SE2431L-R RF/IF and RFID

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The SE2431L-R is a high-performance RF front end module (FEM) which operates in the 860 to 960MHz frequency range with an input range of 2 to 10dBm and a dynamic power range of 36 dB. It is a cost-effective solution for wireless applications, providing a low Noise Figure (NF) of 1.42dB, low harmonic distortion, excellent Out-of-Band rejection, and high linearity. The SE2431L-R combines a Low Noise Amplifier (LNA) and a Power Amplifier (PA) in a single package, resulting in improved performance and lower cost. It is designed for both fixed and mobile applications.

The SE2431L-R’s LNA has a high gain of 23.5dB, low noise figure of 1.42dB, and excellent linearity of +30dBm IIP3. The low noise figure provides superior sensitivities for wireless applications. The Amplifier stage of the SE2431L-R includes a highly efficient power amplifier that delivers a high power output of +23dBm, good linearity, and low distortion. The on-chip power control loop ensures stability, and linearity. The module also has integrated switches which allow for maximum flexibility during the design process.

The SE2431L-R has a total current consumption of only 465 mA (active mode) and uses a single voltage supply of 5V. The module has an operating temperature range of -30 to +85 degrees Celsius with good temperature stability, making it suitable for various outdoor applications. The SE2431L-R is designed for applications such as wireless local area networks, automotive, consumer electronics, and remote sensing.

The overall working principle of the SE2431L-R is fairly simple. The input signal is first amplified by the low-noise amplifier. The amplified signal is then filtered to remove any out-of-band signals and to improve the overall signal quality. The filtered signal is then fed to the power amplifier where it is amplified further. Finally, the amplified signal is fed to an antenna for transmission. The power control loop ensures dynamic power output control and linearity. The SE2431L-R is suitable for various applications due to its high performance and reasonable cost.

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