2023-05-05

关于造成晶振频偏超差的原因，晶诺威科技归纳四点如下： 晶振本身电气参数不稳定 晶振的品质因子（Q值）和频率稳定性系数（Δf/f）是影响频率偏差的主要参数。低品质的晶振容易产生较大的频率偏差。 晶振工作环境因素 温度、湿度、气压等环境因素会影响晶体的机械特性，从而导致频率偏差。其中，温度是最主要的影响…

2023-03-29

关于晶体振荡器的时钟精度(Clock Accuracy)，说明如下： 时钟精度是衡量理论频率值和实际采样频率值之间差异的一个指标。通常情况下，工程师用“百万分之一”（ppm）来表示频率精度,同时至少还要加上一个工作温度范围。如： 工作温度(Operating Temperature Range)：-…

2023-02-17

What is Nominal Frequency of a Crystal Oscillator? 什么是晶体振荡器的标称频率？ The nominal frequency of the crystal oscillator is the output frequency of the oscil…

2023-02-14

The 8 Most Important (and Fundamental) Oscillator Parameters 关于晶体振荡器的八个最基本电气参数 What is the first thing you think of when selecting electronic componen…

2023-02-09

如何提高晶振输出的频率精度？晶诺威科技解释如下： 首先，晶振分为无源晶振（晶体谐振器）和有源晶振（晶体振荡器）两种。无源晶振的输出频率精度可微调，而有源晶振的频率输出精度不可调。 通常，晶振输出的时钟精度是由其本身频率精度所决定，外部条件的改变并不能大幅度提高晶振输出频率精度，一般要更换更高精度的晶…

2023-02-06

  Question: Hello, I have a question! Which values are better in terms frequency stability? Higher or lower? Comparing a 0.5ppm to a 1.5ppm? 你好，我…

2023-02-03

Frequency stability represents the variation of output frequency of a crystal oscillator due to external conditions like temperature variation, voltag…

2023-01-28

Quartz crystal resonators and oscillators are used in a wide range of electronic applications that require timing devices. The quality of the quartz c…

2023-01-11

The resonant frequency of the crystal remains very stable because it is primarily determined by the physical size. Its stability is in the order of a …

2023-01-09

When your alarm goes off in the morning, you get out of bed and start getting ready for the day. In addition, clock quartz is already the most typical…