LTC5531ES6#TRMPBF RF/IF and RFID

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LTC5531ES6#TRMPBF is a RF Detectors madeby Linear Tech Corporation. This device provides low distortion mixer performance at high frequency, has low insertion loss and great return loss properties as well as a high level of image rejection and ultra-low noise interstage RF filters with direct EXTRACT/INTER POLATE conversion.

The application field of the LTC5531ES6#TRMPBF RF detectors covers cellular and PCS networks, such as GSM, IS-136, and PHS. Tools, equipments, systems, antennas, and other RF components as well as wireless systems and communications can also benefit from it.

Working Principle

The LTC5531ES6#TRMPBF has wideband 1 dB compression point (P1dB), it converts the input signal into an intermediate frequency (IF) signal with high power linearity and low distortion. Designed with direct EXTRACT/INTER POLATE conversion, the device incorporates a simple data recovery technique that tracks the input signal based on an IF feedback signal. A low noise amplifier is available to condition the input signal before it is passed to the internal mixer. The conversion rate varies from 2 to 75 MHz and can be set by an external capacitor and inductor. Input and output impedance are matched for efficient signal transfer but adjustable by an external resistor.

How it Works

LTC5531ES6#TRMPBF RF detectors use a two-phase, 90° lag, 90° lead technique to compress the input signal and produce IF output. The signal output is automatically limited with a 1.3 dB compression point. In this process, the signal is amplitude compressed before the mixer level due to the nonlinearities in the RF detector\'s passives components. These nonlinearities enable IF output evne when the input signal is near clipping level.

The LTC5531ES6#TRMPBF has a low noise amplifier which increases the signal level by 3dB max. It then directly drives the mixer with ample amount of signal. Its low insertion loss helps attenuate the input signal. The device also has a high level of image rejection, which helps reduce noise in the signal. It also provides low distortion mixer performance at high frequency, and has ultra-low noise interstage RF filters with direct EXTRACT/INTER POLATE conversion.

Conclusion

The LCT5531ES6#TRMPBF RF detector is designed to provide a high performance solution for cellular and PCS networks. It has a wideband 1 dB compression point (P1dB), low distortion mixer performance at high frequency, high level of image rejection, ultra-low noise interstage RF filters with direct EXTRACT/INTER POLATE conversion, and also helps reduce noise in the signal. Designers in need of a robust RF detector in their wireless system should consider the LTC5531ES6#TRMPBF RF Detectors.

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