There are many crystal oscillator configurations ... when it comes to any commonly used component, and crystals are no exception. [Featured and Thumbnail Arduino crystal image: DustyDingo ...

[Tom] used a Teensy 3.1 Arduino compatible board ... The VCXO means voltage controlled crystal oscillator. The crystal is 25 MHz and provides a very stable frequency source for the chip.

Touted as the industry's first 1.8V HCMOS crystal clock oscillator, the NTH through-hole-mount metal package and S1612 surface-mount ceramic package oscillators allow designers the opportunity to ...