Know with you: the requirements of smart wearable products on crystal oscillating

What kind of crystals do they use in the intelligent wearable industry, so what are these watches with special functions? What are the characteristics of ordinary crystals used for these technology intelligent products? Today, I will take you to learn about it:

智能穿戴行业如火如荼，那么这些有着特殊功能的手表，它们用的是什么晶振呢？用于这些科技智能产品的晶振到底有哪些普通晶振没有的特性？今天小编就带您一起了解一下：

Special crystal of materials:

材料特殊的晶振：

The crystal it uses must be quartz, or ceramics, or a crystal with special functions, such as high -temperature patch crystals, maintaining a very stable quartz crystal, as well as stable -frequently, source crystals, of course, temperature supplement Crystal vibration, constant temperature crystal. Because their materials are special, they are used for smart watches and many functions of watching watches, and these crystals and other accessories of smart watches blend with each other, making intelligence more prominent.

它所用的晶振必须要是石英，或者陶瓷，又或者是有着特殊的功能的晶振，如耐高温的贴片晶振，保持很稳的石英晶振，还有频率稳定的有源晶振，当然还有温补晶振，恒温晶振。因为它们的材料特殊，用于智能手表，支持手表的很多功能，而且这类晶振与智能手表的其它的配件互相融合，使得智能更加的突出。

Crystal with a stable frequency:

频率稳定的晶振：

The general frequency of the crystal of intelligent wearable products is generally 32.768Hz. Some smart watches should be lower than this frequency, so ordinary crystals cannot meet this demand. Of course, in order to save costs, some manufacturers use ordinary cheap crystals, so the life of these smart products is generally low. Of course, you may think why the frequency of the precision crystal of smart products is 32.768Hz, because the output swing is controlled directly compatible with the XTAL output swing. It can support power supply equipment such as lithium battery and supercapacitors, without additional load capacitors. Inside contains the LDO circuit, there is no need to coupled capacitors.

智能穿戴产品的晶振一般的频率一般是32.768Hz，有些智能手表应该晶振可以低于这个频率，所以普通的晶振根本满足不了这个需求。当然，不乏有些厂家为了节省成本，而用普通的廉价晶振，所以这些智能的产品的寿命一般很低。当然，你可能想为什么智能产品的精晶振的频率会是32.768Hz，因为输出摆幅可控可直接兼容XTAL输出摆幅。可支持锂电、超级电容等供电设备供电，无需额外的负载电容。内部含有LDO电路，无需额外去耦电容。

Corporation with stable capacitance:

电容稳定的晶振：

The crystal has two feet. They are the responsibilities of carrying the capacitance. Generally, the meaning of the load capacitor means that the same capacitance must be installed to achieve the design oscillating frequency. Large, the greater the chance of being affected, and the temperature and electromagnetic interference will affect the oscillation frequency. If external capacitors are not installed as required, the oscillating frequency will increase. Due to the large volume of the two series, the chance of being disturbed is also high.

晶振有两个脚，它们就是承载起电容的职责，一般负载电容的意思就是必须装相同的电容，才能达到设计振荡频率，理论上负载电容越小，说明频偏越小，因为外置电容越大，受影响的机会越大，温度、电磁干扰都会影响振荡频率。如果不按要求安装外置电容，振荡频率会升高，两个串联由于体积过大，受干扰的几率也大。