5秒后页面跳转
捷配首页

Datasheet > LM4990LD/NOPB
LM4990LD/NOPB PDF预览

LM4990LD/NOPB

更新时间： 2024-11-26 01:05:31
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
28页 1277K
描述
2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level

阅读下载

中文翻译

获取价格

LM4990LD/NOPB 数据手册

 浏览型号LM4990LD/NOPB的Datasheet PDF文件第2页浏览型号LM4990LD/NOPB的Datasheet PDF文件第3页浏览型号LM4990LD/NOPB的Datasheet PDF文件第4页浏览型号LM4990LD/NOPB的Datasheet PDF文件第5页浏览型号LM4990LD/NOPB的Datasheet PDF文件第6页浏览型号LM4990LD/NOPB的Datasheet PDF文件第7页 
LM4990  
www.ti.com  
SNAS184E –DECEMBER 2002–REVISED MAY 2013  
LM4990  
2 Watt Audio Power Amplifier with Selectable  
Shutdown Logic Level  
Check for Samples: LM4990  
1
FEATURES  
DESCRIPTION  
The LM4990 is an audio power amplifier primarily  
designed for demanding applications in mobile  
phones and other portable communication device  
applications. It is capable of delivering 1.25 watts of  
continuous average power to an 8Ω BTL load and 2  
watts of continuous average power (NGZ and DGQ  
only) to a 4Ω BTL load with less than 1% distortion  
(THD+N+N) from a 5VDC power supply.  
2
•
Available in Space-Saving Packages: WSON,  
Exposed-DAP MSOP-PowerPAD, VSSOP, and  
DSBGA  
•
•
Ultra Low Current Shutdown Mode  
Improved Click and Pop Circuitry Eliminates  
Noise During Turn-On and Turn-Off  
Transitions  
•
•
2.2 - 5.5V Operation  
Boomer audio power amplifiers were designed  
specifically to provide high quality output power with a  
minimal amount of external components. The  
LM4990 does not require output coupling capacitors  
or bootstrap capacitors, and therefore is ideally suited  
for mobile phone and other low voltage applications  
where minimal power consumption is a primary  
requirement.  
No Output Coupling Capacitors, Snubber  
Networks or Bootstrap Capacitors Required  
•
•
•
Unity-Gain Stable  
External Gain Configuration Capability  
User Selectable Shutdown High or Low Logic  
Level  
The LM4990 features a low-power consumption  
shutdown mode. To facilitate this, Shutdown may be  
enabled by either logic high or low depending on  
mode selection. Driving the shutdown mode pin either  
high or low enables the shutdown pin to be driven in  
a likewise manner to enable shutdown.  
APPLICATIONS  
•
•
•
Mobile Phones  
PDAs  
Portable Electronic Devices  
The LM4990 contains advanced pop & click circuitry  
which eliminates noise which would otherwise occur  
during turn-on and turn-off transitions.  
KEY SPECIFICATIONS  
•
•
Improved PSRR at 217Hz & 1KHz: 62dB  
Power Output at 5.0V, 1% THD+N,  
The LM4990 is unity-gain stable and can be  
configured by external gain-setting resistors.  
–
4Ω (NGZ and DGQ only): 2W (Typ)  
•
•
•
•
Power Output at 5.0V, 1% THD+N, 8Ω: 1.25W  
(Typ)  
Power Output at 3.0V, 1% THD+N, 4Ω: 600mW  
(Typ)  
Power Output at 3.0V, 1% THD+N, 8Ω: 425mW  
(Typ)  
Shutdown Current: 0.1µA (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 © 2002–2013, Texas Instruments Incorporated  
1234567...28

中文翻译

下载PDF

与LM4990LD/NOPB相关器件

型号 品牌 获取价格 描述 数据表
LM4990LDX NSC

获取价格

 		IC 2 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10, Audio/Video Amplifier
LM4990MH NSC

获取价格

 		2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
LM4990MH/NOPB TI

获取价格

 		2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
LM4990MH/NOPB NSC

获取价格

 		IC 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, TSSOP-10, Audio/Video Amplifier
LM4990MHX/NOPB NSC

获取价格

 		IC,AUDIO AMPLIFIER,SINGLE,TSSOP,10PIN,PLASTIC
LM4990MM NSC

获取价格

 		2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
LM4990MM/NOPB TI

获取价格

 		2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
LM4990MMX NSC

获取价格

 		2W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, MSOP-8
LM4990MMX/NOPB TI

获取价格

 		2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
LM4991 NSC

获取价格

 		3W Audio Power Amplifier with Shutdown Mode

与LM4990LD/NOPB相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证