Datasheet > LM4911

LM4911

更新时间： 2024-10-03 02:58:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
30页	1806K
描述
Stereo 40mW Low Noise Headphone Amplifier with Selectable Capacitive Coupled or OCL Output

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LM4911 数据手册

LM4911, LM4911Q

www.ti.com

SNAS152M –MAY 2004–REVISED JUNE 2011

LM4911/LM4911Q

Stereo 40mW Low Noise Headphone

Amplifier with Selectable Capacitive Coupled or OCL Output

Check for Samples: LM4911, LM4911Q

FEATURES

KEY SPECIFICATIONS

•

OCL or Capacitively Coupled Outputs (Patent

Pending)

•

PSRR at 217Hz and 1kHz 65 dB (typ)

Output Power at 1kHz with V_DD= 2.4V,

•

External Gain-Setting Capability

1% THD+N into a 16Ω Load 25 mW (typ)

Available in Space-Saving VSSOP and WSON

Packages

•

Output Power at 1kHz with V_DD= 3V,

1% THD+N into a 16Ω Load 40 mW (typ)

•

Ultra Low Current Shutdown Mode

•

Shutdown Current 2.0 µA (max)

Mute Mode Allows Fast Turn-on (1ms) with

Less Than 1mV Change on Outputs

Output Voltage Change on Release from

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

mV (max)

•

2V - 5.5V Operation

Ultra Low Noise

•

Mute Current 100 µA (max)

LM4911QMM is an Automotive Grade Product

that is AEC-Q100 Grade 2 Qualified.

DESCRIPTION

The LM4911/LM4911Q 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.

APPLICATIONS

•

Portable CD Players

PDAs

Portable Electronics Devices

Automotive

Boomer audio power amplifiers were designed

specifically to provide high quality output power with a

minimal amount of external components. Since the

LM4911/LM4911Q does not require bootstrap

capacitors or snubber networks, it is optimally suited

for low-power portable systems. In addition, the

LM4911/LM4911Q may be configured for either

single-ended capacitively coupled outputs or for OCL

outputs (patent pending).

Block Diagram

Figure 1. Block Diagram

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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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

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