LM4855

ACTIVO

Amplificador de audio mono de Clase AB, entrada analógica, 1.5 W y 115 mW

Detalles del producto

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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Documentación técnica

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Tipo Título Fecha
* Data sheet LM4855 Integrated Audio Amplifier System datasheet (Rev. C) 01 may 2013

Diseño y desarrollo

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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Paquete Pasadores Descargar
WQFN (NHW) 24 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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