DESCRIPTION

· The IS31AP2145A is a [email protected] mono, clip-less, filter-less, high efficiency Class-D audio power amplifier with automatic gain control.
· It integrates AGC function to prevent audio signal distortion, enhancing audio quality and protecting speakers at high power levels.
· Features include thermal and over current protection, 90% high efficiency, improved RF-rectification immunity, fast start-up time, and a compact 1.5mm×1.5mm UTQFN-9 package.

FEATURES

· Filter-less Class-D architecture
· AGC enable/disable function
· 2.9W into 4 Ω at 5.0V (10% THD+N)
· Power supply range: 2.7V to 5.5V
· Selectable attack and release times
· High efficiency: 90%
· Click-and-pop suppression
· Low shutdown current: 0.1 μA
· Short-circuit and thermal protection
· Compact UTQFN-9, 1.5mm × 1.5mm package

APPLICATIONS

· Wireless or cellular handsets and PDAs
· Portable navigation devices
· Portable DVD players
· Notebook PCs
· Educational toys
· USB speakers
· Portable gaming devices