Datasheet > LM4913MH

LM4913MH

更新时间： 2024-01-17 15:26:12

品牌	Logo	应用领域
美国国家半导体 - NSC		音频放大器
页数	文件大小	规格书
15页	763K
描述
2W Monaural, 90mW Stereo Headphone Audio Amplifier

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LM4913MH 数据手册

December 2002

LM4913

2W Monaural, 90mW Stereo Headphone Audio Amplifier

General Description

Key Specifications

The unity-gain stable LM4913 is both a mono differential

output (for bridge-tied loads, or BTL) audio power amplifier

and a single-ended (SE) stereo headphone amplifier. Oper-

ating on a single 5V supply, the mono BTL mode delivers 2W

(typ) to a 4Ω load (Note 1) at 0.3% THD+N. In SE stereo

mode, the amplifier will deliver 90mW to 32Ω loads. The

LM4913 features circuitry that suppresses output transients

("clicks and pops").

BTL output power (R_L= 4Ω)

V_DD= at 3.0V, THD = 1%

V_DD= at 5.0V, THD = 0.3%

660mW (typ)

2W (typ)

SE output power (R_L= 32Ω and THD = 0.1%)

V_DD= at 3.0V

33mW (typ)

V_DD= at 5.0V

90mW (typ)

1µA (typ)

Micro-power shutdown supply current

The LM4913 is designed for notebook and other handheld

portable applications. It delivers high quality output power

from a surface-mount package and requires few external

components. The LM4913 is pin and functionally compatible

with the TPA0213.

PSRR ( 1kHz, 2.9V ≤ VDD ≤

5.1V, (Fig. 1))

52dB (typ)

62dB (typ)

BTL

Other features include an active-low micro-power shutdown

mode and thermal shutdown protection.

Features

The LM4913 is available a space efficient 10-lead exposed-

DAP TSSOP package.

Note 1: When operating on a 5VDC supply, an LM4913MH that has been

properly mounted to a circuit board will deliver 2W into 4Ω. See the Applica-

tion Information sections for further information concerning PCB layout sug-

gestions to maximize the LM4913MH’s output power with a 4Ω load.

n Advanced "click and pop" suppression circuitry

n Stereo headphone amplifier mode

n Low current micro-power shutdown mode

n Thermal shutdown protection circuitry

n 2.5V to 5.5V operation

n Unity-gain stable

n Gain set with external resistors

n Space-saving exposed-DAP TSSOP package

Applications

n PDAs

n Cellular phones

n Handheld portable electronic devices

Connection Diagram

200617A0

Top View

Order Number LM4913MH

See NS package Number MXF10A

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

DS200617

www.national.com

12 3 4 5 6 7...15

中文翻译

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与LM4913MH相关器件

型号	品牌	获取价格	描述	数据表
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
LM49150TL/NOPB	NSC	获取价格	IC 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA20, GREEN, MICRO, SMD-20, Audio/Video Amplifier
LM49150TLX	NSC	获取价格	Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone A

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