B39172B5125U410

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SAW Filters refer to surface acoustic wave filters, and refer to an electronic device comprising a piezoelectric substrate with an interdigital transducer (IDT) integrated on them. SAW filters are widely used in communication systems due to their outstanding filtering characteristics, such as low noise, high dynamic range, high order of selectivity, small size and wide frequency range. The B39172B5125U410 SAW filter is also a surface acoustic wave filter and is designed for use in 2G/3G/4G mobile communications.

Application Field: The B39172B5125U410 filter has been designed for use in 2G/3G/4G mobile communication systems as well as other communication systems. It can be used for various applications such as TDMA, WCDMA, GPRS, Digital Cellular Standard 900 (DCS1800), UMTS, LTE, and others. This filter can be used in the transmit path as well as the receive path of mobile communication systems, providing a signal filter that is capable of suppressing harmonics, spikes, and other RF noise, and thus paving the way for better signal transmission.

Working Principle: The B39172B5125U410 is a surface acoustic wave (SAW) filter. It consists of a piezoelectric substrate (like Z-cut quartz or LiNbO3) on which two inter-digital transducers (IDTs) and additional electrodes are electroded. When an electrical signal is applied to IDTs, it causes the piezoelectric substrate to vibrate and generate an acoustic wave in the form of a Rayleigh wave. This Rayleigh wave has wave fronts that travel across the surface of the substrate in the form of surface acoustic waves. These surface acoustic waves interact with the IDT electrodes and create electrical signals which form the output of the filter. The correct geometry of the IDT electrodes controls the direction and amplitude of the acoustic wave, allowing them to construct the desired frequency response of the filter.

The main advantage of SAW filters is their size and weight. They are much more compact and lightweight than alternate filters of equivalent size. The B39172B5125U410 filter is extremely miniature yet robust, providing an excellent out of band attenuation and stable performance even in harsh environments. This filter is also highly efficient, providing a high selectivity for excellent signal-to-noise ratio in application such as digital data transmission.

SAW filters like the B39172B5125U410 provide reliable performance over wide temperature and voltage ranges with minimal distortion, making them an essential part of any communication system. They are also easily customizable, allowing users to tailor the frequency response of the filter according to their needs. These filters are ideal for use in applications such as cellular phones, base stations, satellite systems, navigation systems, and more.

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