ALM-31222-TR1G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Frequency:	1.7GHz ~ 2.7GHz
P1dB:	31.5dBm
Gain:	14.9dB
Noise Figure:	2.7dB
RF Type:	GSM, PCS, W-CDMA, WiMAX
Voltage - Supply:	5V
Current - Supply:	415mA
Test Frequency:	2GHz
Package / Case:	22-SMD Module, No Lead
Supplier Device Package:	22-MCOB (5x6)

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RF Amplifiers: ALM-31222-TR1G Application Field and Working Principle

The ALM-31222-TR1G is an ultra low noise amplifier that operates in the frequency ranges between 30-3000 MHz and 2-3000 MHz. It is designed for use in RF amplifiers, with a wide range of application fields such as telecommunications, aerospace and defense. The ALM-31222-TR1G is an amplifier designed for low-power applications and possesses an extremely low noise figure (NF) of 1.2dB.

Application Field

The ALM-31222-TR1G is a high performance amplifier designed for multiple industries. It is well suited for use in telecommunications applications, as its wide frequency range between 30-3000 MHz and 2-3000 MHz makes it suitable for use in both cellular and satellite applications. It is also suitable for use in aerospace and defense applications, due to its low noise figure and its robust design.

Working Principle

The ALM-31222-TR1G amplifier works on an active X-Y switching circuit, where the X-Y switching circuit consists of two matched transistors functioning together in an alternating current (AC) configuration. The transistors alternately switch the load between two transistors at a given frequency. This causes the alternating current to flow through both the transistors, thus delivering a higher power output.The ALM-31222-TR1G\'s active circuitry amplifies the input signal and doubles the power gain and output power of the amplifier. The amplifier\'s wide frequency range makes it suitable for applications in both the HF and VHF frequency ranges. It also features an integrated phase detector which ensures high accuracy and distortion-free operation.

Features

The ALM-31222-TR1G is a feature rich amplifier with multiple features designed to make it easier to use. It is designed with reverse polarity protection to prevent damage from static and transient voltages. The amplifier is designed to have a power save feature, which turns off the power supply and allows for lower power consumption when the amplifier is not in use.The ALM-31222-TR1G also features short circuit protection, thermal protection, integrated EMI filter, and bias loop stabilization for easy operation. It comes with integrated input/output power detector, along with output power control ranging from -25dBm to +10.2dBm. The amplifier is also available with optional PAD attenuator to control the gain of the device.

Advantages

The ALM-31222-TR1G amplifier offers several advantages, including high power gain of 17dB and a noise figure of 1.2dB. Its frequency range of 30-3000MHz and 2-3000MHz makes it suitable for a range of applications in the telecommunications industry. It also features an integrated phase detector and reverse polarity protection, ensuring high accuracy when the amplifier is in use. The amplifier also features an integrated EMI filter, which helps reduce interference from other RF devices or transmissions. Finally, it has a wide gain control range of -25dBm to +10.2dBm and can be equipped with a PAD attenuator for even finer gain control.

Conclusion

The ALM-31222-TR1G is an ultra low noise amplifier that operates in both the HF and VHF frequency ranges. It is suitable for both telecommunications and aerospace and defense applications, and features an integrated phase detector and reverse polarity protection for high accuracy operation. It also has a wide range of gain control and a low noise figure, making it suitable for low-power applications. Finally, its integrated EMI filter reduces interference from other transmissions.

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