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The Important Piezoelectric Crystal Oscillator Role of SMD3225 and SMD2520 in Intelligent Fitness Mirror

An intelligent fitness mirror, with all kinds of fitness courses, fat reduction, muscle enhancement, boxing, yoga, stretching and other courses, and real-time interaction, one-to-one missionary, so that sports are no longer boring. It's like moving a fitness coach into your home.

 

There are more and more technologies appearing and many of them will use crystal resonators.

 

The frequency accuracy and stability of piezoelectric crystal oscillator is the guarantee of the performance of electronic digital products. If the piezoelectric crystal oscillator of intelligent fitness mirror has some bad phenomena in practical application, such as frequency offset, vibration stop and so on, it will directly lead to the failure of related functions of electronic equipment, and even cause the failure of power on in serious cases.

 

The piezoelectric crystal oscillator commonly used in the intelligent fitness mirror series products are SMD2520 and SMD3225. The common piezoelectric crystal oscillator frequency are 32.768KHz, 12Mhz, 16mhz, 24MHz, 25MHz, 26MHz, 27.12MHz, 32mhz, 40MHz, etc. 

 

These piezoelectric crystal oscillators are mainly responsible for real-time clock, program instruction clock, Bluetooth data transmission, power on, gateway, wired network data, wireless network data (WiFi), etc.. According to the needs of the circuit design, we can choose the passive or active piezoelectric crystal oscillator scheme. The difference is that the passive piezoelectric crystal oscillator needs external capacitor to match with it, while the active piezoelectric crystal oscillator can output the required clock signal by inputting the rated voltage, which has more stability and anti-interference advantages than the former.


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