LCC offers passive crystal oscillators and active crystal oscillators. Passive crystal oscillators also named crystal resonators, are widely used due to their low cost. The accuracy, stability, and anti-interference ability of active crystal oscillators are superior than the passive crystal oscillators. All of our active crystal oscillators include KHz and MHz are programmable which can meet all the Parameters needs. Programmable crystal oscillators for MEMS will be the future development direction. Any issues, please contact us at anytime.