ABA-31563-BLKG

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RF Amplifiers

An RF amplifier is an electronic amplifier designed to amplify signals in the radio frequency range (up to several GHz). The ABA-31563-BLKG is a broadband RF amplifier developed for applications in the 400 to 18000 MHz range. It is a complete GaAs monolithic integrated circuit amplifier, providing 6.5 dB of gain and high linearity.

Application Field

The ABA-31563-BLKG is primarily intended for use in base station amplifiers and modules for various wireless communication systems. This amplifier can be used in the different frequency bands, including UHF-band systems, CDMA systems, terrestrial digital broadcasting, wireless LAN systems, and ultra-wideband systems.

However, the amplifier has a wide range of applications and can be used for many more purposes, such as broadcasting equipment, navigation systems, radar, and test and measurement equipment.

Working Principle

The ABA-31563-BLKG is a monolithic amplifier with two stages fabricated in one device. The first stage is a low noise amplifier (LNA), and the second stage is an amplifier with high gain. The amplifier uses a GaAs mHEMT process with low noise and high efficiency signal paths.

The amplifier has a high linearity gain control circuit which combines a constant-current supply with a voltage-controlled bias and transconductance adjustment (VA–TCA). This allows the amplifier to maintain a high dynamic range with minimal distortion. In addition, the amplifier has an integrated power limiter circuit that protects it from overload and helps ensure linear operation.

The amplifier is powered by two independent power supplies, the positive and negative supplies. It operates at 5 volts and can deliver up to 30 mA of current, allowing it to handle up to 10W of input power. The amplifier has a wide range of gain controls, allowing the user to fine-tune the gain values for different applications.

Conclusion

The ABA-31563-BLKG is a high-performance, low-noise, high linearity RF amplifier which can be used for a wide variety of applications, including base station amplifiers, broadcasting equipment, navigation systems, radar and test and measurement equipment. The amplifier features a high gain and linearity gain control circuit with two independent power supplies for maximum performance and stability. The power limiter circuit ensures linear operation even when the amplifier is subjected to high input power, making the ABA-31563-BLKG the ideal solution for many RF applications.

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