Analysis of the reasons why the oscillation circuit does not oscillate

If a short circuit is suspected, it is recommended to use the resistance range of a multimeter for measurement. Measure the resistance across the crystal oscillator after powering off:

What is a crystal oscillator?

Crystal oscillators generally refer to quartz crystal oscillators and quartz crystal resonators, which can also be directly called crystal oscillators. Both are made using the piezoelectric effect of quartz crystals.

YXC car-grade crystal oscillator--optimal choice for car Bluetooth

Passive crystal oscillators can resist the impact of external electromagnetic interference on the car's Bluetooth module, provide clear and stable audio and data transmission, save energy and extend battery life.

How to measure the quality of crystal oscillator

There are generally two methods for crystal oscillator identification: the first is the naked eye identification method (crystal oscillator appearance identification, printed logo identification, crystal oscillator packaging style); the second is the multimeter detection method;

Two types of resistance in a crystal oscillator: feedback resistance and current limiting resistance

Two resistors are generally designed in the crystal oscillator circuit. One is connected across the two ends of the crystal oscillator, called the feedback resistor Rf; the other is connected to the output end of the IC, called the current limiting resistor RD; the capacitor connected to the crystal is called the load matching capacitor. The frequency of the oscillation circuit can be changed by adjusting the capacitance value, and these waveform frequency tests can be observed.

The difference between constant temperature crystal oscillator and temperature compensated crystal oscillator

Oven-controlled crystal oscillator: Oven-controlled crystal oscillator is abbreviated as OCXO (Oven Controlled Crystal Oscillator) Temperature-compensated crystal oscillator: Temperature-compensated crystal oscillator (TCXO), abbreviated as TCXO (Temperature Compensated Crystal Oscillator)