DEMO: Boost Micro Speaker Sound with TFA9887 Mobile Audio System from NXP

The TFA9887 lets the speaker reach its full potential. It measures speaker behaviour 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.

The TFA9887 is available in a WLCSP29 package (3.19 x 2.07 x 0.6 mm), under the order number TFA9887UK.