LM48557 Ceramic Speaker Driver

National Semiconductor

Description

LM48557 Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset www.DataSheet4U.com LM48557 August 6, 2009 Mono, Bridge-T.
The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and po.

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Datasheet Specifications

Part number: LM48557
Manufacturer: National Semiconductor
File Size: 644.68 KB
Datasheet: LM48557_NationalSemiconductor.pdf
Description: Ceramic Speaker Driver

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

Applications

* Mobile phones PDAs Notebook Electronic Devices MP3 Players Boomer® is a registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation 300981 www. national. com LM48557 www. DataSheet4U. com Typical Application 30098103 FIGURE 1. Ty

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LM48557 Ceramic Speaker Driver National Semiconductor

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