From DS12C887 to YSN8130: Miniaturization and low power consumption of real-time clock chips

YSN8130: Using the advanced I²C serial interface, only two signal lines are needed, and the number of pins is reduced by 90%. LGA 3.2×2.5×1.0mm ultra-miniature package, the volume is reduced by 95% compared to DS12C887

How to judge whether the crystal oscillator is oscillating

The crystal oscillator waveform is generally a sine wave or a square wave. When the output waveform is a square wave, the rising edge is generally steeper and contains more high-frequency signals.

The difference between differential crystal oscillator and passive crystal oscillator

Differential crystal oscillators use two signals with completely opposite phases to each other, thereby eliminating common-mode noise and achieving a higher-performance system. Passive crystal oscillators are essentially passive components that rely on external circuits (such as the oscillator inside the MCU) to drive them. Load capacitance and resistance must be matched for stable operation.

What is a crystal oscillator, what is it used for, and where is it used?

The crystal oscillator generates its own clock signal, which serves as a clock reference for various microprocessor chips. The crystal oscillator is equivalent to the heart of these microprocessor chips. Without the crystal oscillator, these microprocessor chips will not work.

Clock chip RTC principle introduction, crystal oscillator selection, application scenarios

Clock chips are widely used in communication equipment, consumer electronics, industrial control, automotive electronics, Internet of Things and smart home.

The difference between VCXO crystal oscillator and TCXO crystal oscillator

In many applications, we can use the DAC function of the microcontroller to control the bias voltage of the VCXO and adjust the output frequency of the VCXO.