B39351B3582U310

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SAW filters, short for surface acoustic wave filters, are increasingly being used in telecommunications, cellular communications, and other applications requiring filters for signal transmission. B39351B3582U310 is an example of a SAW filter. This article will describe the application field and working principle of B39351B3582U310.

Applications

B39351B3582U310 is a SAW device used for filtering. The integrated circuit has two resonance modes, a single-band selection mode, and a double-band selection mode. It mainly covers the frequency range of 2.5-3.1GHz. Due to its low power consumption and wide variety of filter options, it is suitable for use in all kinds of RF signal transmission systems. Its potential applications include:

• Wireless handset bi-directional communication
• Mobile communication system repeaters
• UMTS or GSM base-station transceivers
• Cordless phones
• Wireless portable communicators
• Zigbee applications
• Bluetooth applications
• Navigation systems

Working Principle

The B39351B3582U310 works using the piezoelectric effect of quartz crystal. It makes use of surface wave propagation and resonance phenomena to filter out extraneous signals. The SAW filter is composed of an array of electrodes deposited on a piezoelectric substrate. When an electrical signal is applied to the array, it creates a traveling surface acoustic wave propagating along the substrate. The signal then passes through an array of grating, which acts as a filter. By accurately controlling the spacing between the electrodes, the substrate can be made to accept or reject certain frequencies.

In the single-band selection mode, the B39351B3582U310 has a frequency selectable range of 2.5-3.1GHz. The frequency resolution of a single-band selection is 1.8MHz. In the double-band selection mode, the frequency selectable range is 2.5-3.2GHz with a frequency resolution of 9.1MHz. The filter also has a low insertion loss, with a maximum of 0.9dB. The device also operates at a low voltage of 5V and has a current of 90mA, making it energy-efficient.

Conclusion

The B39351B3582U310 is a SAW filter that has many applications in the field of signal transmission. Its low power consumption, wide variety of filter options, and low insertion loss make it an ideal choice for many applications. It works through piezoelectric effect of quartz crystal, using the phenomenon of surface wave propagation and resonance to achieve the filtering of signals.

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