SIT8008AIT8-30E

Frequency Stability:	±20ppm
Current - Supply (Disable) (Max):	4mA
Height:	0.039" (1.00mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	4.5mA
Spread Spectrum Bandwidth:	--
Operating Temperature:	-40°C ~ 85°C
Frequency Stability (Total):	--
Series:	SiT8008
Voltage - Supply:	3V
Output:	HCMOS, LVCMOS
Function:	Enable/Disable
Available Frequency Range:	1MHz ~ 110MHz
Programmable Type:	Programmed by Digi-Key (Enter your frequency in Web Order Notes)
Type:	XO (Standard)
Base Resonator:	MEMS
Part Status:	Active
Packaging:	Bulk

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Programmable Oscillators: SIT8008AIT8-30E Application Field and Working Principle

Programmable oscillators are oscillator circuits that allow users to adjust the output frequency. This is incredibly useful in electronic engineering, allowing precise control over frequencies that are required in digital communication. The SIT8008AIT8-30E is a programmable oscillator that can be used in applications that need precise frequency control. This article will discuss the application field and working principle of the SIT8008AIT8-30E programmable oscillator.The SIT8008AIT8-30E is a highly integrated device with both a high frequency and low frequency oscillator. Its oscillator circuit is implemented using automatic frequency control (AFC) and temperature compensation. The frequency of oscillation can be adjusted in 3 kHz steps from 10 kHz to 30 MHz by varying the voltage. The oscillator also has a low current consumption of 0.27 μA and a start-up time of only 50 ns.The SIT8008AIT8-30E programmable oscillator can be used in a variety of applications. It is suitable for use in high-frequency systems such as frequency synthesizers, variable frequency oscillators (VFOs), and frequency synthesizer locks. It is also ideal for measurement and control systems that require precise frequency control. Additionally, it is suitable for digital communications applications such as SDH, SONET, and cellular base station systems.The SIT8008AIT8-30E works by using its AFC circuit to self-adjust the frequency of oscillation. This circuit consists of an amplifier with an input capacitor C1, an AFC resistor R1, a feedback capacitor C2, and a trimmer capacitor C3. The amplifier amplifies the oscillating signal and feeds it back through the AFC resistor, adjusting the frequency of oscillation based on the feedback resistance and capacitor. The frequency of oscillation is then further adjusted with the trimmer capacitor C3 according to the voltage level. The SIT8008AIT8-30E also features temperature compensation to ensure a stable frequency of oscillation even in changing temperature conditions. The temperature compensation circuit consists of a transistor, a voltage reference, and a temperature sensor. The voltage reference provides a stable voltage to the transistor which is then compared to the output of the temperature sensor. The transistor then adjusts the frequency of oscillation accordingly to maintain a stable frequency of oscillation.To sum up, the SIT8008AIT8-30E is a programmable oscillator that allows users to adjust its output frequency in 3 kHz steps from 10 kHz to 30 MHz. This makes it suitable for use in applications such as frequency synthesizers, VFOs, frequency synthesizer locks, measurement and control systems, and digital communication systems. Additionally, it utilizes an AFC circuit and temperature compensation to ensure a stable output frequency even in changing temperature conditions.

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