B39212B7958P810

Series:	*
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Introduction to SAW FiltersSAW filters, or Surface Acoustic Wave filters, are a type of electronic component used to filter wideband signals. They are used in many telecommunications systems, mobile phones, and other electronic systems. Due to their low insertion loss and high power handling ability, SAW filters are considered to be a highly efficient and cost-effective solution for many filtering needs. B39212B7958P810 Application Field and Working PrincipleThe B39212B7958P810 is a High Frequency SAW filter, which is typically used in receivers for cordless telephone systems operating in the 860-900MHz frequency range. It consists of three main components: a piezoelectric substrate, a receiving diode, and an RF signal path. The piezoelectric substrate is a type of material that vibrates mechanically when a voltage is applied. In the case of the B39212B7958P810, the substrate acts as a delay line, which is an electronic component that delays a signal by a fixed amount of time. By controlling the size of the delay line, the frequency of the signal can be adjusted. The receiving diode is a semiconductor component that acts as a switch in the SAW filter. When a voltage is applied, the diode will turn "on," allowing the signal to pass through. When the voltage is removed, the diode will turn "off," blocking the signal from passing through. By carefully controlling the voltage levels applied to the receiving diode, the filter can be adjusted to pass or block a specific range of frequencies. The RF signal path is composed of several capacitors and inductors, which act together to direct the signal along its proper path. The capacitors and inductors control the inductive and capacitive coupling of the signal, which allows the signal to be separated into its various frequency components. In summary, the B39212B7958P810 is an advanced high frequency SAW filter designed for use in cordless telephone systems. It works by controlling the size of its delay line, the voltage levels applied to its receiving diode, and the capacitive and inductive coupling of its RF signal path. This allows the filter to pass or block a specific range of frequencies. The B39212B7958P810 is a highly efficient and cost-effective solution for many filtering needs.

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