SGA-1263

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RF amplifiers are an essential component in most electronic systems, acting to amplify low frequency signals to create higher frequency signals and drive signal applications such as receivers and transmitters. The SGA-1263 RF amplifier is a device designed to meet a wide range of requirements in diverse searching, detection, tracking, and communication applications. Its features include wide bandwidth, high gain, and low-power consumption.

The SGA-1263 is a frequency-agile amplifier designed for operating frequencies from 30 MHz to 3 GHz. It is well-suited to a variety of RF applications, such as defense communications, avionics, cellular net­working, broadcasting, jamming, and digital modem applications.

The SGA-1263 amplifier achieves a voltage-gain of up to 125 dB while providing an output power of up to +5 dBm into a 50-ohm load. It operates off an unregulated 10 to 14 VDC source, and exhibits a +22 dBm third-order intercept point, with a typical low noise figure of 10 dB. With its variable gain feature and gain control voltage range of 0 to 13 VDC, the SGA-1263 can be linearized with ease over a wide frequency range.

The SGA-1263 amplifier’s power supply noise is typically below -50 dB. Its low-noise architecture maintains an RF noise figure below 10 dB throughout a wide range of frequencies, allowing it to be used as a preamplifier in applications requiring noise reduction or to achieve lower noise performance.

Due to its versatile, low-noise amplification capabilities, the SGA-1263 is an ideal choice for applications like multi-mode signal detection, RF and AM signal generation, wide dynamic range radars, communications modems, and up/down converters. Its high gain, low noise, wide frequency range, and low power requirements make it well-suited to a variety of modern RF systems.

The SGA-1263 also features bias current linearization, for improved linearity and reduced distortion, as well as a wide dynamic range of more than 70 dB for accurately amplifying signals that may have a range of power levels. The amplifier uses a bias current technique to maintain a power supply ripple of less than 3 mV and can produce a power efficiency of up to 50%.

The SGA-1263 operates in a wide range of operating temperatures, from -55°C to +125°C, depending on the operating environment and application requirements. It also features a low input power of -30 dBm for improved noise performance in sensitive applications. Its large power supply rejection ratio of 28 dB allows it to resist power supply noise and other power supply-induced distortions.

The SGA-1263 is equipped with a wideband input filter to reject out-of-band signals and improve performance. It also features a low input impedance, enabling it to be easily connected to other equipment. With its wide gain control voltage range and low power requirements, the SGA-1263 is an excellent choice for many RF applications.

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