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.

Tips for crystal oscillator circuit design, essential skills for engineers!

As an indispensable signal transmitter in the clock circuit, the crystal oscillator is needed for the microcontroller to operate normally. Therefore, the participation of crystal oscillators is also indispensable in the design of electronic circuits. A good crystal oscillator circuit design can provide the best space utilization for electronics and play the greatest functional role.

BK Precision frequency meter uses YXC crystal oscillator YSX321SL and HC-49US

Today we disassembled a BK Precision frequency meter made in the United States, model 1856D, 3.5GHZ bandwidth, LED display can provide up to 9 digits of resolution. The high precision and high sensitivity of the frequency meter are widely used in laboratories and frequency test equipment.

Does a passive crystal oscillator have a direction?

Passive crystal oscillators have no direction, and their pins have no positive or negative polarity.

Crystal Oscillator PPM Error Analysis and Calculation Method

Crystal oscillator accuracy is usually measured in PPM (Parts Per Million), which describes the frequency stability or deviation of a crystal oscillator. PPM represents the relative error between the actual output frequency and the nominal frequency, and is an important parameter for measuring the frequency accuracy of a crystal oscillator.

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.