Ultra Low Phase Noise VCXO

Advantages of Ultra Low Phase Noise VCXO

In signal and RF applications, the demand for frequency control is increasing, especially in situations requiring low phase noise and a wide operating temperature range.

The ultra low phase noise VCXO not only meets these stringent requirements but also offers excellent frequency stability and voltage control range.

Composition and Working Principle of Ultra Low Phase Noise VCXO

The ultra low phase noise VCXO mainly consists of a quartz crystal resonator, varactor diode, and oscillator circuit. Its working principle is to change the capacitance of the varactor diode by controlling the voltage, thereby "pulling" the frequency of the quartz resonator to achieve frequency modulation.

How to Correctly Select an Ultra Low Phase Noise VCXO?

Firstly, it is important to determine whether the application requires a VCXO or a general oscillator. When designers wish to adjust the oscillator's frequency range by applying a control voltage, a VCXO should be selected.

Secondly, the technical specifications of the ultra low phase noise VCXO include various performance parameters that are often interrelated. We should not blindly pursue higher values for certain parameters at the cost of deteriorating other related parameters.

For example, the frequency control range of the VCXO is limited. Generally speaking, if a large pulling range is required, the frequency stability within the operating temperature range will be poorer. Conversely, if high frequency stability is demanded, it will be difficult to achieve a large pulling range.

Why Choose XtalTQ's Ultra Low Phase Noise VCXO?

XtalTQ's ultra low phase noise VCXO offers excellent frequency stability and ultra-low phase noise, while also enhancing signal integrity. It is suitable for high-end communication equipment and can maintain signal clarity and accuracy in radar and instrumentation applications.