SIT8208AI-31-25E-16.000000T

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Oscillators are electronic components essential in many electronic systems. The SIT8208AI-31-25E-16.000000T(hereinafter referred to as SIT8208)is such a kind of component. SIT8208 has a wide range of applications and its working principle is easier to understand.

SIT8208 is primarily designed for the 3.3V semiconductor microprocessor and peripheral devices. It effectively solves the clock stability problems caused from the frequency shift due to the noise, temperature, aging and power supply voltage variations. Its frequency characteristics such as start-up time, frequency tuning range and output amplitude are also superior. The frequency stability of SIT8208 can reach better than ±2 × 10-6 or better within the temperature range of 0~70° C. Additionally, the load stability of SIT8208 is also very high, with a maximum of 80mV change in crystal oscillator frequency (10MHz) when load capacitors vary from 0~20pF.

Not only suitable for the 3.3V semiconductor microprocessors and peripheral devices, SIT8208 is also suitable for both 5V logic circuits and 3.3V logic circuits. Its built-in loop frequency tuning function and EEPROM enable SIT8208 to enhance its frequency stability and deliver a high frequency accuracy. Different frequency and output voltage needs can be satisfied by the different source of crystal oscillator offered by SIT8208.

SIT8208\'s working principle is based on the crystal oscillator circuit, commonly known as the piezoelectric oscillator. A crystal oscillator is an electronic oscillator circuit that uses the piezoelectric effect of certain crystals. When an electric charge is applied to the crystal, the crystal distorts due to the piezoelectric effect, and when the exact same charge is retrieved, the crystal will display a very large mechanical resonance. This resonance occurs at a fixed frequency, known as the frequency of oscillation or the resonant frequency, which depends on factors such as the size, shape and crystal orientation. In SIT8208, its oscillation frequency is set by the value of an external capacitor and resistor.

SIT8208 can also prevent frequency disturbances from isolation in several ways. First of all, the circuitry of SIT8208 is designed to be insensitive to changes in temperature, power supply voltage, and load capacitance. Secondly, the built-in loop frequency tuning function and EEPROM further enables SIT8208 to detect, capture and store oscillation frequencies, eliminating the influence of electromagnetic interference. Lastly, the noise of the SIT8208 is minimized through the integration of compatible on-chip resources such as high-performance active filters, signal conditioners and adaptive noise cancellation circuitry.

In a nutshell, SIT8208 is an oscillator suitable for 3.3V semiconductor microprocessors and peripheral devices. Its built-in loop frequency tuning function and EEPROM provide it with resilience to frequency disturbances from isolation. Its modest but effective working principle is based on the crystal oscillator circuit.

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