The Crystal Oscillator for network communication and optical module from Kyocera is a differential output crystal oscillator designed for network communication equipment and optical modules supporting 100G, 400G and 800Gbit/s backbone links. It is available at 100, 125 and 156.25 MHz, in package sizes from 2.0 x 1.6 mm to 3.2 x 2.5 mm, with LV-PECL, LVDS and HCSL output options, operating temperature ranges of -40 to +85 °C or -40 to +105 °C and typical jitter of 0.05 ps at 156.25 MHz. The device is intended for core networks, servers and data centers where low noise, small size and stable high-frequency timing are needed for optical communication modules. Its compact differential-output design can help engineers support higher data rates while fitting timing components into space-constrained telecom and networking hardware.