LM4865MM

更新时间： 2024-11-17 22:51:39

品牌	Logo	应用领域
美国国家半导体 - NSC		开关放大器功率放大器
页数	文件大小	规格书
9页	343K
描述
750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch

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中文翻译

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LM4865MM 数据手册

December 1999

LM4865

750 mW Audio Power Amplifier with DC Volume Control

and Headphone Switch

n Hand held radio

n Other portable audio devices

General Description

The LM4865 is a mono bridged audio power amplifier with

DC volume control, capable of delivering 750 mW of continu-

ous average power into an 8Ω load with less than 1% THD

Key Specifications

n P_Oat 1.0% THD+N into 8Ω (SOP): 750 mW (typ)

n P_Oat 10% THD+N into 8Ω (SOP): 1W (typ)

n Shutdown Current: 0.7 µA (typ)

from a 5V power supply. Switching between bridged speaker

mode and headphone (single ended) mode is accomplished

via a headphone sense pin. In addition, LM4865 is set into

low current consumption shutdown mode (0.7 µA typical) by

lowering the DC Vol/SD pin to below 0.3V.

Features

n DC volume control

n Headphone amplifier mode

n “Click and pop” suppression

n Shutdown control when volume control pin is low

n Thermal shutdown protection

Boomer audio power amplifiers are designed specifically to

provide high power audio output, with quality sound, from a

low supply voltage source while requiring the minimal

amount of external components.

Applications

n GSM phones and accessories, DECT, office phones

Typical Application

Connection Diagram

MSOP, SOP Package

DS101025-2

Top View

Order Number LM4865M, LM4865MM

See NS Package Number M08A, MUA08A

DS101025-1

FIGURE 1. Typical Audio Amplifier

Application Circuit

™

BOOMER is a trademark of National Semiconductor Corporation.

DS101025

www.national.com

12 3 4 5 6 7...9

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LM4865MM 替代型号

型号	品牌	替代类型	描述	数据表
LM4865MM/NOPB	TI	功能相似	LM4865 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch

与LM4865MM相关器件

型号	品牌	获取价格	描述	数据表
LM4865MM/NOPB	TI	获取价格	LM4865 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
LM4865MMX	ETC	获取价格	Single Audio Amplifier
LM4865MMX/NOPB	TI	获取价格	LM4865 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
LM4865MWC	NSC	获取价格	IC 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, UUC, WAFER, Audio Control IC
LM4865MWC	TI	获取价格	1 CHANNEL(S), VOLUME CONTROL CIRCUIT, UUC, WAFER
LM4865MX	TI	获取价格	LM4865 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
LM4865MX/NOPB	TI	获取价格	LM4865 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch
LM4866	NSC	获取价格	2.2W Stereo Audio Amplifier
LM4866LQ	NSC	获取价格	2.2W Stereo Audio Amplifier
LM4866LQ/NOPB	TI	获取价格	3.2W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC24, LLP-24