B39421B3675U310W3 Filters

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SAW (Surface-Acoustic-Wave) filters are one of the most widely used frequency-selective components in current communication systems. The B39421B3675U310W3 is an extremely versatile and widely used filter designed to meet the stringent requirements of modern communication systems. This article will discuss the application field and working principle of the B39421B3675U310W3.

The B39421B3675U310W3 is a low-pass surface-acoustic-wave (SAW) filter with a passband frequency of 220-2750 MHz. It is designed for use in applications such as wireless communication systems, TV reception, navigation systems, base stations, audio/video receivers and transmitters, and satellite communications systems. The B39421B3675U310W3 is constructed using a lattice-transmission-line structure that allow high precision frequency control.

The working principle of the B39421B3675U310W3 is quite simple yet effective. It consists of two electrodes connected to an amplifier which is further connected to a quartz crystal. The piezoelectric effect of the quartz crystal creates surface acoustic waves (SAWs), and when a signal is applied to one of the data electrodes, the resulting wave is the combination of the SAW and the signal. This wave is then sent to the other data electrode which passes the desired frequency and blocks the rest. This selective filtering process is carried out with high precision, resulting in a clean, noise-free signal.

The B39421B3675U310W3 is highly efficient and reliable due to its low insertion loss, high rejection, and wide operating temperature range. The filter can handle input powers of up to 12 dBm and has a robust design that makes it suitable for use in harsh environments. The filter also provides excellent performance in frequency switching and offers good stability even under high temperature variations.

In conclusion, the B39421B3675U310W3 is a versatile and reliable surface-acoustic-wave (SAW) filter that is designed to meet the challenging requirements of modern communication systems. It is able to provide precision frequency control with low insertion loss, high rejection, and wide operating temperature range, making it the perfect choice for many communication applications.

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