SF14-1582M5UUD1 Filters

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Surface acoustic wave (SAW) filters are electronic filters that use acoustic waves propagating along the surface of a piezoelectric material, such as quartz, to filter out unwanted frequencies in a signal. The SF14-1582M5UUD1 is an RF SAW filter designed for use in cellular communication and digital radio systems, such as GSM, WCDMA, UMTS, and LTE.

The SF14-1582M5UUD1 is an RF band pass filter with a carrier frequency of 1510 MHz and a bandwidth of 82 MHz. It is constructed from four piezoelectric quartz wafers. Two vibration modes are employed to create an acoustic filter, with one mode used for stop-band attenuation and the other for pass-band selection. The pass-band response of this filter is between 1440 MHz and 1522 MHz, with a maximum insertion loss of 1.5 dB and a minimum isolation of 27 dB.

The working principle of the SF14-1582M5UUD1 is based on the equation for the speed of an acoustic wave travelling along a surface of a piezoelectric material. When an electrical signal is applied to the filter, the quartz resonator generates an acoustic wave which travels along the surface of the quartz, and its frequency is determined by the thickness and composition of the quartz.

The acoustic wave then interacts with the electrodes on the surface of the quartz wafer to create a reflection. This reflection is then used to filter out unwanted frequencies. Since the reflection of the acoustic wave is directly dependent on the frequency of the electrical signal, the filter is able to selectively filter out the desired frequencies while allowing other frequencies to pass.

The SF14-1582M5UUD1 is designed to provide highly selective signal filtering and has a wide range of applications in cellular and digital radio systems. It is ideal for use in modern cellular systems, including GSM, CDMA, WCDMA, and LTE. It can also be used in digital radio systems, such as wifi, WiMAX, and Zigbee, as well as in point-to-point and point-to-multipoint radio systems.

The SF14-1582M5UUD1 is an excellent choice for a wide range of RF applications requiring a narrow signal bandpass. With its high selectivity, low insertion loss, and wide operating bandwidth, it provides a cost-effective solution for designers seeking to improve signal performance in their applications.

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