Precise clock, stable core: ±0.05PPM high-precision temperature-compensated crystal oscillator

Capacitor matching for passive crystal oscillators

Matching capacitors are not absolute or fixed values. It is generally best to choose two identical capacitors for matching capacitors of passive crystal oscillators. In many design schemes, commonly used capacitors are 12pF, 15pF, 22pPF, 33pF, etc., which are roughly on the order of 20pF.

Is the crystal oscillator connected to the digital ground or the analog ground?

The digital ground and analog ground affect each other not because one is called digital and the other is called analog, but because they use the same elevator: ground, and the shaft used by this elevator is the ground wire laid on the PCB.

The difference between voltage-controlled temperature-compensated crystal oscillator and temperature-compensated crystal oscillator

A voltage-controlled temperature-compensated crystal oscillator (VC-TCXO) can replace a temperature-compensated crystal oscillator (TCXO) in some cases, but the decision depends on the specific application requirements. The following is an analysis of key factors:

YXC Yangxing: RTC full series products debut

The core functions of RTC include precise timing and calendar management, time retention after power outages, timestamps, and alarm/timer functions. These features make it widely used in smart water and electricity meters, computers, smart homes, industrial control, and other electronic devices that require precise time recording and synchronization.

Crystal Oscillator Names (Part 2)

This article is the second installment and covers the following topics:Resonant Frequency，Crystal Oscillator Terminology