SIT9002AI-18N33DK

Frequency Stability:	±50ppm
Height:	0.031" (0.79mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	84mA
Spread Spectrum Bandwidth:	±2.00%, Center Spread
Operating Temperature:	-40°C ~ 85°C
Frequency Stability (Total):	--
Series:	SiT9002
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	--
Available Frequency Range:	1MHz ~ 220MHz
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: SIT9002AI-18N33DK Application Field and Working PrincipleProgrammable oscillators are electronic components used to produce sinusoidal, triangular or square waves used as reference clock signals or clocks in microprocessors and other digital circuits. The most commonly used type of programmable oscillator is the SIT9002AI-18N33DK, a frequency-tunable miniature oscillator with a frequency range of 32.768 Hz to 25.0 MHz, a frequency stability of ± 10 ppm, and a power consumption of 84.8 mW.The SIT9002AI-18N33DK is specifically designed for use in low-power applications, where its low power consumption makes it an ideal choice. Its combination of small size and low power consumption makes it the ideal choice for applications such as sensor networks, wireless communications systems, precision timing, and data logging.The SIT9002AI-18N33DK consists of a quartz crystal and an amplifier, coupled with a Clock Multiplier Unit (CMU). The quartz crystal acts as the oscillator and is responsible for generating the clock signal at a particular frequency. The CMU is programmed to provide the desired clock, either by adjusting the accuracy of the clock or by changing the clock frequency. The amplifier is responsible for providing the appropriate gain or attenuation to maintain the frequency stability of the clock signal.The SIT9002AI-18N33DK has several advantages over other types of programmable oscillators, the most important of which is its high frequency accuracy, which is maintained over a wide temperature range. It also requires relatively low power consumption and offers excellent temperature stability. Additionally, the SIT9002AI-18N33DK has a low jitter, which means it can accurately distinguish changes in the clock frequency or accuracy while maintaining a steady clock speed.The SIT9002AI-18N33DK is a highly programmable oscillator that can be easily adapted for a variety of applications. The frequency can be adjusted by changing the CMU’s internal programming to the required frequency, or the accuracy of the clock can be adjusted using the internal digital control circuits. Additionally, the output frequency of the SIT9002AI-18N33DK can be changed using an external voltage-controlled oscillator (VCO) or an external frequency-controlled oscillator (FCO).In conclusion, the SIT9002AI-18N33DK is a versatile, low-power programmable oscillator designed for applications such as sensor networks, wireless communications systems, precision timing, and data logging. Its high accuracy, low power consumption, and small size enable it to provide the precision needed to accurately control clock signals, making it an ideal choice for a wide range of applications.

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