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About This Video
Housed in a small, cost-efficient wafer-level chip-scale package, this complete audio system includes an embedded DSP (running advanced algorithms for speaker boost and protection), a high-efficiency 2.65 W Class-D audio amplifier, and an intelligent DC-to-DC converter.
The TFA9887 lets the speaker reach its full potential. It measures speaker behavior in real time and uses a sophisticated embedded algorithm to maximize the audio signal. It provides accurate measurements of voice-coil temperature, membrane excursion, and amplifier clipping.
The algorithm also monitors the integrated DC-to-DC converter to ensure the best sound quality even when the battery is near the end of its charge. Direct control of the speaker excursion allows improved bass reproduction (of music and speech). The real-time feedback lets the solution adapt to changes in the acoustic environment. The system adjusts and protects the speaker even when the back volume becomes leaky or the speaker port is blocked, resulting in higher sound quality, and a longer lifetime.