5秒后页面跳转
捷配首页

Datasheet > 消费电路 > 音频/视频放大器> LM4670SDX
LM4670SDX PDF预览

LM4670SDX

更新时间： 2024-11-16 13:09:23
品牌 Logo 应用领域
美国国家半导体 - NSC 开关音频放大器
页数 文件大小 规格书
18页 1077K
描述
IC 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, LLP-8, Audio/Video Amplifier

阅读下载

中文翻译

获取价格

LM4670SDX 技术参数

是否Rohs认证：不符合生命周期：Transferred
包装说明：LLP-8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.45Is Samacsys：N
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
谐波失真：10%JESD-30 代码：S-PDSO-N8
JESD-609代码：e0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：3 W封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装等效代码：DILCC8,.46
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, 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：10 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：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：3 mm
Base Number Matches：1

LM4670SDX 数据手册

 浏览型号LM4670SDX的Datasheet PDF文件第2页浏览型号LM4670SDX的Datasheet PDF文件第3页浏览型号LM4670SDX的Datasheet PDF文件第4页浏览型号LM4670SDX的Datasheet PDF文件第5页浏览型号LM4670SDX的Datasheet PDF文件第6页浏览型号LM4670SDX的Datasheet PDF文件第7页 
December 2004  
LM4670  
Filterless High Efficiency 3W Switching Audio Amplifier  
General Description  
Key Specifications  
The LM4670 is a fully integrated single-supply high efficiency  
switching audio amplifier. It features an innovative modulator  
that eliminates the LC output filter used with typical switching  
amplifiers. Eliminating the output filter reduces external com-  
ponent count, simplifies circuit design, and reduces board  
area. The LM4670 processes analog inputs with a delta-  
sigma modulation technique that lowers output noise and  
THD when compared to conventional pulse width modula-  
tors.  
j
Efficiency at 3.6V, 100mW into 8Ω speaker 77% (typ)  
j
Efficiency at 3.6V, 600mW into 8Ω speaker 88% (typ)  
j
Efficiency at 5V, 1W into 8Ω speaker  
Quiescent current, 3.6V supply  
Total shutdown power supply current  
Single supply range  
87% (typ)  
4.8mA (typ)  
0.01µA (typ)  
2.4V to 5.5V  
j
j
j
The LM4670 is designed to meet the demands of mobile  
phones and other portable communication devices. Operat-  
ing on a single 5V supply, it is capable of driving a 4Ω  
speaker load at a continuous average output of 2.3W with  
less than 1% THD+N. Its flexible power supply requirements  
allow operation from 2.4V to 5.5V.  
Features  
n No output filter required for inductive loads  
n Externally configurable gain  
n Very fast turn on time: 1.35ms (typ)  
n Minimum external components  
n "Click and pop" suppression circuitry  
n Micro-power shutdown mode  
n Short circuit protection  
The LM4670 has high efficiency with speaker loads com-  
pared to a typical Class AB amplifier. With a 3.6V supply  
driving an 8Ω speaker, the IC’s efficiency for a 100mW  
power level is 77%, reaching 88% at 600mW output power.  
n Available in space-saving microSMD and LLP packages  
The LM4670 features a low-power consumption shutdown  
mode. Shutdown may be enabled by driving the Shutdown  
pin to a logic low (GND).  
Applications  
n Mobile phones  
n PDAs  
The gain of the LM4670 is externally configurable which  
allows independent gain control from multiple sources by  
summing the signals.  
n Portable electronic devices  
Typical Application  
20089901  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200899  
www.national.com  
1234567...18

中文翻译

下载PDF

与LM4670SDX相关器件

型号 品牌 获取价格 描述 数据表
LM4670SDX/NOPB TI

获取价格

 		IC,AUDIO AMPLIFIER,SINGLE,LLCC,8PIN,PLASTIC
LM4671 NSC

获取价格

 		Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671_07 NSC

获取价格

 		Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671_08 NSC

获取价格

 		Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671ITL NSC

获取价格

 		Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671ITL/NOPB NSC

获取价格

 		IC 2.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9, MICRO, SMD-9, Audio/Video Amplifier
LM4671ITLX NSC

获取价格

 		Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671ITLX/NOPB NSC

获取价格

 		IC 2.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9, MICRO, SMD-9, Audio/Video Amplifier
LM4673 NSC

获取价格

 		Filterless, 2.65W, Mono, Class D Audio Power Amplifier
LM4673 TI

获取价格

 		2.65W 单声道、模拟输入 D 类扬声器放大器

与LM4670SDX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