Jauch音叉晶体32.768KHz是如何工作,为什么音叉晶体的频率总是32.768kHz?
手表中使用的音叉晶体是石英晶体中的“经典”。它的频率总是正好为32.768kHz。但是为什么是这个值呢?
这个问题的答案可以在石英晶体的历史中找到。贝尔电话实验室是当今美国电话电报公司电信集团的前研究部门,是这一领域的先驱之一。最初,他们的研究重点是稳定无线电频率,但很快就清楚了石英晶体也可用于时间测量。1928年,美国人自豪地展示了世界上第一个石英钟。
音叉晶体树立了新的精度标准
在这一突破之前,所有的钟表都是纯机械运转的。通过安装石英晶振和使石英振荡的相应能量源,首次引入了电子元件。这确实奏效了:新款石英表的走时比纯机械手表精确得多。
但是石英晶体实际上实现了什么功能呢?简而言之,石英晶体确保手表“知道”一秒持续多长时间。这是通过产生恰好1赫兹的频率来实现的。赫兹是频率的常用测量单位。它表示周期信号中每秒重复过程的次数;在这种情况下,秒针在表盘上前进一个位置。
输出频率32.768kHz?
32.768赫兹音叉晶体的唯一标准频率来自哪里?要理解这一点,你必须知道石英晶体的频率取决于它的形状和大小。一个自然频率只有1赫兹的石英会如此之大,它更适合“大本钟”钟楼,而不是手表。显然,从生产和使用的角度来看,这是相当不切实际的,所以有一个特殊的技巧。
32.768kHz频率的手表晶体比较容易生产。内置于手表中,其原始频率使用所谓的T触发器或波纹计数器进行分割。每个T触发器可以将石英的频率减半。如果15个这样的触发器串联,32.768K晶振的输出频率正好等于1赫兹。因此,经典音叉晶体的频率最终是简单的算术运算和石英生产的一般条件的结果。
Jauch音叉晶体32.768KHz是如何工作,面向大众市场的精确频率
几十年过去了,石英表才最终进入大众市场。1969年,日本精工公司在市场上推出了第一款商用石英手表。然而,46万日元的成本相当于一辆小型汽车。但是发展很快:到20世纪70年代中期,石英表已经比纯机械机芯的“传统”手表便宜。
当时,Jauch晶振公司也抓住了这个机会,建立了自己的音叉晶体和其他频率控制产品的贸易和生产网络。自然,音叉晶体仍然今天投资组合的一部分。然而,Jauch也提供了一个各种振荡器音叉频率为32.768KHz.
Manufacturer Part Number
谐振器
Description
Series
Frequency
Load Capacitance
Q 0.032768-JTX310-12.5-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-9-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-12.5-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-50K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-50K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-50K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-60K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-60K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T1-HMR-60K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-7-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-9-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-7-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-9-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-12.5-20-T2-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T2-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T2-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-7-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-12.5-20-T3-HMR-70K-LF
音叉晶体
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T3-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-20-T3-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-6-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX210-12.5-20-T1-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T1-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T1-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-9-20-T1-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX210-9-20-T1-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX210-9-20-T1-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX310-6-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-20-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-12.5-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T2-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T2-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T2-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX210-9-20-T2-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX210-9-20-T2-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX210-9-20-T2-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX310-12.5-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-9-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-12.5-10-T1-HMR-50K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-50K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-50K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-60K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-60K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T1-HMR-60K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-7-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-9-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX210-12.5-20-T3-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T3-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX210-12.5-20-T3-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX210
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T2-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T2-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T2-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX210-9-20-T3-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX210-9-20-T3-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX210-9-20-T3-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX210
32.768kHz
9pF
Q 0.032768-JTX310-7-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-9-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-9-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 9PF SMD
JTX310
32.768kHz
9pF
Q 0.032768-JTX310-12.5-10-T3-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T3-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-12.5-10-T3-HMR-70K-LF
Jauch Quartz
CRYSTAL 32.768KHZ 12.5PF SMD
JTX310
32.768kHz
12.5pF
Q 0.032768-JTX310-7-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-7-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 7PF SMD
JTX310
32.768kHz
7pF
Q 0.032768-JTX310-6-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T1-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T2-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF
Q 0.032768-JTX310-6-10-T3-HMR-LF
Jauch Quartz
CRYSTAL 32.768KHZ 6PF SMD
JTX310
32.768kHz
6pF