Datasheet Texas Instruments LM48557UR/NOPB — 数据表

LM48557
www.ti.com SNAS486D – JULY 2009 – REVISED MAY 2013 LM48557 Boomer™ Mono, Bridge-Tied Load, Ceramic Speaker Driver with I2C Volume
Control and Reset
Check for Samples: LM48557 FEATURES 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. 1 23 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 APPLICATIONS Mobile Phones
PDAs
Notebook Electronic Devices
MP3 Players The LM48557 features high power supply rejection …