Frequency Stability:	±20ppm, ±25ppm, ±50ppm
Height:	0.030" (0.76mm)
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):	5.5mA
Spread Spectrum Bandwidth:	-2.36%, 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 are oscillators that allow users to program the frequency, phase and other characteristics of the oscillator\'s output. Oscillators are often used in radio, television and communications systems. The SIT9005ACR2G-18NI is a type of programmable oscillator that provides a highly accurate and wide frequency output from 1 Hz to 10 GHz with low phase noise and low jitter.

SIT9005ACR2G-18NI Application Field

The SIT9005ACR2G-18NI can be used for many different applications. Its low phase noise, wide frequency output range, and attractive pricing point make it an attractive choice for various applications. These include but are not limited to Wi-Fi and Bluetooth transceivers, instrumentation, tracking and ranging systems, cellular base stations, defense and aerospace systems, satellite navigation systems, and telecommunication systems.

Features of the SIT9005ACR2G-18NI

The SIT9005ACR2G-18NI is a programmable oscillator that features a frequency range of 1 Hz to 10 GHz, a low phase noise of -155 dBc/Hz at 10 GHz, a single low-noise output, and an attractive pricing point. The device features a user-programmable phase-locked loop (PLL) architecture, which enables users to program the center frequency and other parameters of the oscillator. The device also offers a wide temperature range from -40 °C to +125 °C, and low power consumption of 1.2 watts.

Working Principle of the SIT9005ACR2G-18NI

The SIT9005ACR2G-18NI uses a phase-locked loop (PLL) architecture to generate a stable and accurate frequency output. This PLL architecture consists of a voltage-controlled oscillator (VCO), a phase frequency detector (PFD), and other components. The VCO is used to create the desired output frequency, which is then compared with the reference frequency in the PFD. If the two frequencies are the same, they are said to be “locked” and the PLL maintains the output frequency of the VCO. The PFD then sends an error signal to the voltage-controlled filter (VCF) in order to reduce any difference between the two frequencies. The VCF then filters out any spurious noise and other disturbances, thus improving the accuracy and stability of the output frequency. The device also features a low-noise amplifier (LNA) which is used to amplify the signal before it is sent to the output.

Conclusion

The SIT9005ACR2G-18NI is a programmable oscillator designed to produce a highly accurate and wide frequency output from 1 Hz to 10 GHz. It provides low phase noise, low jitter, wide temperature range, and low power consumption. The device uses a phase-locked loop (PLL) architecture to generate a stable and accurate frequency output. It is an attractive choice for applications such as Wi-Fi and Bluetooth transceivers, instrumentation, tracking and ranging systems, cellular base stations, defense and aerospace systems, satellite navigation systems, and telecommunication systems.

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