TDA2822D013TR

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Application Field and Working Principle of TDA2822D013TR

The TDA2822D013TR is a dual low voltage power amplifier IC from STMicroelectronics\' product family, which belongs to Linear Amplifiers - Audio. This IC has been specially designed for battery operation such as hearing aids, radio and TV handhelds, personal music players, portable recorders, etc. It delivers high acoustic output power and comes with high power efficiency to save energy.

STMicroelectronics TDA2822D013TR Key Features

• Single Supply Voltage: 2V to 11V
• Operating Temperature Range: –40 °C to +85 °C
• Output Power: 32mW at 10V (into 8Ω at THD=1%), and up to 90 mW at 6V (into 8Ω at THD=10%) under the same conditions

Working Principle

The TDA2822D013TR is a dual low voltage power amplifier that features two separate amplifiers which work independently and offer the same performance. The two amplifiers work the same way but can be used in different applications and can be independently controlled. The IC utilizes the class AB architecture, meaning that it can draw current from the power supply even when it is not active and is capable of providing excellent output power performance while maintaining good power efficiency.

The working principle of the TDA2822D013TR is based on it having two common-emitter stages, where the upper one is biased in reverse to achieve low distortion and the lower one is operated in class B. This allows for a high power efficiency and a low input bias current. The two stages are connected back to back for increased output power and to improve the sound quality. The input is directly connected to the base of the upper transistor and the gain of the stages can be adjusted by connecting a resistor between the collector of the upper transistor and the output.

Applications

The TDA2822D013TR is a general-purpose dual power amplifier, suitable for various applications. It can be used in hearing aids, battery operated consumer electronics, portable recorders and audio systems, typewriters, telephone amplifiers, toys, radios and televisions, etc.

The TDA2822D013TR is capable of providing enough power to drive headphones, small loudspeakers and small microphones. It can be used in portable audio devices and can also be used to amplify weak signals, such as those coming from microphones. This IC can also be used for low-voltage applications, where the power efficiency is very important.

Conclusion

The TDA2822D013TR is an IC from STMicroelectronics\' product family which belongs to Linear-Amplifiers-Audio. It is a high power efficiency, dual low voltage power amplifier which is specially designed for battery operated devices and applications which demand high acoustic output power. The TDA2822D013TR is based on a class AB architecture and is capable of providing enough power to drive headphones and small loudspeakers. This IC can be used in various applications such as hearing aids, battery operated consumer electronics, portable recorders and audio systems, typewriters, etc.

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