TFA9874AUK/N1Z

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TFA9874AUK/N1Z Application Field and Working Principle

The TFA9874AUK/N1Z is a high-performance, low-cost linear amplifier of the Audio family, designed for the consumer audio market. It is a versatile amplifier and ideal for a wide range of consumer applications, including amplifiers for radio and home entertainment systems, DVD players, music players, mobile handsets, communication headsets, and portable audio systems. Its main features include high efficiency with low power consumption, high signal-to-noise ratio, low THD, and low distortion.

The TFA9874AUK/N1Z is equipped with an integrated differential input driver stage to ensure low-noise operation and reduce system complexity. This amplifier provides a single-ended output of 2.3W and a differential output of 5.2W into an 8Ω load. Its quiescent current can be adjusted from 7 to 8mA. Overall, this amplifier offers high performance and cost efficiency.

Working Principle

The TFA9874AUK/N1Z audio amplifier works on the principle of linear amplification, which involves the amplification of an incoming signal without the introduction of any distortion. Linear amplification is accomplished by an amplifying device and is ultimately determined by the relationship between input and output voltages. In the case of the TFA9874AUK/N1Z, input and output are controlled using a differential input/output stage.

The input stage consists of a pair of transistors, with one acting as a differential pair and the other acting as a source follower. The transistors regulate the input and output voltages. The input stage also acts to reduce noise and unwanted distortion, resulting in improved sound quality. The output stage consists of two power transistors, with the primary one delivering the output power and the secondary acting as an active current source.

The output stage is fed from an internal current source, which supplies power to the two power transistors. Through the combination of transistors, resistors, and capacitors, the current source supplies the power required to drive the output stage. The transistors in the output stage amplify the differential input/output signals to provide the amplified output.

The TFA9874AUK/N1Z also includes a set of active adaptive biasing circuitry. This circuitry helps to increase the dynamic range of the amplifier and reduce thermal distortion. The active biasing also reduces the quiescent current consumption of the amplifier, resulting in improved efficiency.

Conclusion

The TFA9874AUK/N1Z is a high-performance, cost-efficient linear amplifier of the Audio family. It is ideal for a wide range of consumer applications, including Radio and Home Entertainment Systems, DVD Players, Music Players, Mobile Handsets, Communication Headsets, and Portable Audio Systems. Its main features include high efficiency, low power consumption, high signal-to-noise ratio, low THD, and low distortion. The audio amplifier works on the principle of linear amplification, requiring a differential input/output stage and an active adaptive biasing circuitry. Overall, this amplifier offers a high-quality audio experience, good efficiency, and cost-effectiveness.

The specific data is subject to PDF, and the above content is for reference