Part number:
LM48557
Manufacturer:
National Semiconductor
File Size:
644.68 KB
Description:
Ceramic speaker driver.
LM48557_NationalSemiconductor.pdf
Datasheet Details
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 L
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
LM48557_NationalSemiconductor.pdf
Datasheet Details
LM48557
National Semiconductor
644.68 KB
Ceramic speaker driver.
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