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LM48557

National Semiconductor
Part Number LM48557
Manufacturer National Semiconductor
Description Ceramic Speaker Driver
Published Sep 11, 2009
Detailed Description LM48557 Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset com LM48557 ...
Datasheet PDF File LM48557 PDF File

LM48557
LM48557

Overview
LM48557 Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset com LM48557 August 6, 2009 Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset General Description 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 condi...


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