LM4928
www.ti.com SNAS330E – DECEMBER 2005 – REVISED APRIL 2013 LM4928 Boomer™ Audio Power Amplifier Series 1.2 Watt Stereo Fully Differential Audio
Amplifier with RF Suppression and Shutdown Low
Check for Samples: LM4928 FEATURES DESCRIPTION The LM4928 is an stereo fully differential stereo audio
power amplifier primarily designed for demanding
applications in mobile phones and other portable
communication devices. It is capable of delivering 1.2
watts of continuous average power to a 8Ω load with
less than 1% distortion (THD+N) from a 5VDC power
supply. 1 23 RF Suppression Circuitry
Fully Differential Amplification
Available in Space-Saving DSBGA and WSON
Packages
Ultra Low Current Shutdown Mode
Can Drive Capacitive Loads up to 100pF
Improved Pop & Click Circuitry Eliminates
Noises During Turn-On and Turn-Off
Transitions
2.4 -5.5V Operation
No Output Coupling Capacitors, Snubber
Networks or Bootstrap Capacitors Required APPLICATIONS Mobile Phones
PDAs
Portable Electronic Devices and Accessories KEY SPECIFICATIONS Improved PSRR at 217Hz, 90dB (Typ) …
