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Oscillators

Oscillators are electronic components that generate periodic signals with or without external input signals. Applications of oscillators include frequency synthesis, generation of signals for communication systems, precision timekeeping, and stabilization of power supplied to a system or network. Oscillators are usually classified by their operating frequencies, ranges of frequency outputs, and other features, such as resistive output stability, phase control, and operating temperature.

PXF620013 Application Field and Working Principle

The PXF620013 is a high-performance PXF oscillator designed to provide precision timing solutions for a wide range of applications. This oscillator features a frequency range of 8 to 40 MHz, an output impedance of 1.2KΩ, a low-jitter amplitude of 3.5 mV max, and a typical phase-lock loop (PLL) phase noise of -100 dBc/Hz at a 10 kHz offset from the carrier. The PXF620013 is designed to consume minimal power while producing superior performance.

The PXF620013 working principle is driven by a combination of a frequency-locked loop (FLL) and a voltage-controlled oscillator (VCO). A FLL employs a digital Voltage-Controlled Oscillator (VCO), which is set by a programmed frequency parameter to achieve optimal performance in the desired frequency range. The digital oscillator is then coupled with a temperature-compensated crystal oscillator (TCXO) providing additional stability and accuracy characteristics. The TCXO monitors the spring reference frequency and adjusts the VCO output to maintain it. Finally, an on-chip phase-lock loop (PLL) is used to compare the phase of the output signal with the reference signal. The PLL then adjusts the voltage of the VCO to ensure the phase is synchronized with the reference signal.

The PXF620013 can be used in a wide range of applications, such as frequency synthesis, phase-locked loop (PLL) and delay-locked loop (DLL) designs, clock and data recovery circuits, telecom, automotive electronics, and alternative power sources. It is also ideal for applications that require stable frequencies, such as mobile communications, digital audio and video, industrial automation, and consumer electronics.

The PXF620013 oscillator is a great solution for applications requiring consistent signal performance and superior phase noise rejection. It is small in size, low in power consumption, and capable of providing highly accurate frequency synchronization. The PXF620013 oscillator offers excellent performance over temperature, maximizing timekeeping accuracy and long-term stability.

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