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Audio, háptica y piezoeléctrica
Amplificadores de audio
Amplificadores de audio de uso general

LM4863

ACTIVO

Amplificador de audio mono de Clase AB, entrada analógica y 2.2 W con función de auriculares estéreo

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LM4863

ACTIVO
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Detalles del producto

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Control interface Hardware Output power (W) 2.7 THD + N at 1 kHz (%) 0.3 Load (min) (Ω) 3 Analog supply voltage (min) (V) 2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Control interface Hardware Output power (W) 2.7 THD + N at 1 kHz (%) 0.3 Load (min) (Ω) 3 Analog supply voltage (min) (V) 2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (NHW) 24 20 mm² (5 mm × 4 mm)
  • Stereo Headphone Amplifier Mode
  • “Click and Pop” Suppression Circuitry
  • Unity-Gain Stable
  • Thermal Shutdown Protection Circuitry
  • SOIC, TSSOP, exposed-DAP TSSOP, and WQFN packages

Key Specifications

  • PO at 1% THD+N
    • LM4863LQ, 3Ω, 4Ω loads: 2.5W(typ), 2.2W(typ)
    • LM4863MTE, 3Ω, 4Ω loads: 2.5W(typ), 2.2W(typ)
    • LM4863MTE, 8Ω load: 1.1W(typ)
    • LM4863, 8Ω: 1.1W(typ)
  • Single-ended mode THD+N at 75mW into 32Ω: 0.5%(max)
  • Shutdown current: 0.7μA(typ)
  • Supply voltage range: 2.0V to 5.5V

All trademarks are the property of their respective owners.

  • Stereo Headphone Amplifier Mode
  • “Click and Pop” Suppression Circuitry
  • Unity-Gain Stable
  • Thermal Shutdown Protection Circuitry
  • SOIC, TSSOP, exposed-DAP TSSOP, and WQFN packages

Key Specifications

  • PO at 1% THD+N
    • LM4863LQ, 3Ω, 4Ω loads: 2.5W(typ), 2.2W(typ)
    • LM4863MTE, 3Ω, 4Ω loads: 2.5W(typ), 2.2W(typ)
    • LM4863MTE, 8Ω load: 1.1W(typ)
    • LM4863, 8Ω: 1.1W(typ)
  • Single-ended mode THD+N at 75mW into 32Ω: 0.5%(max)
  • Shutdown current: 0.7μA(typ)
  • Supply voltage range: 2.0V to 5.5V

All trademarks are the property of their respective owners.

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

The LM4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4Ω load or 2.5W to a 3Ω load with less than 1.0% THD+N (see below). 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.
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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM4863   Dual 2.2W Audio Amplifier Plus Stereo Headphone Function datasheet (Rev. F) 2/05/2013

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