TFA9887 Overview
The TFA9887 is an audio system consisting of a high efficiency class-D audio amplifier, and embedded DSP with a sophisticated speaker-boost and protection algorithm and an intelligent DC-to-DC converter. It can safely deliver 2.65 W (RMS; THD = 1 %) output power into a 4 speaker that is nominally only rated for 0.5.
TFA9887 Key Features
- Sophisticated speaker-boost and protection algorithm that maximizes speaker performance while protecting the speaker
- Fully embedded software, no additional license fee or porting required
- Total integrated solution that includes DSP, amplifier, DC-to-DC, sensing and more
- Adaptive excursion control
- guarantees that the speaker membrane excursion never exceeds its rated limit
- Real-time temperature protection
- direct measurement ensures that voice coil temperature never exceeds its rated limit
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- Environmentally aware
- automatically adapts speaker parameters to acoustic and thermal changes including pensation for speaker-box leakage