LM4855

Name: LM4855
Brand: TI
SKU: LM4855
Price: 1.015 USD

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115mW 立体声、1.5W 单声道、模拟输入 AB 类音频放大器

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数据表

document-pdfAcrobat LM4855 Integrated Audio Amplifier System 数据表 (Rev. C) (英语)

LM4855

正在供货

数据表

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产品详情

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Operating temperature range (°C)

-40 to 85

WQFN (NHW)

24

20 mm² 5 x 4

1.1W (Typ) Output Power with 8Ω Mono BTL Load
115mW (Typ) Output Power with Stereo 32Ω BTL Loads
SPI Programmable 32 Step Digital Volume Control
Eight Distinct Output Modes
DSBGA and WQFN Surface Mount Packaging
"Click and Pop" Suppression Circuitry
Thermal Shutdown Protection
Low Shutdown Current (0.1uA, Typ)

Key Specifications

THD+N at 1kHz, 1.1W into 8Ω BTL: 1.0% (Typ)
THD+N at 1kHz, 115mW into 32Ω BTL: 0.5% (Typ)
Single Supply Operation: 2.6 to 5.0V

All trademarks are the property of their respective owners.

1.1W (Typ) Output Power with 8Ω Mono BTL Load
115mW (Typ) Output Power with Stereo 32Ω BTL Loads
SPI Programmable 32 Step Digital Volume Control
Eight Distinct Output Modes
DSBGA and WQFN Surface Mount Packaging
"Click and Pop" Suppression Circuitry
Thermal Shutdown Protection
Low Shutdown Current (0.1uA, Typ)

Key Specifications

THD+N at 1kHz, 1.1W into 8Ω BTL: 1.0% (Typ)
THD+N at 1kHz, 115mW into 32Ω BTL: 0.5% (Typ)
Single Supply Operation: 2.6 to 5.0V

All trademarks are the property of their respective owners.

The LM4855 is an audio power amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and 115mW (typ) per channel of continuous average power into stereo 32Ω BTL loads with 0.5% THD+N, using a 5V power supply.

The LM4855 features a 32 step digital volume control and eight distinct output modes. The digital volume control and output modes are programmed through a three-wire SPI serial control interface, that allows flexibility in routing and mixing audio channels.

The LM4855 is designed for cellular phone, PDA, and other portable handheld applications. It delivers high quality output power from a surface-mount package and requires only six external components.

The industry leading DSBGA package only utilizes 2mm x 2.3mm of PCB space, making the LM4855 the most space efficient audio sub system available today.

The LM4855 is an audio power amplifier system capable of delivering 1.1W (typ) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and 115mW (typ) per channel of continuous average power into stereo 32Ω BTL loads with 0.5% THD+N, using a 5V power supply.

The LM4855 features a 32 step digital volume control and eight distinct output modes. The digital volume control and output modes are programmed through a three-wire SPI serial control interface, that allows flexibility in routing and mixing audio channels.

The LM4855 is designed for cellular phone, PDA, and other portable handheld applications. It delivers high quality output power from a surface-mount package and requires only six external components.

The industry leading DSBGA package only utilizes 2mm x 2.3mm of PCB space, making the LM4855 the most space efficient audio sub system available today.

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