9C-27.000MBBK-T Crystals, Oscillators, Resonators

Series:	9C
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	MHz Crystal
Frequency:	27MHz
Frequency Stability:	±50ppm
Frequency Tolerance:	±50ppm
Load Capacitance:	20pF
ESR (Equivalent Series Resistance):	30 Ohms
Operating Mode:	Fundamental
Operating Temperature:	-20°C ~ 70°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	HC-49S
Size / Dimension:	0.449" L x 0.189" W (11.40mm x 4.80mm)
Height - Seated (Max):	0.161" (4.10mm)

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Crystals: 9C-27.000MBBK-T Application Field and Working Principle

Crystal oscillators are important components used in electronic circuits and digital electronic circuits.In many cases,these crystalsare the reference of frequency and phase for radio communications,instruments and generators. The 9C-27.000MBBK-T crystal is widely used in various frequency control applications.The rest of this article will discuss the application fields and working principle of this crystal in detail.The 9C-27.000MBBK-T crystal is commonly used in wireless communication,audio,automotive electronics,instruments,test and measurement and other fields.In wireless communication,the 9C-27.000MBBK-T oscillator helps to increase the stability of the wireless local area network (WLAN) frequency,ensuring that the transmitted and received data can be synchronized.In addition,the 9C-27.000MBBK-T crystal is also used in the local oscillator circuit of the RF receiver.In audio,the 9C-27.000MBBK-T crystal oscillator is used to maintain the stability of the clock,facilitating reliable digital audio playback.In automotive electronics,the 9C-27.000MBBK-T crystal is used as a reference frequency source for various controllers,such as ACC unit.In instruments,the 9C-27.000MBBK-T crystal oscillator is used in control systems.In test and measurement,the 9C-27.000MBBK-T crystal provides a reference frequency source for test instruments.The working principle of the 9C-27.000MBBK-T crystal oscillator is based on the piezoelectric effect.Piezoelectric effect is a phenomenon in which crystal generates an electric field due to mechanical pressure.A thin slice of piezoelectric material is placed between two metal electrodes in the 9C-27.000MBBK-T crystal.If there is a time-varying electric field applied to the electrodes,the crystal will vibrate at its own resonant frequency,creating an electric field.The electromechanical coupling between the metal electrodes and the crystal material greatly affects the oscillation frequency and stability of the oscillator.The performance of the 9C-27.000MBBK-T crystal oscillator depends on the quality of the crystal materials and the associated metal electrodes.The crystal material should be of low loss and high pressure,and the metal electrodes should be well matched with the crystal material to prevent frequency drift.In addition,the temperature of the 9C-27.000MBBK-T crystal oscillator will also cause frequency drift.This can be reduced by temperature compensation techniques,such as oven-controlled crystal oscillators (OCXOs).Most crystals,including the 9C-27.000MBBK-T crystal,are usually constructed with two electrodes,but they may also be constructed with more than two electrodes.When the 9C-27.000MBBK-T crystal oscillator is constructed with more than two electrodes,the noise can be reduced and the frequency stability can be improved by using de-tuning techniques.In addition,the 9C-27.000MBBK-T crystal oscillator can be packaged in different forms,including surface mount,through hole,molded,ceramic packages and so on.The choice of package type should be determined by the application in which the oscillator is used.In conclusion,the 9C-27.000MBBK-T crystal is a widely used crystal oscillator in various frequency control applications.It has a wide range of application fields,including wireless communication,audio,automotive electronics,instruments,test and measurement and many others.It works based on the piezoelectric effect,which makes use of the electromechanical coupling between the metal electrodes and the crystal material to create an oscillation frequency.The performance of the 9C-27.000MBBK-T crystal oscillator can be improved by different packaging types and temperature compensation techniques.This makes the 9C-27.000MBBK-T crystal oscillator a reliable and versatile reference frequency source.

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