402F30722IAR

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Crystals

The framework of crystals systems is abound in the semiconductor industry. From its use within optical communication networks to its implementation within cell phones and satellites, the benefits ofcrystals and their application fields have become increasingly evident.

The 402F30722IAR is one example of a crystal product from the leading manufacturer Abracon Corporation. Designed for use in high performance frequency control applications, the 402F30722IARprovides frequency stability of up to ±0.25ppm over the temperature range of -40°C to +85°C.

General characteristics

The 402F30722IAR is a FlexFit Passive Crystal. Operating over a temperature rangeof -40°C to +85°C, this crystal is specifically designed to meet the requirements of precision frequency control without the need for external components or external voltage sources. The device incorporates an integrated crystal oscillator circuit, allowing for a variety of frequency configurations/options.

The crystal is based on standard 7mm ceramic and stainless steel hermetic packages and is RoHS compliant. Its standard frequency range is from 8MHz to 50MHz, with a maximum allowable frequency tolerance of ±0.25ppm over the temperature range. In addition, the 402F30722IAR features a high frequency stability of ±0.40ppm over a temperature range of +25°C to +85°C.

Application fields

The 402F30722IAR crystal can be used in applications such as cellular base stations, precision frequency control and timing solutions, satellite communications, and other high performance frequency control applications. It is especially suitable for use in applications that require precise frequency control and stability over a range of temperatures.

Working principle

The 402F30722IAR crystal uses the piezoelectric effect for its frequency control. When an electric field is applied to a crystal, it vibrates in a manner that is related to its physical properties, such as its lattice structure, crystal shape and applied load. This resulting physical vibration enables the crystal to form what is known as a resonant circuit. The resonant circuit will then oscillate at a certain frequency when in the presence of an electric field. This is the basis on which the 402F30722IAR crystal operates.

The crystal\'s frequency is adjusted by either controlling the applied capacitance or by altering the internal load of the crystal itself. The tunable capacitors used to adjust the capacitance are typically housed in the same package as the crystal, allowing the user to adjust the frequency without the need for additional hardware or components. The internal load can also be altered by changing the size of the crystal, which allows for a wider frequency range to be achieved.

In addition, the 402F30722IAR also features an integrated temperature compensation circuit, which helps to maintain the accuracy of the crystal over a wide temperature range. This circuit automatically compensates for any frequency changes caused by environmental changes, resulting in improved frequency accuracy.

The 402F30722IAR crystal is a reliable and cost effective solution for a wide range of frequency control applications and provides an excellent source of stability for complex digital and wireless communications systems.

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