Series:	SiT3821
Packaging:	Tape & Reel (TR)
Part Status:	Active
Base Resonator:	MEMS
Type:	VCXO
Programmable Type:	Blank (User Must Program)
Available Frequency Range:	1MHz ~ 220MHz
Function:	Enable/Disable, Standby
Output:	LVDS
Voltage - Supply:	2.5V, 3.3V
Frequency Stability:	±25ppm
Frequency Stability (Total):	±25ppm
Operating Temperature:	-40°C ~ 85°C
Spread Spectrum Bandwidth:	--
Current - Supply (Max):	55mA
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	6-SMD, No Lead
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Height:	0.039" (1.00mm)

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Programmable Oscillators

Introduction

Programmable Oscillators (POs) are a type of electrical component used to provide a steady supply of oscillating waveforms at user-defined frequencies. POs are extremely versatile devices, used in a wide range of applications such as communications, automotive, aerospace, and data acquisition. Additionally, they can also provide exact timing control for slow timing circuits, as well as high performance systems. This article will discuss the application field and working principle of the SIT3821AI-2D2-XXXX000.FP0000X PO in detail.

Application of SIT3821AI-2D2-XXXX000.FP0000X Programmable Oscillator

The SIT3821AI-2D2-XXXX000.FP0000X PO offers reliable performance and is suitable for use in various applications such as automotive, communication, test, IoT, and military. It is designed to generate exact and stable timing signals with minimum jitter in a precise and repeatable manner. As such, it is ideal for applications that require accurate clock signals, such as wireless communications, data acquisition, and control systems.

Working Principle of SIT3821AI-2D2-XXXX000.FP0000X Programmable Oscillator

The SIT3821AI-2D2-XXXX000.FP0000X Programmable Oscillator is an electronic device that uses a combination of integrated circuits (ICs) combined with a quartz crystal to generate precise and stable clock signals. The quartz crystal is the main component of a PO, acting as a resonator to define the frequency of the generated signal. The crystal is then connected to a pair of driver ICs, which amplify the signal before it is output. The output signal is then further controlled by the ICs for adjustments, as well as for applications such as short pulse duration and wide frequency range modulation. To ensure precise and accurate performance, the ICs of the SIT3821AI-2D2-XXXX000.FP0000X access an internal EEPROM to store the clock settings and frequency calibration data. Furthermore, this data is updated regularly to minimize frequency drift errors due to temperature fluctuations or other external conditions. Additionally, the ICs are equipped with several safety features to prevent damage to the crystal and circuitry, as well as to limit current draw.

Conclusion

The SIT3821AI-2D2-XXXX000.FP0000X Programmable Oscillator is an example of a high-precision and reliable oscillator, suitable for applications within the automotive, communication, and test industries. Its combination of robust crystals, precise ICs, and numerous safety features provides accurate and repeatable frequencies, ideal for use in high precision systems and applications.

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