SPA-1118

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The SPA-1118 is a low-current RF amplifier, specifically designed with a building block approach to create high-performance RF power amplifier designs. It is designed for professional RF amplifier development or RF customizations. It has advanced protection features, unique amplifier architectures, and high-power performance.The SPA-1118 is a high-performance RF amplifier module designed to provide up to 50 watts of RF power. It is suitable for use in a variety of applications including direct broadcast satellite (DBS) radio, navigation, and broadcasting systems.This module consists of two wide-band amplifier stages: a pre-amplifier stage and a power amplifier stage. The pre-amplifier stage is designed to amplify low level signals, while the power amplifier stage is designed to amplify high level signals. The pre-amplifier stage uses Surface Mount Technology (SMT) to minimize losses while the power amplifier stage uses Metal Oxide Semiconductor (MOS) devices to provide high gain and high efficiency.The SPA-1118 also includes three unique features, which are its active protection, analog gain control, and digital step attenuator. The active protection feature is designed to protect the amplifier from overvoltage and overcurrent protections. It also generates an alert signal if the outgoing power exceeds a predefined level. The analog gain control provides precise control of the gain of the amplifier and ensures low temperature coefficients. Digital step attenuator enables easy adjustment of the gain level.The SPA-1118 is designed to cover a wide frequency range; from 200MHz to 2700MHz. It has a low noise figure of 0.5 dB and high linearity of 34 dBm. It is also highly efficient and consumes low power. The SPA-1118 is 25 dBm linear in its operating range and is capable of delivering up to 50 watts of RF power. It also features adaptive linearization algorithms, which makes it suitable for use in multi-carrier environments.In terms of applications, the SPA-1118 is suitable for a wide range of applications, such as dual-polarization radio, backhaul, radio navigation, satellite communications, and broadcast radio services. It is also suitable for direct broadcast satellites (DBS) and mobile radio links.To sum up, the SPA-1118 is a high-performance, low-current RF amplifier module designed to provide up to 50 watts of RF power. It has advanced protection features, unique amplifier architectures, and high-power performance. It is suitable for a wide range of applications including DBS radio, navigation, and broadcasting systems.

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