FSA8058UMX Integrated Circuits (ICs)

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The FSA8058UMX audio special purpose is a road application device, a GaAs HG-FET which is a HBT based on monolithic integration technology. It is developed for many automotive audio applications, such as audio input signal signal amplification, signal noise reduction and high impedance input drive.

FSA8058UMX is a low-power, high-linearity RF / microwave amplifier designed for applications in the radio communication circuits, such as FM transmitters, cell phones, wireless speakers, and IoT devices. The device is based on a monolithic GaAs HBT process, providing high linearity and excellent gain control capability without adding large DC power consumption. It has low current consumption for the maximum gain set by gate bias, and the dynamic frequency range can be adjusted easily by setting the transconductance. The device also provides an SMA video output, allowing real-time monitoring of inputs and outputs.

The working principle of FSA8058UMX is that it can perform linear amplification of audio signals over a selected frequency range with low distortion, high gain, and wide dynamic range. The device has two primary components: a transistor and a voltage controlled amplifiers (VCA). The transistor amplifies the input signal, boosting its amplitude and improving its SNR. The VCA further amplifies the amplified signal and controls its level in order to provide an output signal with a predetermined level. In addition, the device includes a bias generator that sets the output gain of the device.

FSA8058UMX is ideal for the automotive audio industry, providing high linearity and gain control while consuming very low power. It can be utilized as a direct replacement for existing audio transistors, significantly reducing the power consumption in audio applications. The device also offers a wide gain optimization range – allowing engineers to tailor its output to their application\'s specific needs. With its high bandwidth, excellent linearity, and ultra-low power consumption, this device is suitable for any application that requires sensitive, precise audio amplification.

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