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Oscillators

XLH530220.000000I (also referred to as the "XLH") is an oscillator designed for radio communication applications, such as wireless microphone systems, mobile phone networks and satellites. The oscillator is a crystal-controlled device, meaning it is based on a quartz crystal oscillator and regulated by a capacitor and an inductor. The device also includes a temperature flux correction circuit to compensate for drift and ensure accurate frequency output.

The XLH features an extremely wide frequency range of 530 to 2200 MHz and a 0.5V power consumption, making it very power efficient. This range also makes it very versatile and suitable for a wide range of applications. Additionally, the frequency stability of the device is excellent, with a maximum tolerance of ±50ppm over different operating temperatures.

Working Principle

The XLH530220.000000I operates on the same principle as other crystal oscillators. A quartz crystal is cut with a specific resonance frequency. An alternating voltage at this frequency is applied to the crystal and it will then oscillate at this frequency. However, this oscillation may be unstable, due to environmental conditions such as temperature and humidity. To solve this problem, the device includes an compensation circuit comprising a capacitor and an inductor, which regulates the quartz crystal frequency and ensures stability.

The quartz crystal is connected to the feedback circuit, and the output of this circuit is connected to the input of a voltage-controlled oscillator (VCO). The VCO operates in a similar manner to the quartz crystal, but can change its output frequency in response to changes in the voltage applied to it. This is done by varying the capacitance on the VCO\'s output, which affects the VCO\'s frequency.

Finally, the output from the VCO is fed back to the quartz crystal, ensuring it oscillates at the same frequency as the VCO. This process is referred to as voltage-controlled oscillation, and it serves to both regulate the frequency of the quartz crystal and ensure the frequency output of the device is accurate and stable, even in changing environmental conditions.

Applications

The XLH530220.000000I is most commonly used in radio communication applications, such as wireless microphone systems, mobile phone networks and satellites. The wide frequency range of the device makes it an ideal choice for these types of applications, as it allows for a high degree of flexibility. Additionally, the excellent frequency stability ensures the output of the device stays accurate and stable.

The device is also well-suited to low-power applications, such as internet-of-things (IoT) and wearable devices, due to its low power consumption. Additionally, its small size of 15.9 x 7.8mm makes it perfect for portable and space-constrained applications.

Conclusion

The XLH530220.000000I is an oscillator designed for radio communications applications, with an extremely wide frequency range of 530 to 2200 MHz and an impressive frequency stability of ±50ppm over different operating temperatures. The device is well-suited to low-power applications due to its low power consumption, and its small size makes it suitable for space-constrained applications. As such, it is an excellent choice for radio communication applications such as wireless microphones and mobile phone networks.

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