SIT8918AA-28-18E-25.000000D

Frequency Stability:	±30ppm
Current - Supply (Disable) (Max):	3.8mA
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4mA
Operating Temperature:	-40°C ~ 125°C
Series:	SiT8918
Voltage - Supply:	1.8V
Output:	LVCMOS, LVTTL
Function:	Enable/Disable
Frequency:	25MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Oscillators : SIT8918AA-28-18E-25.000000D

Oscillators refer to the devices which can generate a periodic signal output. The signal output, usually a sine wave with a specific frequency, is often used as a clock controller in digital circuits, an output for testing and monitoring purpose, as a test signal etc. Oscillators are usually classified into two types - analog and digital. SIT8918AA-28-18E-25.000000D is a type of analog oscillators. It is widely used in automotive applications, medical and consumer electronics. It is an ultra-low- power, high precision, ultra-stable, quartz-based oscillator. The oscillator comes with a low current operation and long-term stability with 2 parts per million (ppm) per year .

Application Field

The SIT8918AA-28-18E-25.000000D can be used in various applications such as:

• Battery-operated medical equipment.
• Automotive systems.
• Wireless devices.
• Computer peripherals.
• Industrial and consumer applications.

It is an ideal device for applications requiring low power consumption and high precision.

Working Principle

The oscillator is based on a quartz crystal resonator. It works by alternately charging and discharging the quartz crystal resonator through a quartz crystal resonator. The quartz crystal resonator converts the energy from the charge and discharge cycles into an electrical signal.Since the quartz crystal resonator has a very consistent mechanical behavior and a power supply of constant current, it serves as a reference for the oscillator\'s output frequency. This allows for extremely precise oscillation, with frequency stability up to ±0.02 PPM/year at temperature beyond 25 degrees Celsius (77°F).The oscillator also features a wide -3dB to +3dB frequency bandwidth to ensure good TCVSS (Total Capacitive Voltage Supression System) stability and low jitter performance.

Conclusion

In conclusion, the SIT8918AA-28-18E-25.000000D oscillator is a ultra-low power, high precision, ultra-stable quartz based oscillator designed to be used in automotive applications, medical and consumer electronic products. This oscillator is capable of producing frequencies from as low as 0.01Hz to as high as 75MHz with a long-term stability up to 2 parts per million (ppm) per year.It features wide -3dB to +3dB , TCVSS stability and low jitter performance ensuring good performance and reliability for all applications.

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