AN17823A

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The AN17823A is a monolithic linear IC, specifically designed for the audio industry. This device features low distortion, low noise, and low power consumption while providing maximum flexibility. It is a multi-purpose audio amplifier designed to provide a wide range of outputs, enabling designers to easily integrate it into their audio systems.

The AN17823A is intended for use in a wide range of audio applications. It can be used as a headphone amplifier, a preamplifier, a power amplifier, a direct-coupled amplifier, an av amplifier, an output stage for PCBs or any other audio system that requires a low cost and high power amplifier. The audio amplifier features an adjustable current-feedback topology, which is ideal for applications such as noise-cancelling headphones, high power audio systems, and voice-over-IP teleconferencing systems.

The AN17823A has an output power of up to 1.75 watts, which is enough for most audio applications. The device is operated at a working voltage of between 4.5 and 10V, and can provide up to 24V in peak-to-peak voltage. It has a wide 0.01 to 18 kHz frequency response and a distortion level of less than 0.5%. In addition, the device has low noise and high input impedance, making it suitable for applications such as hearing aids, which need to amplify very low signals.

The AN17823A is designed to operate in a wide range of temperatures, and it has an overload protection circuit to protect the internal circuit from excessive temperature and overload. The thermal overload protection circuit turns off the amplifier when it is exposed to temperatures above 130°C.

The AN17823A features an adjustable current feedback topology, which is highly efficient and has low power consumption. The current feedback allows for precise and simple control of the output current and of the overall signal amplitude without the need for large and expensive closed loop control systems. The AN17823A has two output stages, one for high-power and the other for low-power. The high-power output stage provides up to 400 mA of output current, and the low-power output stage provides up to 20 mA. Both output stages can be controlled through the AN17823A\'s programmable gain adjustment, allowing the user to easily adjust the sound quality.

The AN17823A provides a wide range of protection, including short circuit protection, thermal shutdown, overcurrent protection and overvoltage protection. The thermal shutdown circuit turns the amplifier off when it is exposed to temperatures above 130°C, and the overvoltage protection circuit reduces the output voltage if the output is exceeding the programmed limit.

In summary, the AN17823A is a high-performance, low cost, and low power audio amplifier. It features low distortion, low noise, and low power consumption, making it ideal for a wide range of audio applications. Its adjustable current feedback topology enables precise control of the signal amplitude without the need for complex closed loop control systems. The device is protected by a wide range of features, including short circuit protection, overcurrent protection, thermal shutdown and overvoltage protection.

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