LM4911

更新时间： 2024-10-01 23:16:47

品牌	Logo	应用领域
美国国家半导体 - NSC		放大器
页数	文件大小	规格书
18页	925K
描述
Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM4911 数据手册

July 2002

LM4911

Stereo 40mW Low Noise Headphone Amplifier with

Selectable Capacitive Coupled or OCL Output

General Description

Key Specifications

n PSRR at 217 Hz and 1kHz

65dB (typ)

The LM4911 is an stereo audio power amplifier capable of

delivering 40mW per channel of continuous average power

into a 16Ω load or 25mW per channel into a 32Ω load at 1%

THD+N from a 3V power supply.

n Output Power at 1kHz with V_DD= 2.4V, 1% THD+N into

a 16Ω load 25mW (typ)

n Output Power at 1kHz with V_DD= 3V, 1% THD+N into a

16Ω load

n Shutdown Current

n Output Voltage change on release from Shutdown

V_DD= 2.4V, R_L= 16Ω (C-Coupled) 1mV (max)

n Mute Current 100µA (max)

40mW (typ)

2.0µA (max)

Boomer audio power amplifiers were designed specifically to

provide high quality output power with a minimal amount of

external components. Since the LM4911 does not require

bootstrap capacitors or snubber networks, it is optimally

suited for low-power portable systems. In addition, the

LM4911 may be configured for either single-ended capaci-

tively coupled outputs or for OCL outputs (patent pending).

Features

The LM4911 features a low-power consumption shutdown

mode and a power mute mode that allows for faster turn on

time with less than 1mV voltage change at outputs on re-

lease. Additionally, the LM4911 features an internal thermal

shutdown protection mechanism.

n OCL or capacitively coupled outputs (patent pending)

n External gain-setting capability

n Available in space-saving MSOP package

n Ultra low current shutdown mode

n Mute mode allows fast turn-on (1ms) with less than 1mV

change on outputs

The LM4911 is unity gain stable and may be configured with

external gain-setting resistors.

n 2V - 5.5V operation

n Ultra low noise

Applications

n Portable CD players

n PDAs

n Portable electronics devices

Block Diagram

20031478

FIGURE 1. Block Diagram

Boomer^®is a registered trademark of National Semiconductor Corporation.

DS200314

www.national.com

12 3 4 5 6 7...18

中文翻译

下载PDF

与LM4911相关器件

型号	品牌	获取价格	描述	数据表
LM4911_15	TI	获取价格	Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output
LM4911LD	NSC	获取价格	Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output
LM4911LD/NOPB	ROCHESTER	获取价格	0.145W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10
LM4911LD/NOPB	TI	获取价格	0.145W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10, LLP-10
LM4911MM	TI	获取价格	0.145W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10
LM4911MM	NSC	获取价格	Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output
LM4911MM/NOPB	TI	获取价格	Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output
LM4911MMX	NSC	获取价格	IC 0.145 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10, MSOP-10, Audio/Video Amplifier
LM4911Q	TI	获取价格	Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output
LM4911QMM/NOPB	TI	获取价格	Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output

与LM4911相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

38
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

32
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

29
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

40

产品中心

服务支持

精选活动

关于我们

帮助中心

LM4911

LM4911 数据手册

与LM4911相关器件

与LM4911相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM4911

LM4911 数据手册

与LM4911相关器件

与LM4911相关文章

您还可以找

您在本页遇到什么问题？