B39871B4316P810

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Surface acoustic wave (SAW) filters are a type of signal-processing filter that employsurface acoustic wave technology to select specific frequencies from a signal. This isaccomplished by introducing an acoustic waveform onto the surface of a substrate mediumand using the mechanical properties of the waveform to separate desired frequencies fromundesired signals. B39871B4316P810 is a SAw Filter device made by the industry leader EPCOS. It was designed for applications requiring high frequency signal processing, such as mobilecommunication modems and Bluetooth headsets.

The B39871B4316P810 SAW filter is a double-pole, single-throw (DPST) device with a center frequency of 3.4GHz. It is rated at 40 dB rejection and 50 dB return loss. It has a maximum insertionloss of 1.7 dB in a 50-ohm impedance format. The operating temperature range of -20°C to +85°C, and it is housed in a miniature surface mount package with a PCB footpaway of just 4.3mm x 3.2mm. It is designed to be used with EPCOS\' SAW quadflex filters.

The working principle of the B39871B4316P810 SAw filter is based on the principles of surface acoustic wave technology. Surface acoustic waves are generated on the surface of asolid material by energizing an interdigital transducer (IDT) with an electrical signal. The IDT contains two closely spaced sets of crossed metal lines that are alternately energized.This creates a standing wave of energy at specific frequency that is reflected back and forth between the two sets of crossed lines. The frequency of the standing wave corresponds to the input signal. The frequency of the standing wave can then be filtered or selected using a series of reflective elements (e.g. reflectors, resonators, etc.) on the surface of the substrate.

The B39871B4316P810 SAW filter can be applied for a variety of applications, includingbase stations, mobile communications devices, GPS receivers, Bluetooth headsets, andany other system requiring filtering of high frequency signals. It is particularlywell suited for applications where a small form factor, high rejection, and low insertion loss are desired.

In summary, the B39871B4316P810 SAW filter is a compact and highly reliable device designed for high frequency signal filtering applications. It is based on surface acousticwave technology and utilizes an interdigital transducer to generate and filter a standing waveform. It provides a maximum insertion loss of 1.7 dB in a 50-Ohm impedance format,and is rated at 40 dB rejection and 50 dB return loss. The B39871B4316P810 is suitable for use in mobile communication devices, Bluetooth headsets, base stations and other systems requiring high frequency signal filtering.

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