LA4425AN-D-E

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The LA4425AN-D-E is a type of linear audio amplifier device, designed to amplify the linear audio signals. It is capable of delivering up to +6dB of gain, with a wide frequency response of 20 Hz to 20 kHz, and a dynamic range of up to 60 dB. The device is based on a highly efficient complementary bipolar structure, making it ideal for a wide range of applications.

Application Fields

The LA4425AN-D-E is ideal for audio-related applications, as mentioned earlier. It is widely used in digital audio equipment, including car audio systems, portable audio players, professional audio systems, and home theater systems. It is also used in professional audio mixers, amplifying the low-level incoming audio signals.

The device is also used for professional video equipment, such as video cameras and video displays. It is also used in musical instruments such as keyboards, electric guitars, and drum machines.

The LA4425AN-D-E can also be used in other applications such as industrial cameras, medical equipment, telecommunications, and measuring instruments.

Working Principle

The LA4425AN-D-E is based on a highly efficient complementary bipolar architecture. It includes two input stages and two output stages, allowing it to produce the desired level of gain. The input stage consists of a differential pair of transistors, connected in parallel to form a differential amplifier. The differential amplifier amplifies the differential signals and sends them to the output stage. The output stage consists of two transistors connected in series and is used to output a larger signal level than the input.

The device also includes a relatively low output impedance, allowing it to drive a wide range of audio loads. The output is also capable of driving up to 6V RMS, with a low distortion levels.

The device is also designed with low noise operation in mind. It utilizes a low-noise biasing circuit, which helps reduce the noise floor and make sure that no unwanted noises are amplified by the device.

The LA4425AN-D-E is built with a high-speed response time and additional features to reduce the amount of noise and improve the overall linearity and stability of the device. It is designed to work with a wide range of audio signals, allowing it to produce very high fidelity audio.

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