SIT8921BM-71-XXX-000.FP0000E

Frequency Stability:	±20ppm
Height:	0.032" (0.80mm)
Size / Dimension:	0.079" L x 0.063" W (2.00mm x 1.60mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4.7mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-55°C ~ 125°C
Frequency Stability (Total):	--
Series:	SiT8921B
Voltage - Supply:	1.8V, 2.5 V ~ 3.3 V
Output:	LVCMOS
Function:	Enable/Disable, Standby
Available Frequency Range:	1MHz ~ 110MHz
Programmable Type:	Blank (User Must Program)
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Programmable Oscillators are an important class of oscillators used in many applications today. The SIT8921BM-71-XXX-000.FP0000E is one such oscillator designed to provide frequency stability and high output accuracy in a wide range of applications. This article surveys the application field and working principle of this oscillator, explaining why it is suitable in many applications.

Application Field

This oscillator is suitable for a wide range of applications including both traditional and modern digital systems. Specifically, it is used by aerospace, defense, automotive, and medical industries, as well as in industrial automation, telecommunications, and instrumentation. Its applications in digital systems are best explained by its high stability when used in frequency synthesizer circuits or in the adaption of a signal from one frequency to another. This stability also makes the oscillator suitable in the generation of voltage controlled signals where any slight shift in frequency can cause serious operations and can even lead to catastrophic failure in some cases. In addition to its applications in digital systems, it is also used in a variety of other high speed analog systems. This is because it provides very high output accuracy which is critical for systems that require accurate pulse timing. As a result, it is often used in high-frequency radios for frequency shifting, as well as in frequency sources used to generate signals of different frequencies and amplitude.

Working Principle

The working principle of the SIT8921BM-71-XXX-000.FP0000E is based on a settling technology called “Self-Trimming”. This technology works by adjusting frequency and phase of the output signal by using feedback from the output signal and continuously correcting frequency and phase errors. This allows the oscillator to have a much higher level of accuracy and stability than many other oscillators, as it not only keeps the desired frequency, but also significantly reduces jitter and phase noise. In order to achieve its high levels of accuracy and stability, the oscillator employs a number of specialized components. These components work together to allow the oscillator to quickly adjust to changing conditions and remain within the desired frequency limits.

Conclusion

The SIT8921BM-71-XXX-000.FP0000E is an example of a Programmable Oscillator, designed to provide high accuracy and stability in a wide range of applications. Its main selling point is its self-trimming technology, which allows it to maintain a high level of accuracy and stability in challenging environments, such as high speed analog systems. As a result, it is suitable for use in a broad range of applications, including digital systems and high-frequency radios.

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