SIT8208AC-3F-28E-66.000000Y

Oscillators are electrical circuits used to generate an alternating output signal at a desired frequency and amplitude. SIT8208AC-3F-28E-66.000000Y is an integrated oscillator with Voltage-Controlled Crystal Oscillator (VCXO) technology, designed to provide excellent frequency stability with low EMI. It can meet different application requirements in consumer and industrial applications.

Application Field

SIT8208AC-3F-28E-66.000000Y is widely used in timely critical applications. It offers excellent stop frequency stability and long-term frequency stability, with only ±0.5 ppm deviation over a temperature range of 0 to 70°C. With better shock resistance and EMI performance, it is best suited for applications such as advanced computer and communication systems, security equipment, SDH equipment, mobile communications, and automotive systems. Additionally, the excellent signal characteristics of SIT8208AC-3F-28E-66.000000Y make it an ideal choice for high-speed interfaces such as USB 3.0,SATA 3.0 and Ethernet.

Working Principle

SIT8208AC-3F-28E-66.000000Y is a voltage-controlled crystal oscillator (VCXO) based on the PLL circuit principle. The basic components of the oscillator include the voltage-controlled crystal (VCXO), a phase-locked loop (PLL) circuit and a frequency synthesizer. The VCXO is the oscillator core which requires a control voltage for frequency adjustment. The PLL circuit is used to ensure that the desired frequency outputs, and the frequency synthesizer is used to obtain the desired frequency through processing.

In operation, a signal is first generated from the VCXO and is then compared with the reference frequency. The comparison result is used to control the charge pump for adjusting the VCXO frequency. During this process, the combination of the VCO and the loop filter forms a PLL circuit that controls the output to the frequency of the reference signal. Finally, the frequency synthesizer is used to complete the frequency adjustment.

SIT8208AC-3F-28E-66.000000Y is extremely reliable and efficient in providing high-precision frequency stability, with low EMI, excellent shock resistance, and superior signal characteristics. It is the perfect choice for timely critical applications that require precision, high-speed data transmission.