SIT9005ACR2H-33ND

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):	6.5mA
Spread Spectrum Bandwidth:	±0.515%, Center Spread
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SIT9005
Voltage - Supply:	3.3V
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, also known as PLL Oscillators, are electronic components used to provide frequency control over a wide range of frequencies for a variety of applications. The SIT9005ACR2H-33ND Programmable Oscillator is a highly integrated device designed to serve as a frequency synthesizer for use in the radio communications sector. The oscillator combines the functions of frequency, phase, amplitude and timing control in one single package. It can generate outputs with any desired frequencies up to 13 GHz and can also be programmed to provide frequency sweeping and frequency hopping. In this article, we will discuss the various features and applications of the SIT9005ACR2H-33ND Programmable Oscillator and how it works.
Features of SIT9005ACR2H-33ND Programmable Oscillator
The SIT9005ACR2H-33ND Programmable Oscillator is designed with superior performance, size, and cost. One of the most notable features of this oscillator is its very small size and high quality performance. The oscillator is a single-chip device that has low power consumption and a power dissipation of only 16mW. It also features a wide frequency range of 1.2 – 13.0 GHz, making it suitable for use in a variety of frequency control applications. The oscillator also features a programmable frequency modulation mode, which can be used to provide frequency hopping and frequency sweeping. In addition, the oscillator also has excellent phase and amplitude control and has proven to be capable of achieving high accuracy and excellent repeatability while maintaining small size and low power consumption.
Applications of SIT9005ACR2H-33ND Programmable Oscillator
The SIT9005ACR2H-33ND Programmable Oscillator is used in a wide range of applications. It is particularly suitable for radio communication and different radio frequencies, such as SATA subsystems, GPS systems, computer networks, and satellite communication. This oscillator can be used for frequency synthesis and for providing frequency hopping, allowing it to be used in direct sequence using spread spectrum transmission systems. This oscillator is also used in the engineering fields of test and measurement, military radios, and aerospace systems. With its wide frequency range and superior performance, the SIT9005ACR2H-33ND is also used in many other applications such as global navigation systems, medical systems, and other navigation and communications-based fields.
Working Principle of SIT9005ACR2H-33ND Programmable Oscillator
The SIT9005ACR2H-33ND Programmable Oscillator is based on a Pulse Frequency Modulation (PFM) architecture. This architecture allows the oscillator to produce the desired output frequency in a very short amount of time, achieving an accuracy that is within ±20ppb (parts per billion). The oscillator is designed to work with a 45-MHz reference clock input and a 1.2 – 13.0 GHz VCO (Voltage-Controlled Oscillator). To generate the desired frequency, a programmable software-controlled logic circuit is used to compare the target frequency and the current frequency. This comparison is used to adjust the voltage on the VCO in order to generate the desired frequency. The SIT9005ACR2H-33ND is also capable of sweeping up or down the frequencies with a programmable step size.
Conclusion
The SIT9005ACR2H-33ND Programmable Oscillator is an advanced single-chip solution that is designed to provide high accuracy and repeatability while maintaining low power consumption and a small size. This oscillator is suitable for a wide range of frequency control applications, such as radio communication and different radio frequencies. It features a wide frequency range of 1.2 – 13.0 GHz and a programmable modulation mode, making it capable of providing frequency hopping and frequency sweeping. The oscillator works based on a Pulse Frequency Modulation (PFM) architecture, which allows it to achieve an accuracy that is within ±20ppb. In conclusion, the SIT9005ACR2H-33ND Programmable Oscillator is a highly integrated device that is suitable for use in a variety of applications.

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