Datasheet Summary
3.2W Class-D Audio Power Amplifier with Automatic Level Control
GENERAL DESCRIPTION
The ft2145B is a high-efficiency, filterless Class-D audio power amplifier with automatic level control (ALC). It operates from 2.7V to 5.5V supply. When powered with 5V supply voltage, the ft2145B is capable of delivering 3.2W into 4Ω load or 1.8W into 8Ω load with 10% THD+D.
The ft2145B Features
ALC on the audio output signals, which detects the output clipping caused by the over-level input signal and automatically adjusts the voltage gain of the amplifier to eliminate the clipping while maintaining the maximally-allowed dynamic range of the audio output signals. The ALC also eliminates the...