LM48557

ACTIVO

Controlador de altavoz cerámico mono de entrada analógica, con control de volumen I2C y bomba de car

Detalles del producto

Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 4.5 Speaker channels (max) Mono Audio input type Analog Shutdown current (ISD) (µA) 0.01 PSRR (dB) 80 Iq (typ) (mA) 5 Operating temperature range (°C) to Rating Catalog
Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 4.5 Speaker channels (max) Mono Audio input type Analog Shutdown current (ISD) (µA) 0.01 PSRR (dB) 80 Iq (typ) (mA) 5 Operating temperature range (°C) to Rating Catalog
DSBGA (YPD) 16 5.0625 mm² 2.25 x 2.25 DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • Integrated Charge Pump
  • Bridge-Tied Load Output
  • Differential Input
  • High PSRR
  • I2C Volume and Mode Control
  • Reset Input
  • Advanced Click-and-Pop Suppression
  • Low Supply Current
  • Minimum External Components
  • Micro-Power Shutdown
  • Available in Space-Saving 16-Bump DSBGA Package

Key Specifications

  • Output Voltage at VDD = 4.2V
    • RL = 1µF +22Ω, THD+N ≤ 1%: 5.8 VRMS (Typ)

Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

  • Integrated Charge Pump
  • Bridge-Tied Load Output
  • Differential Input
  • High PSRR
  • I2C Volume and Mode Control
  • Reset Input
  • Advanced Click-and-Pop Suppression
  • Low Supply Current
  • Minimum External Components
  • Micro-Power Shutdown
  • Available in Space-Saving 16-Bump DSBGA Package

Key Specifications

  • Output Voltage at VDD = 4.2V
    • RL = 1µF +22Ω, THD+N ≤ 1%: 5.8 VRMS (Typ)

Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and portable media players, where board space is at a premium. The LM48557 charge pump allows the device to deliver 5.8VRMS from a single 4.2V supply.

The LM48557 features high power supply rejection ratio (PSRR), 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 4.5V. The LM48557 features an active low reset input that reverts the device to its default state. Additionally, the LM48557 features a 36-step I2C volume control and mute function. The low power Shutdown mode reduces supply current consumption to 0.01µA.

The LM48557’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48557 is available in an ultra-small 16-bump DSBGA package (1.965mm x 1.965mm).

The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and portable media players, where board space is at a premium. The LM48557 charge pump allows the device to deliver 5.8VRMS from a single 4.2V supply.

The LM48557 features high power supply rejection ratio (PSRR), 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 4.5V. The LM48557 features an active low reset input that reverts the device to its default state. Additionally, the LM48557 features a 36-step I2C volume control and mute function. The low power Shutdown mode reduces supply current consumption to 0.01µA.

The LM48557’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48557 is available in an ultra-small 16-bump DSBGA package (1.965mm x 1.965mm).

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Documentación técnica

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Tipo Título Fecha
* Data sheet Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control & Reset datasheet (Rev. D) 02 may 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

GUI para el módulo de evaluación (EVM)

SNAC003 LM48557 Evaluation Board Software Installation

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers/receptores para altavoces piezoeléctricos
LM48557 Controlador de altavoz cerámico mono de entrada analógica, con control de volumen I2C y bomba de car
Modelo de simulación

LM48557 PSpice Model

SNAM134.ZIP (24 KB) - PSpice Model
Modelo de simulación

LM48557 TINA-TI Reference Design

SNAM133.TSC (795 KB) - TINA-TI Reference Design
Modelo de simulación

LM48557 TINA-TI Spice Model

SNAM132.ZIP (5 KB) - TINA-TI Spice Model
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
DSBGA (YPD) 16 Ver opciones
DSBGA (YZR) 16 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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El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

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