AX7PAF1-775.0693C

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Oscillators have been used in widely different applications, ranging from controlling noise level in wireless communication to timekeeping in watches or other applications. This article focuses on the AX7PAF1-775.0693C oscillator, explaining its application field and its working principle.

The AX7PAF1-775.0693C oscillator belongs to the active harmonic-mode class of oscillators, which contains sine wave, PWM and PMM oscillators. Its operating frequency ranges from 0.3 to 2.7 MHz, and its main application areas include AC power supplies, cellphones, digital TVs, BLDC motor control and other related applications. Its built-in DC control feature makes it an ideal choice for low-noise AC power supplies.

The main principle of this oscillator is to use a voltage-controlled oscillator (VCO) to generate an output frequency which is determined by an active loop in the circuit. The loop comprises a reference oscillator, a voltage-controlled oscillator, a phase comparator, and a capacitor. The reference oscillator provides a reference frequency signal, while the voltage-controlled oscillator modulates the output frequency based on the phase comparator feedback signal. The capacitor in the loop serves as a filter, providing a sinusoidal output signal.

The basic characteristics of the oscillator include a wide and smooth frequency range, fast sweep capability, low power consumption, low noise, low phase noise, accuracy, and stability. The harmonic-mode oscillator also has the advantages of low cost and high reliability. Thanks to these features and its application range, the oscillator is widely used in various applications.

In conclusion, the AX7PAF1-775.0693C oscillator is an active harmonic-mode oscillator that offers a wide and smooth frequency range and accuracy. It is primarily used in AC power supplies, cellphones, digital TVs, BLDC motor control, and other applications in which low noise and/or low power consumption are important. Its main principle of operation is to use a voltage-controlled oscillator and a feedback loop to generate a sinusoidal output signal.

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