SIT9005ACT1D-18DB

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):	5.5mA
Spread Spectrum Bandwidth:	-0.5%, Down Spread
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SIT9005
Voltage - Supply:	1.8V
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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Programmable Oscillators

Programmable oscillators have a wide range of applications in the industrial, automotive and aerospace industries. The SIT9005ACT1D-18DB is one such programmable oscillator designed to meet the demands of temperature stability, low power consumption and low cost. This article outlines the application field and working principle of the SIT9005ACT1D-18DB.The SIT9005ACT1D-18DB is a surface mount, crystal oscillator with a frequency range from 4-50MHz. It is offered in a 12 pin SIP package, making it well suited for compact, space- constrained applications. The SIT9005ACT1D-18DB features a wide operating temperature range from -40°C to +105°C, making it suitable for harsh environment operations. With its tiny footprint and low power consumption, it is excellent for embedded applications which require a highly accurate, stable and low-jitter timing source.The SIT9005ACT1D-18DB is used in a variety of applications such as frequency hopping radios, base stations, point-to-point radios, wireless access points and cellular base stations. It is also used in precision frequency synthesis, timing devices, wireless sensors, and Automotive radar and navigation systems. With its excellent jitter performance, it is ideal for jitter-critical systems such as Ethernet receivers, Ethernet switches and PDH/SDH transmission systems.The working principle of the SIT9005ACT1D-18DB programmable oscillator is based on the oscillation of a quartz crystal embedded in the device. This oscillator is powered by a 3.3V DC voltage and has an adjustable frequency determined by the crystal load capacitance. The frequency of the oscillator can be programmed via an external capacitor of up to 50pF, enabling it to be tuned for the specific application.The SIT9005ACT1D-18DB boasts excellent stability and low jitter performance, thanks to the tight control of the primary frequency characteristics of the crystal. It is also highly robust and can withstand external shock and vibration. Its CMOS input circuitry ensures low current consumption (at 7mA max. @ 5V). Additionally, the oscillator can be subjected to frequency tuning by an external resistor in order to reduce the variation caused by static frequency and drive level.In summary, the SIT9005ACT1D-18DB oscillator is a high-performance, compact programmable oscillator suitable for space-constrained, industrial, automotive and aerospace applications. Its adjustable frequency range, high stability, low jitter and wide operating temperature range make it an ideal choice for demanding applications requiring a reliable timing source.

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