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AMMC-6222-W10: RF Amplifiers Application Fields and Working Principles

AMMC-6222-W10 is an RF Amplifier developed by Anadigic Corporation, which focuses on the research and development of medium power amplifier components. This RF amplifier provides improved reliability and signal performance in a wide range of applications where size and power consumption are important. It is optimized for the linearization of bursting applications including wide-angle ranges from near field to mid-band frequency ranges.

Application Field

AMMC-6222-W10 is optimized for linear applications and is suitable for wireless applications such as base stations, in-vehicle systems, and satellites. It is also suitable for worldwide public safety application which needs highly reliable transmission reliability. The linearization of the amplifier helps to prevent adjacent-channel interference and to maintain the signal quality in bursted applications. In addition, this amplifier is also suitable for handset applications and Point-to-Point (P2P) links with high gain with good linearity.

Features

AMMC-6222-W10 is made of integrated and matched antennas and has a dual-gate pHEMT FET. The wide-angle frequency range from near field to mid-band frequency range is supported. This amplifier also features adjustable bias control and reverse gate voltage option for-fine tuning the impedance matching and gain control. The amplifier is suitable for use with a TTL control signal or DC control voltage. Moreover, an integrated SP2T thermal switch provides improved reliability with thermal shutdown protection.

Working Principle

The working principle of the AMMC-6222-W10 involves the use of two pHEMT FET transistors. These two transistors are configured as a voltage-variable gain block, where the gain is determined by the drain-source voltage of the last transistor. This circuit also incorporates a temperature compensation circuit, which helps to minimize the bias shift that occurs with temperature changes. The amplifier features a bias control pin to adjust the bias current of the transistors to set the desired gain.

In addition, this amplifier also features gate reverse voltage option for fine tuning the impedance matching and gain control. When the gate reverse voltage pin is provided a voltage, an additional impedance network is formed between the drain and gate, which can be tuned to adjust the gain. The amplifier also includes a low pass filter to suppress any wideband noise present in the input signal. The low pass filter minimizes the noise before the signal is amplified to reduce the signal distortion.

Conclusion

The AMMC-6222-W10 RF amplifier is a medium-power, high-reliability amplifier designed for linearization of bursting applications. It features wide-angle frequency range support from near field to mid-band frequencies. It also features adjustable bias control and reverse gate voltage option for fine tuning the impedance matching and gain control. Furthermore, the amplifier also includes an integrated SP2T thermal switch to improve reliability with thermal shutdown protection. All these features make the AMMC-6222-W10 amplifier suitable for a variety of RF applications.

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