ft2145B amplifier equivalent, 3.2w class-d audio power amplifier.
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 el.
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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 i.
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