operation  
Available in Space-Saving Exposed-DAP  
TSSOP Package  
Operating on a single 5V supply, the LM4884 delivers  
1.2W, 1.9W, or 2.1W (typ) of output power to an 8Ω,  
4Ω, or 3Ω BTL load (1), respectively, with less than  
1% THD+N. The LM4884's gain is selected using two  
digital inputs. The nominal gain values are 6dB,  
10dB, 15.6dB, and 21.6dB.  
APPLICATIONS  
•
•
•
Notebook Computers  
PDAs  
Portable Electronic Devices  
Other features of the LM4884 are that it delivers high-  
quality output power from a surface-mount package,  
requires few external components, has an active-low  
micropower shutdown mode input, and has thermal  
shutdown protection.  
KEY SPECIFICATIONS  
•
•
•
BTL Output Power  
–
RL = 3Ω, VDD = 5.0V, and THD+N = 1%: 2.1W  
(typ)  
BTL Output Power  
–
RL = 4Ω, VDD = 5.0V, and THD+N = 1%: 1.9W  
(typ)  
BTL Output Power  
–
RL = 8Ω, VDD = 5.0V, and THD+N = 1%: 1.2W  
(typ)  
•
•
Micropower Shutdown Current: 0.1μA (typ)  
(1) An LM4884MH that has been properly mounted to a circuit  
board with a copper heatsink area of at least 2in2 will deliver  
1.9W into 4Ω or 2.1W into 3Ω.  
PSRR ( @ 1kHz, VDD = 5V, (Figure 1)): 62dB  
(typ)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005–2013, Texas Instruments Incorporated  
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