TFA9882UK/N1,023 Integrated Circuits (ICs)

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The TFA9882UK/N1 is a part of the Linear - Amplifiers - Audio range and is a 3 W class-D audio power amplifier. It is optimized to drive speaker loads down to 4 Ω, making it ideal for use in portable media devices. It is a highly integrated device which minimizes external components and provides ease of use. Its integrated power-on detector can be used to adjust gain and turn on/off the amplifier, while its audio output protection protects systems against large output spikes.

The TFA9882UK/N1 provides an operation range between 5 V and 30 V, with a quiescent current of 13 mA. Furthermore, its thermal shutdown ensures it is thermally protected from excessive heat. Its two gain settings, 6 dB and 15 dB, allow extra boost for small speakers, resulting in improved music quality. Moreover, it has 16 mW low harmonic distortion which is suitable for low-noise applications.

The working principle of the TFA9882UK/N1 is based on the Class D operation of an audio power amplifier. In this type of operation, the input signal is sent to an integrated pulse width modulation (PWM) converter, which produces a set of output audio pulses with their amplitude varying according to the input signal. This sequence of pulses is then sent to an output stage, which produces the output signal, amplified with respect to the input. At the same time, the power stage feedback loop ensures the output is compliant to the input, while the integrated power-on detector prevents any false start.

The TFA9882UK/N1 has many applications in audio devices including portable systems, small speakers, and low-noise applications. It is suitable for use with full-range speaker systems or multiple speakers, with its two gain options 6 dB and 15 dB providing extra boost for boosting small speakers. Additionally, it is ideal for use in portable multimedia devices such as bluetooth speakers, tablets, and portable media players.

The TFA9882UK/N1 Class D audio power amplifier provides an excellent solution for audio amplification in portable multimedia devices. It provides high performance with an operation range from 5 V to 30 V and up to 3 W stereo output power. It also has a low quiescent current and two gain options, making it suitable for both small space applications and low-noise applications. Furthermore, the integrated power-on detector and thermal shutdown of the device provide safety and makes it easy to use.

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