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LM49150中文资料

厂家型号

LM49150

文件大小

768.58Kbytes

页面数量

30

功能描述

LM49150 Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers

Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

TI2

LM49150数据手册规格书PDF详情

1FEATURES

23• E2S Class D Amplifier

• Ground Referenced Headphone Outputs —

Eliminates Output Coupling Capacitors

• I2C Volume and Mode Control

• Mono Earpiece Amplifier

• Flexible Output for Speaker and Headphone

Output

• 20–Bump DSBGA Package

• Soft Enable Function

• “Click and Pop” Suppression Circuitry

• Thermal Shutdown Protection

• Low Supply Current

• Micro-Power Shutdown

KEY SPECIFICATIONS

• Output power at V DD = 5V:

– Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.25W

(typ)

– Headphone: RL = 32Ω SE, THD+N ≤ 1%:

42mW (typ) ground–

Earpiece: R L = 8Ω SE, THD+N ≤ 1%: 135mW

(typ)

• Output power at VDD = 3.3V:

– Speaker: RL = 8Ω BTL, THD+N ≤ 1%:

520mW (typ)

– Headphone: RL = 32Ω BTL, THD+N ≤ 1%:

42mW (typ)

– Earpiece: R L = 8Ω SE, THD+N ≤ 1%: 35mW

(typ)

• Output Offset

– LS Mode: 9mV (typ)

– HP Mode: 1mV (typ)

– Earpiece: 1mV (typ)

• Single Supply Operation (V DD): 2.7 to 5.5V

• I2C Single Supply Operation: 1.7 to 5.5V

APPLICATIONS

• Mobile Phones

• PDAs

• Portable Electronics

DESCRIPTION

The LM49150 is a fully integrated audio subsystem

designed for portable handheld applications such as

cellular phones. Part of TI's PowerWise™ product

family, the LM49150 consumes very low power in the

various modes of operation and still providing great

audio performance. The LM49150 combines a 1.25W

mono E2S (Enhanced Emission Suppression) class D

amplifier, 135mW Class AB earpiece amplifier,

42mW/channel stereo ground reference headphone

amplifiers, volume control, and mixing circuitry into a

single device.

The filterless class D amplifier delivers 1.25W into an

8Ω load with <1% THD+N with a 5V supply. The E2S

class D amplifier features a patented, ultra low EMI

PWM architecture that significantly reduces RF

emissions while preserving audio quality. The

42mW/channel headphone drivers feature TI’s

ground referenced architecture that creates a ground–

referenced output from a single supply, eliminating

the need for bulky and expensive DC-blocking

capacitors, saving space and minimizing cost.

The LM49150 features a fully differential mono input,

and two single-ended stereo inputs. The three inputs

can be mixed/multiplexed to either the speaker or

headphone amplifiers. Each input channel has an

independent, 32-step digital volume control. The

headphone output stage features an additional, 8-

step gain control, while the speaker output stage has a selectable 6dB or 12dB gain. The mixer, volume

control and device mode select are controlled through

an I2C compatible serial interface.

The LM49150’s superior click and pop suppression

eliminates audible transients on power-up/down and

during shutdown. The LM49150 is available in a ultra-

small 20-bump DSBGA package (2.225mm X

2.644mm).

LM49150产品属性

  • 类型

    描述

  • 型号

    LM49150

  • 制造商

    NSC

  • 制造商全称

    National Semiconductor

  • 功能描述

    Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers

更新时间:2025-10-14 16:12:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI(德州仪器)
24+
BGA-20
7969
支持大陆交货,美金交易。原装现货库存。
NS
24+
BGA20
8500
只做原装正品假一赔十为客户做到零风险!!
NSC
24+
20-SMD
7500
NSC正品
25+
QFN
9000
百分百原装正品 真实公司现货库存 本公司只做原装 可
NSC
24+
SMD
6980
原装现货,可开13%税票
NS
09+
20-MicroSMD
3000
原装现货海量库存欢迎咨询
NSC
23+
17+
6
全新原装假一赔十
NS
22+
20-MICROSMD
3000
原装现货库存.价格优势!!
NATIONALSEMICONDUCTOR
23+
NA
8871
专做原装正品,假一罚百!
NSC
25+23+
20-MicroSMD
9489
绝对原装正品全新进口深圳现货

LM49150TLEVAL 价格

参考价格:¥2771.3542

型号:LM49150TLEVAL 品牌:Texas 备注:这里有LM49150多少钱,2025年最近7天走势,今日出价,今日竞价,LM49150批发/采购报价,LM49150行情走势销售排排榜,LM49150报价。