B39232B8762K610 Filters

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Surface Acoustic Wave (SAW) Filters are becoming increasingly popular due to their simple structure, low power consumption and high performance. B39232B8762K610 is one of the most popular SAW filters developed by Panasonic, and its application field and working principle will be discussed in this paper.

Introduction to B39232B8762K610

B39232B8762K610 is a ceramic band pass filter developed by Panasonic. The filter is housed in an SSP package (stacked spiral plate package) with dimensions of 3.2 x 1.5 x 0.7 mm, and is suitable for use in 4th Generation Long Term Evolution (4G LTE) mobile communication systems. The filter is designed to pass frequencies from 1938 MHz to 1940 MHz, and to reject any signals outside this band with a center frequency of 1939 MHz and a 3dB bandwidth of 2 MHz.

Application Field of B39232B8762K610

B39232B8762K610 is mainly used in cellular telephone base stations for reception of 4G LTE signals. It is also suitable for use in other wireless communication systems such as Global System for Mobile Communications (GSM), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDMA) and International Mobile Telecommunications (IMT-2000). The filter also provides excellent protection from spurious signals in this frequency range, making it suitable for use in areas with dense signal coverage.

Working Principle of B39232B8762K610

At the heart of B39232B8762K610 is a thin film of piezoelectric material, usually quartz, deposited onto a ceramic substrate. When an electrical signal is applied to the filter, the quartz vibrates and generates an acoustic wave that radiates across the surface of the substrate. This acoustic wave interacts with the circuit structures on the surface of the substrate, producing a band pass response. The circuit structures and the frequency response of the filter determines the specific transmitting and rejecting characteristics.

The filter also has two internal resonators. One resonator is located at the input of the filter, and the other is located at the output. These resonators work together to increase the rejecting performance and suppress the spurious signals outside the pass band. The input and output pins of the filter are also specially designed to reduce the interaction between the circuits, further improving the performance and stability of the filter.

Conclusion

B39232B8762K610 is a ceramic band pass filter developed by Panasonic, mainly used in cellular telephone base stations for reception of 4G LTE signals. The filter has an SSP package with dimensions of 3.2 x 1.5 x 0.7 mm, and is designed to pass frequencies from 1938 MHz to 1940 MHz. At the heart of B39232B8762K610 is a thin film of piezoelectric material, usually quartz, deposited onto a ceramic substrate. The filter also has two internal resonators which work together to increase its rejecting performance and suppress the spurious signals outside the pass band.

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