SIT8008BCL3-28E

Frequency Stability:	--
Current - Supply (Disable) (Max):	4.2mA
Height:	0.031" (0.79mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4.5mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	±20ppm
Series:	SiT8008B
Voltage - Supply:	2.8V
Output:	LVCMOS
Function:	Enable/Disable
Available Frequency Range:	1MHz ~ 110MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tube

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Programmable Oscillators

Programmable oscillators are widely used in the field of precision frequency control and can simplify the design of the application circuit and reduce the cost by using the same type of programmable oscillator. SIT8008BCL3-28E is one of the commonly used programmable oscillators. In this paper, the application field and working principle of SIT8008BCL3-28E are introduced.

Applications of SIT8008BCL3-28E

SIT8008BCL3-28E is a 3V voltage controlled crystal oscillator with a frequency range from 4kHz to 28MHz. It has very low power consumption and excellent frequency stability over wide temperature ranges. Therefore, it can be used in various fields such as computer system clock, high-speed digital communication components, high-speed data transfer, and so on.SIT8008BCL3-28E is suitable for applications with a wide frequency tuning range and high temperature stability, such as crystal oscillator circuits, phase-locked loop circuits, and electronic clock generators. In such applications, frequency changes due to temperature fluctuations and ageing are minimized, and reliability and stability are greatly improved.

Working Principle of SIT8008BCL3-28E

The working principle of SIT8008BCL3-28E is to use the frequency characteristics of quartz crystal and the control principle of voltage. The SIT8008BCL3-28E is composed of a voltage-controlled resonator and a temperature compensation circuit. The resonator of the SIT8008BCL3-28E is quartz crystal. When a DC voltage is applied to a quartz crystal, the elastic constant, density and other electrical characteristics of the crystal will change with the voltage, resulting in a change of the resonance frequency.The temperature compensation circuit of the SIT8008BCL3-28E is composed of a negative temperature coefficient (NTC) resistor, a temperature sensor and a capacitor. The NTC resistor is used to compensate the frequency drift caused by temperature, and the capacitor is used to improve the phase noise performance. The temperature sensor is used to monitor the temperature changes, so that the voltage applied to the resonator can be adjusted accordingly.The three parts of the SIT8008BCL3-28E work together to achieve precise frequency control. When the voltage applied to the resonator is adjusted, the frequency of the SIT8008BCL3-28E can be adjusted precisely. The temperature compensation circuit ensures that the frequency of the SIT8008BCL3-28E remains unchanged over a wide range of temperatures.

Conclusion

To sum up, SIT8008BCL3-28E is a 3V voltage controlled crystal oscillator with a frequency range from 4kHz to 28MHz. It has very low power consumption and excellent frequency stability over wide temperature ranges, making it suitable for various applications, such as crystal oscillator circuits, phase-locked loop circuits and electronic clock generators. In addition, the frequency of the SIT8008BCL3-28E can be adjusted precisely with the help of the temperature compensation circuit.

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