SIT8208AC-31-33S-35.840000Y

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Oscillators

Oscillators are electronic circuits which generate an alternating waveform, typically of a sine wave, for the purpose of timing or providing a reference voltage to other circuits. Oscillators use an active device, such as a transistor, to create a feedback loop. Changes in the voltage or current of the active device create a corresponding change in the output. Oscillators have many applications in the electronic industry, from generating short-term test signals to long-term reference signals.

The SIT8208AC-31-33S-35.840000Y is an example of an oscillator that is specifically designed for Wi-Fi applications. This oscillator incorporates a PLL (phase-locked loop) frequency synthesiser and generates an output signal that is synchronised with the incoming reference signal. This makes it ideal for applications in Wi-Fi routers, USB dongles and other wireless communications devices. Additionally, its low harmonics and low phase noise makes it suitable for applications involving digital broadcasting, as well as for cellular base stations or WiMax base stations.

The SIT8208AC-31-33S-35.840000Y is also designed for high temperature operation, which makes it suitable for use in mobile terminals, such as cell phones and tablet computers. Its temperature range is -55°C to 125°C, making it an excellent solution for a variety of high-temperature applications. Additionally, it features an exceptionally low jitter, which enables greater accuracy when relative frequencies must be kept as consistent as possible.

The working principle of the SIT8208AC-31-33S-35.840000Y is based on a classic voltage-controlled oscillator (VCO) topology with a Programmable-Gain Amplifier (PGA) as its output. The oscillator consists of three sub-circuits, the Phase Frequency Detector (PFD), the 1.2GHz VCO, and the PGA. The PFD compares the reference signal to the feedback signal from the VCO, and creates a phase error signal, which is then used to adjust the VCO frequency to produce the desired output frequency. The PGA then amplifies the VCO output signal and converts it into a sine wave. This output signal can then be used in a variety of Wi-Fi applications, such as for timing and frequency synthesis.

In conclusion, the SIT8208AC-31-33S-35.840000Y oscillator is a highly specialised device, designed for use in mobile, wireless communication applications. Its high temperature range and low jitter make it an ideal choice for wireless applications that require extreme accuracy. Its PLL frequency synthesiser and low phase noise make it suitable for digital broadcasting and other cellular or WiMax applications. Additionally, its classic VCO topology and PGA output give it the ability to generate a highly-accurate output signal, which is essential for many timing and frequency synthesis applications.

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