The difference between a programmable oscillator and an active crystal oscillator
Active crystal oscillator: A complete module integrating a quartz crystal and oscillation circuit. It directly outputs a square wave signal of a fixed frequency after power-on, requiring no external circuitry. Programmable crystal oscillator: A crystal oscillator whose output frequency can be set via programming. Users can adjust parameters such as frequency according to their needs, offering greater flexibility.
10/31
2025
The YSO233UJ series differential crystal oscillators are specifically optimized for the critical frequencies of 156.25MHz and 312.5MHz in optical modules, featuring ultra-low jitter, wide-temperature stability, and high reliability.
10/29
2025
What to do if the crystal oscillator does not oscillate
As a professional crystal oscillator manufacturer, YXC brings you a systematic, accurate and efficient "three-step positioning method" - following the logic from the outside to the inside, from easy to difficult, to help you quickly narrow the scope of investigation and accurately locate the fault direction!
10/27
2025
BMS - Why is it necessary to carry a separate RTC real-time clock chip
The RTC clock chip (YSN8563) integrates timer, alarm, clock output, accurate timestamp and other functions, providing convenience for system design and accurate fault location.
10/15
2025
Several important parameters of temperature compensated crystal oscillator
A temperature-compensated crystal oscillator (TCO) is a high-precision oscillator that adds temperature compensation to a standard active crystal oscillator. While the frequency of a standard crystal oscillator is easily affected by ambient temperature fluctuations, resulting in unstable device performance, a TCO's built-in compensation circuit automatically adjusts the oscillation frequency to offset temperature variations, providing an extremely stable frequency signal.
09/26
2025
Circuit diagram and pin diagram of active crystal oscillator
Ordinary active crystal oscillators have 4 pins. The missing corner is called pin 1 (PIN1) or pin #1. In counterclockwise order (pins facing downwards), they are 2, 3, and 4 respectively.
09/23
2025