AX3 ClearClock™ Crystal Oscillators Abracon AX3 ClearClock™ Crystal Oscillators offer RMS jitter of less than 80fs typical (150fs maximum at 156.25MHz). Abracon crystal oscillators are also power optimized with 16mA typical LVDS at 156.25MHz. AX3 provides ±25ppm stability over the industrial operating temperature range (-40°C to +85ºC) and offers 3.3V, 2.5V, and 1.8V supply voltage options. Applications for Abracon AX3 ClearClock Crystal Oscillators include PCI Express, 10G / 40G / 100G optical Ethernet, networking and communication, and more.