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LM4863 的PDF资料 下载 ,523714K

LM4863 的货源和报价 LM4863 的相关技术信息

相关型号

LM4766T lm4811 LM4819 LM4861 LM4871 LM4880 LM4890 LM500

LM4863 - Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Features

•	Stereo headphone amplifier mode
•	"Click and pop" suppression circuitry
•	Unity-gain stable
•	Thermal shutdown protection circuitry
•	SOIC, TSSOP, exposed-DAP TSSOP, and LLP packages
* Not recommended for new designs. Contact NSC Audio Marketing.

Key Specification

PO at 1% THD+N

LM4863LQ, 3, 4 loads

2.5W(typ), 2.2W(typ)

LM4863MTE, 3, 4 loads

2.5W(typ), 2.2W(typ)

LM4863MTE, 8 load

1.1W(typ)

LM4863, 8

1.1W(typ)

Single-ended mode THD+N at 75mW into 32

0.5%(max)

Shutdown current

0.7µA(typ)

Supply voltage range

2.0V to 5.5V

General Description

The LM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4 load or 2.5W to a 3 load with less than 1.0% THD+N. More...

Applications

•	Multimedia monitors
•	Portable and desktop computers
•	Portable televisions

General Description

The LM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4 load or 2.5W to a 3 load with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones.

Boomer audio power amplifiers were designed specifically to provide high quality output power from a surface mount package while requiring few external components. To simplify audio system design, the LM4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.

The LM4863 features an externally controlled, low-power consumption shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to reduce "clicks and pops" during device turn-on.