SIT8209AC-G3-33E-133.333330X

Oscillators

Oscillators are electronic circuits that generate a periodic, oscillating electronic signal. They are utilized in a wide range of electronic devices from computers to cell phones and control systems. The SIT8209AC-G3-33E-133.333330X is a precision oscillator designed for use in communication and electronic equipment.

Application Field

The SIT8209AC-G3-33E-133.333330X is an ultra-low jitter PLL clock oscillator, designed for utilization in precision communication and telecom systems. It features exceptional frequency stability, excellent symmetric rise and fall time characteristics and low additive phase jitter. Its primary application field involves embedded systems requiring high-precision clock oscillation. These include DSLAMs, GbE/10GbE/25GbE/40GbE/100GbE LAN, Video over IP, Voice over IP systems, radio transmitting systems, as well as various PCI Express and ATA applications.

Working Principle

The SIT8209AC-G3-33E-133.333330X uses an internal voltage controlled crystal oscillator (VCXO), with an integrated PLL. This circuit utilizes a quartz crystal as its precise frequency reference, along with a voltage-controlled mechanism to adjust the frequency frequency without significant drift. The PLL section then multiplies the frequency as required by the external device. It also features a precise and repeatable trimming function (TRIM) that allows for precise frequency tuning. This trimming function can be accessed by utilizing the on-board serial specific bus (SMBus).

The target frequency can be directly supplied to the oscillator using an external supply and a digital-to-analog converter. Together, these components form a phase locked loop that ensures a precise frequency. The device also has an internal temperature compensation system, which amplifies the clock output as temperatures rise and lowers it with decreasing temperatures. This further enhances the accuracy and frequency stability of the device in various operating environments.

The SIT8209AC-G3-33E-133.333330X also features power saving capabilities. Its power consumption stays within an acceptable range at most operating temperatures, allowing for improved power efficiency when compared to other oscillators. This makes it ideal for battery-powered applications as well.

Conclusion

The SIT8209AC-G3-33E-133.333330X is an ultra-low jitter PLL oscillator designed for precision communication and telecom applications. It is equipped with a voltage controlled crystal oscillator, a PLL section and a precise trimming function. It also features excellent frequency stability, power saving capabilities and high tolerance to temperature changes. All these features make the SIT8209AC-G3-33E-133.333330X an ideal choice for embedded systems requiring high-precision clock oscillation.