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TFA9887 - Audio system

General Description

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.

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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TFA9887 Audio system with adaptive sound maximizer and speaker protection Rev. 1 — 11 July 2012 Product short data sheet 1. General description 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 W. The integrated intelligent DC-to-DC converter allows the system to deliver this power from a battery voltage of 3.6 V. The audio input interface is I2S and the control settings are communicated via an I2C-bus interface. The TFA9887 guarantees safe speaker operation under all operating conditions.