SPF5043ZSQ

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RF Amplifiers

SPF5043ZSQ is an RF amplifier designed for general purpose, low-power, low-noise applications such as wireless and mobile radios and other communication systems.The amplifier is fabricated on a gallium arsenide (GaAs) process and offers excellent spurious-suppression performance along with high gain and low noise. Its excellent linearity reduces the need for input filters.

Application Field

The SPF5043ZSQ is used in a wide range of applications, including:

• Cellular Base Station Transmitters/Receivers
• Wireless LAN Transmitters/Receivers
• PMR/LMR Applications
• Mobile Radio Applications
• Military and Aerospace Communication Systems
• High-Power RF Amplifiers
• Short-Range Applications

The amplifier can also be used in medical, instrumentation, automotive, and industrial applications, such as CATV, ISM, satellite TV.

Working Principle

The SPF5043ZSQ is a four-stage RF amplifier operating in a Class A configuration. It provides an input impedance of 50 ohms, along with high gain and low noise figures. The amplifier offers a wide dynamic range of linearity, with a low distortion of less than 0.2%.

The amplifier is powered by a DC voltage of 7~12 Volts, with a current draw of 1.2 Amps. It operates within the frequency range of 5~500MHz and has a high rejection of out-of-band signals. The amplifier is constructed using a combination of thick and thin-film processes and uses an on-chip self-biasing network.

The amplifier is designed using a GaAs technology which provides excellent gain and linearity characteristics, as well as high reliability. It has a package size of 7mm x 7mm and is suitable for full surface-mount assembly. It is also well-suited for use in high-volume production.

The SPF5043ZSQ RF amplifier offers a high degree of linearity, which is essential for some applications such as wireless radio transmission. The amplifier provides low noise, low distortion and excellent suppression of out-of-band signals, making it an ideal solution for a wide range of applications in various communication systems.

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