9B-28.63636MAAJ-B

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Crystals have become an integral part of modern electronic equipment. They are typically used in applications requiring signal frequency stability, such as radio communications, Global Positioning System (GPS) receivers, and frequency synthesizers. At the heart of these devices are quartz crystals, which are miniature packages of specially designed families of piezoelectric or pyroelectric materials. A quartz crystal is a slice or wafer of either crystalline quartz or synthetic quartz material like silicon, that is cut and shaped with a specific configuration and frequency to oscillate at a predetermined frequency when a voltage is applied to it. This article is a brief overview of 9B-28.63636MAAJ-B application field and working principle.

The 9B-28.63636MAAJ-B crystal unit is primarily used as an oscillator in the frequency range of 28.63636MHz. In terms of application fields, this crystal can be mainly used in the communiction field, and more specifically, in digital communication equipment, satelite and base stations, base transceiver systems, mobile communication equipment, radar and navigation systems, electronic toll collection systems, television broadcasting systems and telemetry equipment. Due to its high stability and immunity to external signals, this crystal is often the choice of many in these applications.

In terms of working principle, the 9B-28.63636MAAJ-B crystal unit is a piezoelectric vibrator cut from quartz, a crystalline material which can vibrate at a predefined frequency when a voltage is applied to it. The crystal is mounted on a sleeve and housed in a metal case along with an attached oscillator circuit. The oscillator circuit is generally a low-power 4-port network complete with two capacitors that sets up an feedback with the crystal. This feedback ensures that the output signal, which is generated by the oscillator circuit, is the same frequency as the crystal. In addition, the oscillator circuit functions as a noise filter to ensure that the signal is clear and secure.

In summary, the 9B-28.63636MAAJ-B crystal unit is mainly used in digital communication equipment, satelite and base stations, base transceiver systems, mobile communication equipment, radar and navigation systems, electronic toll collection systems, television broadcasting systems, and telemetry equipment. It works on the principle of piezoelectricity, and the oscillator circuit helps to filter the signal. As such, it is a reliable and useful crystal for many applications.

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