SIT8008AIU8-18E

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Programmable Oscillators are oscillators whose frequency, temperature, and performance characteristics can be adjusted. SIT8008AIU8-18E, as one of the Programmable Oscillators, is widely used in a variety of applications and has working principles that should be understood. Let’s have a look at SIT8008AIU8-18E application field and working principle in detail.

Application Field of SIT8008AIU8-18E

Oscillators are thus electronic components that enable transformation of electrical signals and stimulate those. They are used to provide input signals from the microcontroller, to produce clocks and enable interfacing with analog devices and RF devices. And due to its excellent features, the SIT8008AIU8-18E oscillators are widely used for various applications. Here are some applications of the SIT8008AIU8-18E oscillators.

• Clock generator circuits for digital computing and communication devices.
• Network synchronization circuits.
• Timer circuits for digital devices.
• Consumer electronics such as PCs, HDDs, monitors, and communication devices.

Working Principle of SIT8008AIU8-18E

The working principle of SIT8008AIU8-18E can be divided into two parts – frequency control and temperature control.

Frequency Control

The working principle of the SIT8008AIU8-18E oscillator as a frequency control element is based on the principle of a “Voltage Controlled Oscillator” (VCO). In this type of oscillator, the control voltage (VCC) is the frequency control input, and the oscillator provides the output waveform at the frequency specified by the user. The output is typically set by the voltage across a resistor on the frequency control pin. The SIT8008AIU8-18E frequency control can be performed at two-wire mode (TWI) or four-wire mode (FWI). The two-wire mode is suitable for application where the frequency is slightly affecting the system performance; the four-wire mode is suitable for applications where the frequency is significantly affecting the system performance.

Temperature Control

The SIT8008AIU8-18E can also be used as a temperature control element. As temperature affects the stability of oscillator frequency and waveform, it must be compensated for accordingly. To do so, a temperature compensation circuit is implemented to continuously adjust the oscillator frequency according to the temperature of the oscillator. The temperature compensation circuit consists of a temperature sensing element, an amplifier, and a frequency control element. The temperature sensing element is usually a thermistor or a temperature-sensing IC, which is connected to the amplifier. The output of the amplifier is then connected to the frequency control terminal of the oscillator, and the amplifier controls the oscillator frequency according to the temperature change. In this way, the oscillator frequency is automatically adjusted to compensate for temperature changes.

Conclusion

To conclude, SIT8008AIU8-18E is an oscillator with excellent features and wide applications, allowing for frequency and temperature control. Frequency control is done using a two- or four-wire mode, depending on the application, while temperature control is done through the implementation of a temperature compensation circuit. The working principle of SIT8008AIU8-18E oscillator should be fully understood in order to ensure its proper functioning.

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