Datasheet > LM4912MMX/NOPB

LM4912MMX/NOPB

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
德州仪器 - TI		驱动光电二极管
页数	文件大小	规格书
16页	459K
描述
IC,HEADPHONE DRIVER,TSSOP,10PIN,PLASTIC

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技术参数
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LM4912MMX/NOPB 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TSSOP, TSSOP10,.19,20	Reach Compliance Code：	compliant
风险等级：	5.83	JESD-30 代码：	R-PDSO-G10
JESD-609代码：	e3	湿度敏感等级：	1
端子数量：	10	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP10,.19,20
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：	2.4/5 V	认证状态：	Not Qualified
子类别：	Audio/Video Amplifiers	最大压摆率：	5 mA
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：	0.5 mm	端子位置：	DUAL
Base Number Matches：	1

LM4912MMX/NOPB 数据手册

June 17, 2008

LM4912

Stereo 40mW Low Noise Headphone Amplifier

General Description

Key Specifications

The LM4912 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 form a 3V power supply.

PSRR at 217 Hz and 1kHz

65dB (typ)

■

Output Power at 1kHz with V_DD= 2.4V, 1% THD 25mW

■

+N into a 16Ω load

(typ)

40mW

(typ)

Output Power at 1kHz with V_DD= 3V, 1% THD

+N into a 16Ω load

■

Boomer audio power amplifiers were designed specifically to

provide high quality output power with a minimal amount of

external components. Since the LM4912 does not require

bootstrap capacitors or snubber networks, it is optimally suit-

ed for low-power portable systems.

Shutdown Current

1.0µA (max)

■

Output Voltage change on release from Shutdown 1mV

V_DD= 2.4V, R_L= 16Ω

Output Noise, 20Hz to 20kHz, A-weighted

(max)

10µV (typ)

■

The LM4912 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 release.

Additionally, the LM4912 features an internal thermal shut-

down protection mechanism.

Features

External gain-setting capability

■

Available in space-saving MSOP package

Ultra low current shutdown mode

The LM4912 is unity gain stable and may be configured with

external gain-setting resistors.

Mute mode allows fast turn-on (10ms) with less than 1mV

change on outputs

■

2.0V - 5.5V operation

Ultra low noise

■

Operation at low supply voltages

Applications

Portable CD players

■

PDAs

Portable electronics devices

Typical Application

20048180

FIGURE 1. Typical Capacitive Coupled Output Configuration Circuit

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

200481

www.national.com

12 3 4 5 6 7...16

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与LM4912MMX/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM4913	NSC	获取价格	2W Monaural, 90mW Stereo Headphone Audio Amplifier
LM4913MH	NSC	获取价格	2W Monaural, 90mW Stereo Headphone Audio Amplifier
LM4913MHX/NOPB	TI	获取价格	IC,HEADPHONE DRIVER,TSSOP,10PIN,PLASTIC
LM4913MM	NSC	获取价格	2W Monaural, 90mW Stereo Headphone Audio Amplifier
LM4914	NSC	获取价格	1W Monaural, 85mW Stereo Headphone Audio Amplifier
LM4914MH	NSC	获取价格	1W Monaural, 85mW Stereo Headphone Audio Amplifier
LM4914MHX/NOPB	NSC	获取价格	IC,HEADPHONE DRIVER,TSSOP,10PIN,PLASTIC
LM4915	NSC	获取价格	Pseudo-Differential Mono Headphone Amplifier with Fixed 6dB Gain
LM49150	NSC	获取价格	Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone A
LM49150TL	NSC	获取价格	Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone A

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