SIT9003AI-8-33EB

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	4.3µA
Height:	0.039" (1.00mm)
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):	4.1mA
Spread Spectrum Bandwidth:	±0.25%, Center Spread
Operating Temperature:	-40°C ~ 85°C
Frequency Stability (Total):	±50ppm
Series:	SiT9003
Voltage - Supply:	3.3V
Output:	LVCMOS, LVTTL
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:	Bulk

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Programmable Oscillators: SIT9003AI-8-33EB Application Field and Working Principle

Programmable oscillator refers to a kind of electrical device able to generate a stable frequency signal that can be customarily adjusted within a certain range and regulated to ensure operability. The device utilizes built-in voltage controlled oscillator (VCO) technology, with frequency generated through the use of CMOS technology. Programmable oscillators such as the SIT9003AI-8-33EB are widely used in the telecommunications, instrumentation, medical, and automotive industries. This article provides a brief overview of the SIT9003AI-8-33EB\'s application field and working principle.

Application Field of SIT9003AI-8-33EB

The SIT9003AI-8-33EB is a programmable oscillator capable of generating frequencies in the range of 16 – 25MHz. This range covers many applications. It is a commonly used part for cellular and wireless communication systems, such as 4G/LTE mobile phones, Wi-Fi, and Bluetooth. It is also often used in embedded systems, such as those employed in electronic instrumentation and medical equipment. In the automotive industry, it is mainly used for the control and power management of airbag systems and enhanced security systems.

Working Principle of SIT9003AI-8-33EB

The working principle of the SIT9003AI-8-33EB is relatively simple. Essentially, it is a voltage controlled oscillator (VCO) which consists of two main components: an oscillator capacitor and an oscillator resistor. The oscillator capacitor, when connected to the oscillator resistor, is able to generate a frequency signal. Due to the oscillator resistor\'s stability, the frequency is held constant, regardless of the capacitance of the capacitor. The actual frequency generated is determined by the connection of the oscillator capacitor and the oscillator resistor. By changing the capacitance of the oscillator capacitor, the frequency of the signal can be adjusted and fine-tuned. This is why the SIT9003AI-8-33EB is referred to as a programmable oscillator.

Conclusion

The SIT9003AI-8-33EB programmable oscillator has an extensive application range, and its working principle is relatively simple. As the frequency range of 16 – 25MHz is suitable for many applications, this oscillator is widely used in cellular and wireless communication systems, embedded systems, as well as automotive industry. With the ability to adjust the frequency of the signal through changes in capacitance, the SIT9003AI-8-33EB provides a reliable and versatile means to generate custom frequencies.

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