SIT9005ACU2H-30NC

Programmable oscillators are devices that generate a variety of waveforms at predetermined frequencies. They are used in a wide range of applications, such as frequency synthesizers, radio communications, and various audio-based designs. One example is the SIT9005ACU2H-30NC Programmable Oscillator, which is designed to replace many dedicated crystal oscillators and fixed frequency oscillators with one device.

SIT9005ACU2H-30NC Application Field

The application fields for this particular oscillator are aimed at communication systems that require a precise, low-jitter clock signal. This oscillator is best suited for systems such as universal serial bus (USB) clocks, internet protocol (IP) clock generation, chipset clocking, clock multiplication and distribution, and wide area network (WAN) interfaces. Other potential applications include cellular base stations, time division multiplex (TDM) networks, and wide-reaching broadcasting systems.

Working Principle

The SIT9005ACU2H-30NC is a low-voltage programmable oscillator (LVPO) designed around advanced diamond oscillator and proprietary digital control techniques. The oscillator is designed to output clock signals with a remarkable frequency accuracy and reasonably low jitter. These high-quality signals can in turn be used as reference frequencies in further applications.

The programmable clock generator is based around two components: a digital core and an analog core. The digital core is responsible for setting up, controlling and maintaining the oscillator’s output circuitry. This is achieved by gathering input from the user and converting the data into a signal the analog core can interpret. The analog core, on the other hand, consists of a diamond oscillator, phase locked loops (PLLs) and voltage controlled oscillators (VCOs), which is responsible for producing the desired clock signal and maintaining it.

The output frequency is configured with an industry standard two-wire serial interface, such as I2C or SPI. This method allows for many operating parameters to be adjusted, allowing for complex harmonic and signal frequencies to be generated easily and quickly. Additionally, reliable VCO output signals are made possible by using both a low voltage control voltage (VCV) and feedback signal that control the output signal\'s frequency and duty cycle.

Advantages

The SIT9005ACU2H-30NC is a versatile programmable oscillator designed to output a wide range of frequencies, ranging from 8.000MHz up to 200.000MHz. Furthermore, its various programmable features and customization capabilities make it suitable for different kinds of usage environments. Most notably, the device is capable of generating clock signals with a frequency accuracy of about ± 0.3% oscillator lock stability in all static conditions. This oscillator also has a phase noise of -130dBc/Hz @ 10KHz.

The SIT9005ACU2H-30NC also supports an up to 8.192MHz start up time. With a very small device package size of a mere 2mm x 3mm, it is an incredibly space-saving solution. Furthermore, the oscillator itself requires little to no external components, making it a plug-and-play component. It is also extremely power efficient, having a typical supply current of around 3mA.

Conclusion

The SIT9005ACU2H-30NC is a versatile programmable oscillator designed for use in a wide range of applications. It is capable of providing reliable, high-quality clock signals with very low jitter, excellent frequency accuracy, and superb phase noise. With a very small device package size, little to no external components, and low power consumption, this oscillator is a very cost-effective solution that can easily be implemented into many different applications.