B39881B4303F210

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SAW filters are frequency-selective devices used to allow or reject signals of predetermined frequencies. The B39881B4303F210 filter is a surface acoustic wave (SAW) filter, a type of passive electronic filter used in electronic circuitry, specifically for the purpose of radio frequency (RF) signal filtering. SAW filters are used in RF circuits to block or allow transmission of signals having certain bandwidth.

The B39881B4303F210 filter is elliptically-shaped and offers better than -20 dB of passband loss. Its operating temperature ranges from -30°C to 85°C. Its center frequency is 179.07 MHz and the relative bandwidth is 14.9 MHz. Furthermore, it consumes around 47.2 mA of current.

The B39881B4303F210 filter is mainly employed in cellular bands applications such as those possessed by Global System for Mobile communications (GSM) and Personal GSM (PGSM) systems for improving and filtering the signals. It is also used in wireless local area networks (WLAN), personal communication systems (PCS) as well as wideband wireless systems.

SAW filters offer many advantages over other types of filters including small size, low signal loss and very good repeatability. In addition, these filters are easily designed for most frequency ranges and provide good selectivity. They also feature low insertion loss, steep roll-off, low spurious signals and good temperature stability.

The working principle of B39881B4303F210 filter is quite simple. It works by emitting a beam of acoustic waves created by an interdigital transducer which is nano-machined into a substrate. The filter functions as an oscillator which functions as a transmitting and receiving device at the same time. The acoustic waves are then passed through the media in the substrate which acts as a waveguide. The waveguide acts to separate undesirable frequencies from desired frequencies.

In addition, the filter isolates a desired frequency range from interference from adjacent frequency bands. It efficiently reduces noise and interference signals passing through it to desired frequencies, improving the overall signal quality. Moreover, SAW filters are easily implemented into existing circuits without the need for large and complex components, making them ideal for use in a variety of applications.

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