AN17832A

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AN17832A is a audio amplifier integrated circuit (IC) belonging to the family of linear amplifiers. It has a power rating of up to 2W, a low noise figure and a high voltage gain up to 70dB. The AN17832A provides a high efficiency audio amplifier for applications like portable audio equipment, audio systems, and high-fidelity music systems.

Applications of AN17832A

The AN17832A is suitable for various audio applications. It is mainly used for power amplifiers in portable audio equipment like portable speakers, headphones, music players, mobile phones and notebooks. Other applications include car audio, small-scale audio systems, aerial photography, and A/V equipment. The IC consists of two independent gain blocks, one in each channel. This allows the IC to be used as a two-channel audio amplifier. It can also be used as a single-channel audio amplifier, with the channels being combined if desired. The AN17832A is particularly well suited to low-power applications where good sound quality and low noise are important.

Working Principle of AN17832A

The AN17832A IC operates with a single voltage supply ranging from 4.5V to 12V. It is designed to deliver an audio output of up to 2W with a high voltage gain of up to 70dB. Its supply current is only 5mA, which makes it an excellent choice for low-power portable applications. The IC is also capable of a low noise floor, with a noise figure of typically no more than 1dB below the maximum at all levels of input.

The AN17832A utilizes Bipolar Transistors and MOSFET devices as the output transistors. This allows the IC to achieve a much higher level of performance than conventional transistor-based audio amplifiers. The IC also uses integrated feedback circuitry to improve audio fidelity, reduce distortion, and increase the supply current.

The AN17832A is capable of driving a wide variety of speakers, including those with low impedance levels. It is also capable of driving a subwoofer, with a subwoofer gain of typically 20 to 30 dB being achievable. The output of the IC can be easily connected to external circuitry, such as filters or tone controls, to achieve a desired level of audio performance.

Conclusion

The AN17832A is an excellent audio amplifier integrated circuit belonging to the family of linear amplifiers. It is suitable for a wide range of audio applications, including portable audio equipment, car audio, small-scale audio systems, aerial photography and A/V equipment. The IC is capable of delivering a high performance audio output, with a high voltage gain of up to 70dB, a low noise figure and a supply current of just 5mA. Its integrated feedback circuitry further improves audio performance, reducing distortion and increasing the supply current. Therefore, the AN17832A is an ideal choice for powering high-fidelity audio systems.

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