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温补晶振与压控温补晶振之区别
2023-02-04温补晶振TCXO 指的是直接补偿式石英晶体振荡器,是由热敏电阻和阻容元件组成的温度补偿电路,在振荡器中与石英晶片串联而成。 压控温补晶振VC-TCXO 指的是间接补偿式石英晶体振荡器,通过石英晶片串联电容量的变化,对石英晶片的非线性频率漂移进行补偿。 温补晶振与压控温补晶振都属于有源晶振。 常规尺寸… -
什么是晶体振荡器的频率稳定度(Frequency stability)?
2023-02-03Frequency stability represents the variation of output frequency of a crystal oscillator due to external conditions like temperature variation, voltag… -
32.768KHz晶体TXC SMD1610 9HT12 9H03200030规格
2023-02-0332.768KHz晶体TXC SMD1610 9HT12 9H03200030规格说明如下: 1.6 x 1.0 x 0.5 (max) mm 所属系列:9HT12 Series 料号:9H03200030 特点及优势 2焊盘表面贴装封装音叉晶体 适用于智能手机及各种紧凑型便携式消费产品的参考时钟 … -
什么是晶体振荡器的短期稳定性?
2023-02-02What is Short Term Stability in a Crystal Oscillator?什么是晶体振荡器的短期稳定性? Short-term stability of a crystal oscillator is a measure of the oscillator’s fre… -
智能电子产品中的石英晶体应用
2023-02-02Just like in the production of wristwatches and clocks, quartz crystals are also widely used in smart electronics because it generates current on its … -
Some explanations to the crystal oscillators
2023-02-01A Piezoelectric Quartz Crystal Unit is an electronic component used in frequency control applications. Piezoelectric Quartz Crystal Units are u… -
时钟信号clock signal与Crystal Oscillator晶体振荡器
2023-02-01时钟信号clock signal In electronics and especially synchronous digital circuits, a clock signal (historically also known as logic beat) is an elect… -
32.768KHz晶振±5ppm一年误差多大?
2023-01-3132.768KHz晶振±5ppm一年误差多大? 答: ±5PPM频差为:32768.16384Hz~32767.83616Hz 每天时间误差:0.864×0.5×1=0.432秒 一年时间总偏差:2.628分钟 常见32.768KHz晶振调整频差:±10ppm ~±30ppm ±10PPM:频差为:… -
VC-TCXO压控温补晶振的一号脚可以悬空吗?
2023-01-31VC-TCXO压控温补晶振的一号脚可以悬空吗? 答:不可以。 以压控温补晶振VC-TCXO(料号1XTV20000CDA)为例,其电气参数如下: Supply Voltage(电源电压):+3.3V Control Voltage Range(压控范围): +0.5~+2.5V (参考中心值Ref.… -
是什么决定了晶体的频率?
2023-01-30通常情况下,一般工程师只知道晶体是一种频率元器件,但可能更少有人知道晶体还分为基频晶体(The Fundamental Frequency Crystal)和泛音晶体(The Overtone Crystal)。那么什么是基频晶体,什么是泛音晶体,两者在电路中的使用有什么区别呢? 石英晶体的振动就像…