7A-12.288MBBK-T Crystals, Oscillators, Resonators

Series:	7A
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	12.288MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±50ppm
Load Capacitance:	20pF
ESR (Equivalent Series Resistance):	80 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-20°C ~ 70°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	2-SMD, No Lead
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Height - Seated (Max):	0.053" (1.35mm)

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Crystals

Crystals have a long history of playing an important role in telecommunications, radios, and other electronic systems. One such crystal is the 7A-12.288MKK-T, which is often used to generate precise frequency output signals. This crystal is widely used in wireless communication systems and its operating principle and application field will be discussed in this article.

Application Field

The 7A-12.288MKK-T crystal is used in a wide range of applications. Its most common uses are in Mobile communication devices, Global Positioning Systems (GPS), Base Station synchronization devices, microwave communication systems and many other radio communication systems. It is also used in devices that require precise timing signals such as medical equipment and control systems.

Working Principle

The 7A-12.288MKK-T is an AT-cut crystal that utilizes a slice of quartz that has been cut in an angular manner. This cut allows the crystal to vibrate in a resonant frequency that is highly accurate. The quartz material is piezoelectric and the crystal will vibrate at a precise frequency when a voltage waveform of the appropriate frequency is applied to it. The frequency at which the crystal will vibrate is determined by the shape and mass of the crystal plates and the type of material used. The crystal oscillator circuit is designed to maintain the frequency stability of the crystal and also amplifies the output signal to a usable level.

Conclusion

The 7A-12.288MKK-T crystal is a highly reliable and precise source of frequency output. Its wide range of applications, including radio communication systems and medical devices, make it a very valuable part of many different types of devices. Its precision and stability is the result of its physics-based working principle and its AT-cut design.

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