The precise pulse of low-altitude economy - crystal oscillator

Low-altitude economic aircraft equipment, such as drones and electric vertical take-off and landing aircraft (eVTOL), need to maintain high stability and accuracy under changing climate and temperature conditions. The temperature-compensated crystal oscillator can reduce the impact of ambient temperature changes on the oscillation frequency through the built-in temperature compensation circuit, thereby ensuring that the device can provide a stable frequency reference signal at different temperatures.

How capacitors and resistors work with crystal oscillators

The matching capacitor of the crystal oscillator can be simply called "load capacitor". Imagine that this load capacitor is like a little assistant of the crystal oscillator, helping the crystal oscillator to start working.

Passive crystal classification and important parameters explanation

Equivalent model of crystal oscillator circuit: Quartz crystal is a piezoelectric device that can convert electrical energy and mechanical energy into each other. The energy conversion occurs at the resonant frequency point.

What are the common cutting processes for crystal oscillators

It is to cut at a certain angle to the crystal coordinate axis. There are many types of cuts. Because quartz is anisotropic, different cuts have different physical properties.

Crystal resonator structure

The crystal in the crystal resonator refers to quartz crystal, and its chemical formula is silicon dioxide SiO2. The characteristics of quartz are: small thermal expansion coefficient, high Q value, insulation, etc.

There are two main types of crystal oscillators: active crystal oscillators and passive crystal oscillators

Generally, crystal oscillators are divided into two types: active crystal oscillators and passive crystal oscillators. Active crystal oscillators are also called crystal oscillators, Oscillators; Passive crystal oscillators are also called passive crystals, Crystal, crystal resonators.