ALM-31122-BLKG

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RF amplifiers are components that amplify radio frequency (RF) signals. In electronic systems, they are used to increase the power of an RF signal. Amplifiers are necessary for systems such as radios and televisions, where the signal is too weak to be transmitted or to be heard via speakers. The ALM-31122-BLKG amplifier from AnalogicTech is a high power, high efficiency amplifier module designed for applications up to 3.0GHz.

The ALM-31122-BLKG is a 10-watt module operating from 200MHz up to 3.0GHz, delivering 10 dB of gain and up to 25% drain efficiency. The amplifier may be used in land mobile or base station radios, point-to-point and point-multipoint communications, public short-wave broadcasting, amateur radio, cellular phones, cordless communication systems and wireless networks. It features an input and an output power detector, which enables it to provide an output power control without external components.

The ALM-31122-BLKG is based on insulated gate bipolar transistor (IGBT) technology to achieve high efficiency and high power. It is built using a number of IGBTs and various circuit elements including a input and output matching network, input and output pads, ports for voltage and bias adjustment, and a power detector. The amplifier module also has a SMA coaxial connector, an on/off reset control and a shutdown control port. The amplifier module is housed in a small form factor package and has a low weight of only 2.7 ounces and the dimensions are (L) 0.24 × (W) 0.14 × (H) 0.06 inches.

The working principle of the ALM-31122-BLKG amplifier is simple. The incoming RF signal is first amplified by the preamplifier stage and then the power is increased further by the power amplifier stage to reach the output power level. The amplifier also includes a shutdown control port, so that the amplifier can be switched off when the RF signal is not required.

The ALM-31122-BLKG amplifier offers high power and high efficiency performance, making it suitable for a variety of high power applications. It has a wide operating frequency range from 200MHz up to 3.0GHz and provides 10 dB of gain with up to 25% drain efficiency. The amplifier housing is designed for easy integration and the small form factor package makes this amplifier very suitable for mobile applications. Thanks to the IGBT technology, the ALM-31122-BLKG amplifier can provide excellent thermal stability throughout its operation.

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