B39431B3900U410

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Frequency - Center:	433.92MHz
Moisture Sensitivity Level (MSL):	--
Bandwidth:	--
Insertion Loss:	1.2dB
Ratings:	AEC-Q200
Applications:	Remote Control
Mounting Type:	Surface Mount
Package / Case:	6-SMD, No Lead
Height (Max):	0.043" (1.10mm)
Size / Dimension:	0.118" L x 0.118" W (3.00mm x 3.00mm)

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SAW Filters

A SAW filter, also known as surface acoustic wave filter, is an electronic filter used in signal processing. It is a specialized form of a resonator that can be tuned to a narrow frequency range. The filter passes sounds of a particular frequency better than other frequencies, making it an effective filter for filtering out unwanted noise from a source signal. SAW filters are used in a variety of applications, such as radio receivers, television receivers, digital signal processing systems, and communication systems.The B39431B3900U410 SAW filter is a low-frequency filter composed of many interconnected SAW elements. It is designed to filter signals between 100 kHz and 1 GHz in an adjustable bandpass configuration. It is suitable for use in direct conversion receivers, baseband audio processing, and digital audio broadcasting applications.The working principle of the B39431B3900U410 filter is based on its acoustic propagation characteristics. It is composed of a series of surface acoustic wave resonators, or elements, arranged in a specific order. Each element is tuned to a specific frequency and amplifies or attenuates the incoming signal according to its frequency components.The filter has two main parts: the delay line and the reflector. The delay line is composed of several sections of metal interconnects that resemble a staircase. These metal interconnects guide an acoustic wave along the surface of the delay line. As the wave travels along the delay line it experiences reflections from the metal interconnects, which cause the wave to be delayed. The reflector acts as a mirror, reflecting the acoustic wave back toward the delay line.The SAW filter amplifies or attenuates the signal based on the frequency of the incoming signal. If the frequency of the signal is close to the resonant frequency of one of the elements, then the signal is amplified. Otherwise, the signal is attenuated. In this way, the filter can be used to filter out a narrow band of frequencies from an input signal.The B39431B3900U410 SAW filter is used in many applications, such as radio receivers, television receivers, digital signal processing systems, and communication systems. It is an effective filter that is able to effectively filter out signals outside of the passband in order to reduce noise and unwanted signals.

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