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LM4923MMX/NOPB PDF预览

LM4923MMX/NOPB

更新时间： 2024-02-07 06:35:46
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
22页 956K
描述
1.1W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, PLASTIC, VSSOP-8

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LM4923MMX/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：TSSOP, TSSOP8,.19
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.16
商用集成电路类型：AUDIO AMPLIFIER谐波失真：1%
JESD-30 代码：S-PDSO-G8JESD-609代码：e3
长度：3 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C标称输出功率：1.1 W
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP8,.19封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH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：1.1 mm子类别：Audio/Video Amplifiers
最大压摆率：9 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.4 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：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

LM4923MMX/NOPB 数据手册

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LM4923, LM4923LQBD  
www.ti.com  
SNAS211E –JULY 2004–REVISED MAY 2013  
LM4923  
1.1 Watt Fully Differential Audio Power Amplifier  
With Shutdown Select  
Check for Samples: LM4923, LM4923LQBD  
1
FEATURES  
DESCRIPTION  
The LM4923 is a fully differential audio power  
amplifier primarily designed for demanding  
applications in mobile phones and other portable  
communication device applications. It is capable of  
delivering 1.1 watt of continuous average power to an  
8Ω BTL load with less than 1% distortion (THD+N)  
from a 5VDC power supply.  
2
•
•
•
•
•
Fully Differential Amplification  
Available in Space-saving WQFN Package  
Ultra Low Current Shutdown Mode  
Can Drive Capacitive Loads up to 100pF  
Improved Pop & Click Circuitry Eliminates  
Noises During Turn-on and Turn-off  
Transitions  
Boomer audio power amplifiers were designed  
specifically to provide high quality output power with a  
minimal amount of external components. The  
LM4923 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.  
•
•
2.4 - 5.5V Operation  
No Output Coupling Capacitors, Snubber  
Networks or Bootstrap Capacitors Required  
APPLICATIONS  
•
•
•
Mobile Phones  
PDAs  
The LM4923 features a low-power consumption  
shutdown mode. To facilitate this, Shutdown may be  
enabled by logic low. Additionally, the LM4923  
features an internal thermal shutdown protection  
mechanism.  
Portable Electronic Devices  
KEY SPECIFICATIONS  
•
•
•
Improved PSRR at 217Hz 85dB(typ)  
The LM4923 contains advanced pop & click circuitry  
which eliminates noises which would otherwise occur  
during turn-on and turn-off transitions.  
Power Output at 5.0V @ 1% THD+N 1.1W(typ)  
Power Output at 3.3V @ 1% THD+N  
400mW(typ)  
•
Shutdown Current 0.1μA(typ)  
Connection Diagrams  
V
-
O
GND  
7
IN-  
V -  
O
8
IN+  
GND  
IN-  
1
2
6
5
BYP  
SD  
V
DD  
BYP  
SD  
V
+
O
IN+  
3
4
V
DD  
V
+
O
Figure 1. NGP Package, Top View  
See Package Number NGP0008A  
Figure 2. 8 Pin VSSOP Package, Top View  
See Package Number DGK0008A  
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.  
All trademarks are the property of their respective owners.  
2
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 © 2004–2013, Texas Instruments Incorporated  
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