B39389K3953M100S1

SAW Filters are a specialized type of filters used in many digital electronic devices. In particular, they are often used to remove unwanted spurious signals, such as TV interference and radio-frequency noise. The B39389K3953M100S1 is a popular example of a SAW filter, so let’s take a look at its application field and working principle.

SAW filters are used in a wide range of locations throughout the modern world. Common applications include in auto audio systems, satellite TV receivers, mobile phone base stations, wireless communications, and more. Many of these applications are highly sensitive to noise, and so require an effective mechanism for filtering out unwanted frequencies. This is where SAW filters come in.

At its core, the B39389K3953M100S1 SAW filter is composed of a thin layer of piezoelectric material. Piezoelectric materials, such as quartz, possess the unique property of vibrating when an electrical signal is applied to them. This vibrational response is used by the B39389K3953M100S1 to effectively remove some unwanted frequencies from the signal.

In the B39389K3953M100S1 SAW filter, the piezoelectric material is formed into a resonant cavity. The volume of the cavity is determined by the size of the piezoelectric element and the spacing between the two electrodes that attach to it. This volume determines the frequency at which the filter is most effective. For the B39389K3953M100S1, this frequency is around 1kHz. This means that the filter is best at removing signals at frequencies close to 1kHz.

The cavity is surrounded by a metallic grating, which helps to ensure that only the frequencies of interest are allowed to pass through the filter. These frequencies will be unaffected by the filter, while other frequencies are reflected, allowing the B39389K3953M100S1 to act as an effective noise filter. This allows the filter to block out unwanted signals without negatively impacting the desired signals.

In summary, the B39389K3953M100S1 SAW filter is a specialized type of filter used in many modern electronic devices. It is composed of a piezoelectric material that is formed into a resonant cavity surrounded by a metallic grating. The filter is most effective at removing signals at frequencies close to 1kHz. As such, it is perfect for use in applications that are sensitive to noise, such as auto audio systems and TV receivers.