ft2725

ft2725 2X11W Stereo Class-D Audio Power Amplifier with ALC & DRC GENERAL DESCRIPTION FEATURES The ft2725 is a highly efficient 2X11W stereo Class-D audio power amplifier with automatic level control (ALC) and dynamic range compression (DRC). It operates with a wide range of supply voltages from 3.7V to 9V. When powered with 9V supply voltage, the ft2725 is capable of delivering 11W per channel into a pair of 4Ω speakers in a bridge-tied-load (BTL) configuration, or 15W into a single 3Ω speaker in parallel BTL (PBTL) configuration, with 10% THD+N. The ft2725 features ALC with an adjustable threshold for dynamic range control (DRC). The ALC constantly monitors and safeguards the audio outputs against a user-defined threshold voltage, preventing output clipping distortion, excessive power dissipation, or hazardous speaker over-load. Once an over-level condition is detected, the ALC lowers the voltage gain of the audio amplifiers proportionally to eliminate output clipping while maint...