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LM4840LQ/NOPB PDF预览

LM4840LQ/NOPB

更新时间： 2024-09-17 15:37:27
品牌 Logo 应用领域
德州仪器 - TI 商用集成电路
页数 文件大小 规格书
23页 967K
描述
2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28, LLP-28

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LM4840LQ/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：QFN
包装说明：VQCCN, LCC28,.2SQ,20针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS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：VOLUME CONTROL CIRCUIT
JESD-30 代码：S-XQCC-N28JESD-609代码：e3
长度：5 mm湿度敏感等级：3
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：UNSPECIFIED
封装代码：VQCCN封装等效代码：LCC28,.2SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, VERY THIN PROFILE
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：0.8 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：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：40宽度：5 mm
Base Number Matches：1

LM4840LQ/NOPB 数据手册

 浏览型号LM4840LQ/NOPB的Datasheet PDF文件第2页浏览型号LM4840LQ/NOPB的Datasheet PDF文件第3页浏览型号LM4840LQ/NOPB的Datasheet PDF文件第4页浏览型号LM4840LQ/NOPB的Datasheet PDF文件第5页浏览型号LM4840LQ/NOPB的Datasheet PDF文件第6页浏览型号LM4840LQ/NOPB的Datasheet PDF文件第7页 
OBSOLETE  
LM4840  
www.ti.com  
SNAS127C –SEPTEMBER 2001–REVISED APRIL 2013  
LM4840 Boomer® Audio Power Amplifier Series Stereo 2W Audio Power Amplifiers  
with Digital Volume Control and Input Mux  
Check for Samples: LM4840  
1
FEATURES  
DESCRIPTION  
The LM4840 is a monolithic integrated circuit that  
provides digital volume control and stereo bridged  
audio power amplifiers capable of producing 2W into  
4Ω with less than 1.0% THD or 2.2W into 3Ω with  
23  
•
PC98 and PC99 Compliant  
Digital Volume Control Interface  
System Beep Detect  
•
•
•
(1)  
less than 1.0% THD (see (2) below).  
Stereo Switchable Bridged/Single-ended  
Power Amplifiers  
Boomer® audio integrated circuits were designed  
specifically to provide high quality audio while  
requiring a minimum amount of external components.  
The LM4840 incorporates a digital volume control,  
stereo bridged audio power amplifiers, an input mux,  
and a last volume level memory function to save the  
volume setting during shutdown. These features  
make it optimally suited for multimedia monitors,  
portable radios, desktop, and portable computer  
applications.  
•
•
•
•
•
“Click and Pop” Suppression Circuitry  
Thermal Shutdown Protection Circuitry  
Input Mux  
Capless Headphone Drivers  
Last Volume Memory From Shutdown  
APPLICATIONS  
•
•
•
Portable and Desktop Computers  
Multimedia Monitors  
The LM4840 features an externally controlled, low-  
power consumption shutdown mode, and both a  
power amplifier and headphone mute for maximum  
system flexibility and performance.  
Portable Radios, PDAs, and Portable TVs  
KEY SPECIFICATIONS  
•
PO at 1% THD+N  
–
–
–
Into 3Ω (LM4840LQ, LM4840MH): 2.2W (typ)  
Into 4Ω (LM4840LQ, LM4840MH): 2.0W (typ)  
Into 8Ω (LM4840): 1.1W (typ)  
(1) When properly mounted to the circuit board, the LM4840LQ  
and LM4840MH will deliver 2W into 4Ω. The LM4840MT will  
deliver 1.1W into 8Ω. See the APPLICATION INFORMATION  
section LM4840LQ and for LM4840MH usage information.  
(2) An LM4840LQ and LM4840MH that have been properly  
mounted to the circuit board and forced-air cooled will deliver  
2.2W into 3Ω.  
•
•
Single-Ended Mode - THD+N at 85mW into  
32Ω: 1.0% (typ)  
Shutdown Current: 0.2μA (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
3
Boomer is a registered trademark of Rockford Corporation.  
All other 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 © 2001–2013, Texas Instruments Incorporated  
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与LM4840LQ/NOPB相关器件

型号 品牌 获取价格 描述 数据表
LM4840LQX TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28
LM4840LQX/NOPB TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28, LLP-28
LM4840MH NSC

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 		Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
LM4840MH/NOPB TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28
LM4840MHX TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28
LM4840MHX/NOPB TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28
LM4840MT NSC

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 		Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
LM4840MT/NOPB TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28
LM4840MTX TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
LM4840MTX/NOPB TI

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 		2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28, TSSOP-28

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