AST3TQ-26.000MHZ-2

Frequency Stability:	±280ppb
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.079" (2.00mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	7mA
Operating Temperature:	-50°C ~ 90°C
Series:	AST3TQ
Voltage - Supply:	3.135 V ~ 3.465 V
Output:	LVCMOS
Function:	--
Frequency:	26MHz
Type:	TCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Strip

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Oscillators: AST3TQ-26.000MHZ-2 Application Field and Working Principle

Oscillators are used in many sectors to generate specific frequencies, and are beneficial electrical components when precise timing or frequency is needed. The AST3TQ-26.000MHZ-2 (Crystal Oscillator) by Abracon is a very common oscillator used in applications that require an output frequency of 26.000MHZ. This article will discuss the application field of the AST3TQ-26.000MHZ-2 and how it works.

Applications

The AST3TQ-26.000MHZ-2’s main application field is communications and networking equipment. Crystal oscillators with frequencies in passive communications components often require a high precision, where this oscillator fits the need perfectly. It is extremely useful in HDTV and CATV components, and is widely used in satellite receiving equipments, such as satellite receivers and video frequency converters.This crystal oscillator also has applications in both home and professional computer systems. This type of oscillator is often found in motherboards and computer peripherals. Additionally, the AST3TQ-26.000MHZ-2 is useful in professional medical and scientific equipment. Because of its high precision, it is often used in medical imaging systems and laboratory testing equipment.

Working Principle

The AST3TQ-26.000MHZ-2 oscillator works by using a crystal quartz-based resonator, and is subject to the vibration properties of a material known as Piezoelectricity. Piezoelectricity is the stress-induced potential difference created by specific piezoelectric crystals when exposed to a mechanical force.The crystal quartz material is placed in the oscillator\'s central component, known as the resonator. An electrical input is then used to electrically excite the crystal material, which creates a vibrating system due to the piezoelectric effect. The crystal material oscillates at a specific frequency, known as its natural resonance frequency. This natural resonance frequency is usually the desired frequency generated by the quartz oscillator, in this case 26.000MHZ.The output of the oscillator is then measured by an electric circuit. This electric circuit is connected to the quartz material and provides the necessary voltage to keep the oscillator running at the desired output frequency. This electric circuit is also known as the Overtone Circuit, and it is responsible for maintaining the oscillation frequency of the crystal material so it does not exceed its natural resonance frequency.

Conclusion

The AST3TQ-26.000MHZ-2 is a crystal oscillator with an output frequency of 26.000MHZ. It is used mainly in communications and networking equipment, home and professional computers, and medical and scientific instruments. It works by utilizing the piezoelectric effect in a crystal quartz material placed in a resonator. An electric circuit, known as the Overtone Circuit, is connected to the quartz material and provides the necessary voltage to maintain the oscillator\'s output frequency.

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