Application of crystal oscillator in "smart three meters"

Crystal oscillators can send stable and accurate clock signals, and play an important role in the circuit design of "smart three meters" (MCU, analog-to-digital conversion module, transmission module, etc.), ensuring the accuracy of data and the synchronization of communication. For example, the real-time clock RTC module must be equipped with a 32.768KHz crystal oscillator; the MCU main control module is generally equipped with 24MHz, 24.576MHz crystal oscillators, etc.

What does 30pf mean?

The crystal oscillator 30PF refers to the external capacitor 30PF. Generally, the maximum load capacitance option for a passive crystal oscillator is 20PF.

The crystal oscillator startup time is too long, hardware & software can be optimized together like this!

Use high-precision temperature-compensated crystal oscillators (TCXOs), which not only have better temperature stability, but also usually have shorter start-up times.

Passive crystal oscillator selection

As an important component of the clock circuit, the performance of the passive crystal oscillator directly affects the stability and accuracy of the entire system. The passive crystal oscillator itself does not have an internal oscillation circuit and relies on an external circuit to generate oscillation. Therefore, choosing a suitable crystal oscillator and ensuring that its parameters match the circuit are the key to achieving efficient and stable operation. The following are several main parameters that affect the performance of the passive crystal oscillator:

YXC crystal oscillator solutions help industrial camera applications

In each module of an industrial camera, the crystal oscillator (Crystal Oscillator) provides an accurate clock signal, which is mainly used to ensure that each part of the system can operate synchronously and ensure the stability and correct processing of the signal. Different modules have different requirements for the frequency, accuracy, temperature stability and other parameters of the crystal oscillator.

The difference between active crystal oscillators and passive crystal oscillators

Passive crystal oscillators are mainly used in low-cost communication equipment, toys and small electronic products; active crystal oscillators are mainly used in audio and video equipment, industrial automation and control equipment, etc. The difference between active crystal oscillators and passive crystal oscillators is shown in the table below: