B39202B7754C810 Filters

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Surface Acoustic Wave (SAW) filters are components widely used to amplify, frequency-select, or center the frequency of a given signal. The B39202B7754C810 is a SAW filter that has been developed for use in mobile telecommunications, wireless communication, television, and radio equipment. In this article, we will look at the application field and working principle of the B39202B7754C810.

The B39202B7754C810 SAW filter has been designed to be used as part of the signal channel for two-way communication systems. It can be used in a variety of situations, including in base stations, repeaters, and mobile radio. It can also be used with digital signal processing (DSP) systems. The B39202B7754C810 has a center frequency of 27 MHz with passbands of 22 MHz and 30 MHz, a stop band between 18 MHz and 22 MHz, and an attenuation of over 40 dB in the stop bands. It has a maximum insertion loss of less than 5 dB, excellent linearity, and high selectivity.

The B39202B7754C810 is designed to work with an array of interdigital transducers (IDTs) and reflecting electrodes. The IDTs are arrays of conductors, typically gold or aluminum, that are formed into a repeating pattern on a substrate. The reflecting electrodes are made of metal and are placed around the IDTs to serve as boundary layers. The IDTs are then connected to the electric field generator, which creates an electrical field that causes the transducers to vibrate. These vibrations create a surface acoustic wave that travels between the IDTs and the reflecting electrodes.

The surface acoustic wave (SAW) generated by the IDTs and reflecting electrodes is then filtered by the B39202B7754C810. The filter consists of an array of reflective capacitors or ferroelectric capacitors that are embedded in the surface of the substrate. The capacitors act as frequency-selective elements, allowing only the desired frequencies to pass, while attenuating any undesired frequencies. The reflected signal then travels back through the IDTs and reflecting electrodes, and it is free of any interfering frequencies.

The B39202B7754C810 is corrosion-resistant and capable of withstanding temperatures ranging from -40°C to +120°C, as well as shock and vibration. It is ideal for use in mobile telecommunications, wireless communication, television, and radio equipment. The device is available in a 10- or 12-pin surface-mounted package and is RoHS compliant, making it an excellent choice for use in modern communications systems.

In summary, the B39202B7754C810 is a surface acoustic wave (SAW) filter designed for use in a range of wireless communication systems. It is capable of filtering out unwanted frequencies, providing excellent linearity, high selectivity, and low insertion loss. The B39202B7754C810 is an ideal choice for many applications, including those requiring high levels of vibration and shock resistance and a wide operating temperature range. It is available in a 10- or 12-pin surface-mounted package, making it a convenient and reliable choice for use in many types of modern communication systems.

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