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Part Number
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LM48557 |
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Manufacturer
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National Semiconductor |
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Description
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Ceramic Speaker Driver |
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Published
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Sep 11, 2009 |
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Detailed Description
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LM48557 Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset
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LM48557
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Datasheet
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LM48557
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Overview
LM48557 Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume Control and Reset
www.
DataSheet4U.
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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