SIT9120AI-1C2-25E155.520000T

Frequency Stability:	±25ppm
Current - Supply (Disable) (Max):	35mA
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.197" L x 0.126" W (5.00mm x 3.20mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	69mA
Operating Temperature:	-40°C ~ 85°C
Series:	SiT9120
Voltage - Supply:	2.5V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	155.52MHz
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators, such as SIT9120AI-1C2-25E155.520000T, are widely employed in modern electronic engineering, playing a significant role in generating various alternating signals for analog applications. With the development of integrated circuit (IC) technology, oscillators are becoming more and more compact and efficient. This article aims to illustrate the application field and working principle of the SIT9120AI-1C2-25E155.520000T oscillator.

As an electronic component of radio frequency (RF), SIT9120AI-1C2-25E155.520000T is mainly used in various communication transmission and reception circuits, such as using it as a reference signal source for frequency synthesis circuit, and as a local oscillator of transceivers. This oscillator also plays an important role in other signal processing and military circuit, which provides signal such as drive control, timing timing, and analog-to-digital conversion.

In its working principle, SIT9120AI-1C2-25E155.520000T oscillator is based on the principle of negative feedback. It is composed of an amplifier, a frequency-determining element, 1C2 gate, and a feedback loop. The amplifier includes an input stage and an output stage, and it is a linear device whose gain depends on the frequency of the input signal and the load impedance. The frequency-determining element is usually an LC parallel circuit, and its capacitance can be adjusted to obtain a certain frequency of oscillation. The 1C2 gate is responsible for controlling the feedback loop, which is formed by the feedback resistor of the two sides of its drain and source, as well as the output impedance of the amplifier and the input impedance of the 1C2 gate. The output waveform and frequency of the oscillator are controlled by the parameters chosen for the components in the feedback loop.

SIT9120AI-1C2-25E155.520000T oscillator is greatly used in hardware implementation circuits due to its easy fabrication, simple structure and low power consumption. Moreover, the negative feedback principle makes this oscillator highly tolerant to various parameter mismatches between components, and provide the oscillator with the functionality of automatic amplitude and frequency control. Consequently, the oscillator is not easily affected by external noise, and with dual-frequency output capability, the oscillator is suitable to be used in various communication systems.

In detail, the frequency range of SIT9120AI-1C2-25E155.520000T oscillator is within 155.520000 to 200 MHz. Its power supply ranges from 2.7-4.5 volts and the output power is up to 0-15 dBm. Besides, the harmonic adjacent channels of the oscillator are greatly suppressed to enable low interference operation, which suits the requirement of high fidelity communication signal system. Lastly, the device has a built-in temperature sensor, which allows the oscillator to automatically adjust its temperature output frequency over a temperature drift range of up to 70 ppm.

From the above discussion, it can be seen that SIT9120AI-1C2-25E155.520000T oscillator is an helpful integrated component for modern electronic engineering, which can provide quality signals for various communication and signal processing applications. With the advantages of easy fabrication, excellent performance, and high stability, the oscillator shall continue to contribute to the development of many intelligent systems in the future.

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