MP270B

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Crystals are essential features of many electronic equipment. They possess the ability to precisely transmit or receive signals and provide an element of stability in communications. One such crystal is the MP270B. The MP270B is an AT-cut crystal oscillator, which exhibits superior electrical and frequency stability. This crystal is used in applications such as data communications and frequency synthesis.

The MP270B has a frequency range of 16 megahertz to 125 megahertz and produces an output signal of third (3rd) overtone, which allows for its use in up to 200 megahertz applications. It also provides wide-spaced frequencies that allow for greater accuracy and precision in communications. The MP270B is ideal for applications where frequency stability is essential and where a low phase noise performance is needed, such as in cellular systems, GPS or GSM.

The MP270B works on the concept of AT-cut crystals, which means that its frequency is anharmonically related to the temperature. This concept is based on the ‘twelve-degree’ rule, which states that the frequency versus temperature relationship of an AT-cut crystal can be expressed as a twelve-degree parabola (y = 2x cube). This relationship ensures that the MP270B crystal provides exceptional frequency stability over the temperature range of (-10 to +70 degrees Celsius).

The MP270B utilizes basic quartz oscillator technology to provide its superior electrical and frequency stability. The crystal contains a quartz material with 32 mechanical resonators in a metal housing, and a proof mass is attached to the top of the metal housing. The proof mass is adjusted until it reaches a resonance frequency, and it is then connected to a metal shell. This shell divides the quartz material into two sections and imparts different levels of tension to the quartz material, thus producing different frequencies.

The MP270B is also equipped with an amplifier, which boosts the output signal’s strength and enhances the accuracy of its transmission. The crystal also features a high frequency response, which allows it to handle fast data rates and eliminating the need for an external tuning element. In addition, the MP270B exhibits excellent long-term stability and it features a low-profile package, making it ideal for space-saving applications such as cellular phones and personal computers.

The MP270B is a reliable, high stability AT-cut crystal oscillator, which is suitable for a range of applications, due to its superior electrical and frequency stability. The crystal\'s wide-spaced frequencies provide increased accuracy and precision in communications, and its high-frequency response makes it an ideal choice for applications that require fast data rates.

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