SIT3822AC-1B-33NE

Frequency Stability:	±10ppm
Height:	0.031" (0.79mm)
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	69mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-20°C ~ 70°C
Frequency Stability (Total):	--
Series:	SiT3822
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	--
Available Frequency Range:	220MHz ~ 625MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	VCXO
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Bulk

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Introduction

Programmable oscillators, also known as digitally controlled oscillators (DCOs), are useful devices for many applications. They provide an adjustable solution for use in a wide range of circuit designs and are popular for their accurate tuning, high oscillation stability and low phase noise. The SIT3822AC-1B-33NE is a programmable oscillator designed to meet the most demanding requirements, offering high precision and low power consumption. This article explores the application field and working principle of the SIT3822AC-1B-33NE.

Application Field

The SIT3822AC-1B-33NE is an ideal programmable oscillator for use in a variety of applications. It can be used in a wide range of communication systems, including cellular, Bluetooth and Wi-Fi networks. Its low jitter, reliable frequency stability and outstanding stability over temperature and voltage make it suitable for applications such as satellite communication, aerospace navigation system, medical and automotive applications. The SIT3822AC-1B-33NE is also an ideal solution for broadcast UHF, audio/video recognition, public security and optical etc.

Working Principle

The SIT3822AC-1B-33NE programmable oscillator is based on a design that integrates a frequency control logicPLL frequency synthesizer and a dual frequency crystal resonator in a single package. The crystal oscillator is usually composed of two capacitors and two inductors. The combination of these two components forms an LC oscillator, which vibrates at a resonance frequency determined by the capacitors and inductors. The frequency of the oscillator can be tuned by adjusting the capacitors and inductors.The SIT3822AC-1B-33NE programmable oscillator uses a PLL frequency synthesizer to control the oscillation frequency with a high degree of accuracy. The PLL works by comparing the output frequency of the oscillator with a reference frequency to generate an error signal. This error signal is fed back to the oscillator and makes it oscillate at the desired frequency. The PLL controls the oscillator to react quickly to changes in the reference frequency and maintain the output frequency with a high degree of accuracy.The SIT3822AC-1B-33NE also includes a temperature compensated integrated circuit that helps to maintain a consistent frequency over a wide range of temperatures. This ensures that the oscillator performs reliably in all environmental conditions. The SIT3822AC-1B-33NE is also designed to minimize the phase noise and harmonics in the output signal to reduce interference between different frequencies.

Conclusion

The SIT3822AC-1B-33NE programmable oscillator is a reliable and efficient solution for many applications. It has a wide frequency range, low power consumption, and high stability over voltage and temperature. It also has low jitter and outstanding frequency stability. This makes it suitable for use in communication systems, aerospace navigation, medical, automotive and broadcast applications. The combination of a PLL frequency synthesizer and temperature compensation ensures accurate frequency control with low noise and harmonics.

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