Miniaturized crystal oscillator has been used on ETC. ETC is a non-stop electronic toll collection system.
Whatever you use quartz crystal oscillator or clock crystal oscillator, there are some precautions you should notice during you use oscillator.
Crystal oscillators are also classified into two types: passive crystals and active crystal oscillators. We are crystal oscillator manufacturer, providing high quality voltage controlled crystal oscillators.
The wireless communication mode between two NFC devices is based on the quartz crystal frequency of 13.56 MHz, and the effective distance is only about 10 cm.