B39438X6964N201

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Surface Acoustic Wave (SAW) filters are non-mechanical electronic filters used in many wireless applications. B39438X6964N201 is a type of SAW filter that is designed to work at a low frequency and transmit a signal from a transmitter to a receiver. The filter reduces the noise of the signal, making it easier to distinguish from other signals.

SAW Filter Specifications

The B39438X6964N201 SAW filter is a single stage, low pass filter that allows low frequency signals to pass unhindered, while blocking higher frequency signals. It has a frequency range of 927-930 MHz, a maximum insertion loss of 1.2 dB and a VSWR of 1.9:1. The filter also has a temperature range of -25 to 80 degrees Celsius. The maximum power dissipation is 140 mW and the pulse power handling is 20 watts. The size of the filter is 10.1 x 8.4 x 5.9 mm.

Basic Application Of B39438X6964N201

The B39438X6964N201 filter is used in various wireless communication systems and wireless devices such as cellular phones, radios, and other wireless communication equipment. The filter is most typically used as a transmitter-to-receiver filter, as it is designed to reduce the noise and interference of a signal from a transmitter to a receiver. The filter is also used for wireless data transmission, and is capable of filtering out frequencies that are beyond the range of the transmission, thus helping to ensure that noise-free data is being transmitted across the airwaves.

Working Principles Of B39438X6964N201

SAW filters are based on the principles of acoustic wave propagation in a piezoelectric material. When an alternating voltage is applied to the filter, the piezoelectric material starts to vibrate, and this vibration travels in the form of a surface acoustic wave (SAW). The SAW filter can pass low frequency signals while blocking higher frequency signals. This is because the wavelength of the SAW is determined by the spacing of the metal electrodes on the piezoelectric material, and it is the wavelength of the wave that determines the maximum and minimum frequencies that can be passed through the filter. Thus, by changing the size and spacing of the filter’s metal electrodes, it is possible to control the frequencies that can pass through the filter.

The B39438X6964N201 SAW filter is composed of two parallel metal electrodes on the piezoelectric material, which form the filter’s two ports. When an external electrical signal enters the filter, it is converted to an electrical wave that is transmitted along the piezoelectric material. This electrical wave is then converted to a SAW and is transmitted between the two electrodes. The SAW is filtered and only the frequencies within the filter’s range are allowed to pass through.

Conclusion

The B39438X6964N201 SAW filter is a single stage, low pass filter specifically designed for low frequency signals. It is mainly used in wireless communications such as cellular phones and radios. The filter is based on the principles of acoustic wave propagation in a piezoelectric material, and its SAW is filtered so that only frequencies within the given range can pass through.

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