AS3430-EQFP

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AS3430-EQFP is a versatile linear amplifier designed specifically to support audio applications. It is designed to offer excellent power efficiency, low noise and high output power in a single integrated package. The device offers a wide range of features and benefits, including high input impedance, low distortion, low power consumption and high output power.

One of the main benefits of the AS3430-EQFP is its small size. It measures just 14 mm in length, 7.5 mm in width, and 2.2 mm in height. This makes it suitable for use in a range of applications, including automotive, portable audio and industrial audio. The device also features a high input voltage range of 0.8 V to 5 V and can support an output power of up to 4 W.

The AS3430-EQFP is designed to operate in two modes. In the first mode, the amplifier’s circuitry acts as a low-noise pre-amplifier providing the user with clear and consistent sound. In the second mode, the amplifier acts as an audio power amplifier providing an additional 10 dB of gain before the final output stage.

The working principle of the AS3430-EQFP is based on a voltage feedback loop architecture, which is a common design for audio amplifiers. It involves two cascaded amplifiers operating at different gains, with the feedback loop providing overall control of the output. The first amplifier, known as the voltage gain stage, amplifies the input signal before passing it on to the second amplifier, the voltage-to-current converter. This stage converts the amplified signal into current, ready for the third stage, the output driver.

The output driver amplifies the current generated by the previous stage and can supply up to 4W of power. It is also designed to maintain a low distortion level, even when driving high-impedance loads. Finally, the device is equipped with a slew-rate limiter, which helps to minimize distortion caused by over-driven audio signals.

The AS3430-EQFP is a highly integrated, low-power audio amplifier designed to provide excellent sound quality and performance in a small, cost-effective form factor. It is built on a monolithic integrated circuit, offering a variety of features, including high-input impedance, low distortion, high output power and low power consumption. With its wide range of features and benefits, the device is well suited for a range of audio applications, such as automotive and portable audio.

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