SGA-3563

The SGA-3563 is a high dynamic range, high frequency RF amplifier designed to amplify signals in the 0.8 to 3.7 GHz frequency range. It is part of a family of Cascaded RF Amplifiers which also includes the AGC-3563 and DRF-3563. These amplifiers are capable of operating with high linearity with extremely low noise figures while offering high reliability and good temperature stability.

The SGA-3563 is designed for a wide range of applications including satellite up/down link, terrestrial VHF/UHF CATV, FM broadcast, video broadcasting, and cellular radio base stations. Additionally, it can be used for radar systems, communications systems, and test instrumentation. The amplifier features a programmable gain control (PGC) function, which can be used for adjusting the gain of the amplifier in a non-linear fashion, enabling its use in applications where a wide range of signal levels are encountered.

The SGA-3563 operates as a Cascaded RF Amplifier, a type of amplifier that combines two stages of amplification. The first stage is referred to as the pre-amplifier and consists of a pair of transistors connected in a feedback configuration. This stage provides a small gain and low-noise figure. The second stage is referred to as the power amplifier and consists of two power transistors connected to the pre-amplifier’s output. This stage provides a high gain and high power output. By combining these two stages, the SGA-3563 amplifier can provide a high gain, wide bandwidth, low-noise figures, and high input and output power levels.

The SGA-3563 also includes several protection features that help protect the amplifier from damage due to over-current, over-temperature, and reverse-polarity voltages. This allows the amplifier to be used in a variety of climates and operating conditions. Furthermore, the SGA-3563 is designed to allow for direct impedance matching to a wide range of loads, providing excellent efficiency and optimal power transfer.

In conclusion, the SGA-3563 is a high dynamic range, high frequency RF amplifier that is designed to amplify signals from 0.8 to 3.7 GHz. It is ideal for a variety of applications, including satellite up/down link, terrestrial VHF/UHF CATV, FM broadcast, video broadcasting, and cellular radio base stations. Additionally, it is capable of operating with high linearity with extremely low noise figures, excellent efficiency and optimal power transfer, and several protection features that help protect the amplifier from damage.