CM309E7372800BBKT

Series:	CM309E
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	7.3728MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±50ppm
Load Capacitance:	20pF
ESR (Equivalent Series Resistance):	80 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-10°C ~ 60°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	4-SOJ, 9.60mm pitch
Size / Dimension:	0.461" L x 0.157" W (11.70mm x 4.00mm)
Height - Seated (Max):	0.146" (3.70mm)

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Crystals: CM309E7372800BBKT Application Field and Working Principle

Crystals are the smallest elements of matter and are the building blocks of our world. They are composed of atoms, molecules, and even electrons, and all these ions, molecules, and electrons have been arranged in an ordered manner. Crystals play an important role in many aspects of life, like electronics, communications, aerospace, and so on. CM309E7372800BBKT crystal is one of the most common crystals in electronics. This section will be discussing the application field and working principle of the CM309E7372800BBKT crystal.

Application Field

CM309E7372800BBKT crystal is widely used in various electronic products, such as telephone tone generators and circuit boards. It is mainly used in oscillator circuits and digital applications, because it has the characteristics of low phase noise, high stability and good phase accuracy. In mobile phones, CM309E7372800BBKT crystal is often used for local oscillator circuits, because it can provide high frequency output signals, which ensures the stable quality of the frequency conversion transmission in mobile phones. Additionally, this type of crystal is used in signal generators, communication transmitters, military radio modulation systems, and other electronic equipment.

Working Principle

CM309E7372800BBKT crystal is an AT cut quartz crystal. It consists of two electrodes located on two sides of a quartz plate and a quartz substrate that acts as a dielectric medium between them. When a voltage is applied across the electrodes, an electric field is created which causes the quartz plate to vibrate. The quartz plate has natural vibrations at a precise frequency, which is determined by the thickness of the quartz, size of the quartz plate and the tightness of the electrodes. The frequency of the vibration is called the resonance frequency. When the quartz plate vibrates at this frequency, it oscillates and produces an electrical signal that is applied to circuit. This signal is then used as a time reference for controlling the frequency of the oscillator circuit. CM309E7372800BBKT has a frequency range of 30kHz to 300kHz, and has a frequency stability of +/-10ppm over the full temperature range. It also has a lower phase noise of -120dBc/Hz at 1kHz offset, making it ideal for use in sensitive communication and military applications. In addition, it can be combined with other crystals or active components to form different oscillator circuit configurations, allowing designers to customize their applications to achieve the desired performance.The key advantages of CM309E7372800BBKT crystal over other available crystals are its low power consumption and wide frequency range; which make it suitable for different applications. Its good phase noise performance also makes it to be used in many sensitive communication systems. Furthermore, its high stability ensures that the frequency it produces will remain constant over temperature and time.

Conclusion

In conclusion, the CM309E7372800BBKT crystal is a versatile and reliable crystal with a wide range of applications in many industries. It is used in oscillator circuits, signal generators, communication transmitters, military radio modulators, and other electronics. Its excellent performance is achieved by a combination of low power consumption, wide frequency range, good phase noise, and high stability. Therefore, it is an important element of modern electronic products.

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