SIT9005ACU1G-25NN

Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Height:	0.030" (0.76mm)
Size / Dimension:	0.098" L x 0.079" W (2.50mm x 2.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	6.5mA
Spread Spectrum Bandwidth:	-3.71%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SIT9005
Voltage - Supply:	2.5V
Output:	LVCMOS
Function:	--
Available Frequency Range:	1MHz ~ 141MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	SSXO
Base Resonator:	MEMS
Part Status:	Active

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Introduction
Programmable Oscillators are versatile, computer-controlled devices used to produce a range of specific, repeatable outputs. The SIT9005ACU1G-25NN is one of the most advanced programmable oscillators available, ideal for a range of commercial and automotive applications. It is a low-power programmable oscillator which offers high accuracy and tight stability in a highly integrated solution. The oscillator has generous programming capability and comes with a range of features designed to make it easy to use.
Application Field
The SIT9005ACU1G-25NN is a versatile programmable oscillator which can be used in a wide range of applications. It is particularly suitable for precision timing requirements in automotive applications, offering high-accuracy timing and reliable operation even under extreme temperatures and other demanding conditions. It is also useful for commercial applications requiring dynamic re-timing for switching DC-DC converters, generating clock signals for control systems, and powering low-power devices such as LEDs. The device is also features a low-noise performance, making it ideal for applications involving communication systems, or where precision timing is essential.
Working Principle
The SIT9005ACU1G-25NN oscillator consists of a number of discrete components, including a quartz crystal and an integrated circuit. The quartz crystal is used as a frequency reference, providing a stable and precise frequency signal. The integrated circuit, in turn, is designed to translate this signal into a range of programmable output signals. Key elements of the IC include a low-noise voltage control oscillator (VCO) and a fractional-N phase-lock loop (PLL). The PLL is responsible for locking into the frequency reference and producing a range of output signals. The VCO provides the ability to adjust the frequency of the output signal, giving the oscillator more flexible programming capabilities. Additionally, on-chip components such as an EEPROM and programmable-filter blocks allow further customization of the output. Finally, an input-amplifier stage takes in the frequency reference signal, boosting and controlling it before passing it on to the PLL for further processing.Conclusion
In conclusion, the SIT9005ACU1G-25NN is a versatile and highly advanced programmable oscillator suitable for a range of commercial and automotive applications. It offers low-power operation, high accuracy and tight stability, with generous programming capabilities. Its key components – including a quartz crystal and an integrated circuit – allow it to produce a range of programmable output signals, making it a versatile and reliable choice for many applications.

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