Differential oscillator for Gigabit and 10 Gigabit Ethernet applications

SiTime has introduced the SiT9102AC differential oscillator for Gigabit and 10 Gigabit Ethernet applications. High performance networking equipment such as multi-port Ethernet Switches, FTTH (fiber to the home) equipment such as OLT (optical line terminals) and ONUs (optical network units), broadband CPE (customer premise equipment) as well as IP (Internet protocol) set top boxes can use the SiT9102AC to provide clocks for Ethernet functions. The devices are available in surface-mount packages, enabling easy and cost-effective replacement of quartz-based solutions. The SiT9102AC oscillator is available in 125MHz, 156.25MHz and 161.1328MHz output frequencies. The clock output is configured to comply with LVPECL (low voltage positive emitter coupled logic), which is consistent with the Ethernet standards. The oscillators offer total frequency stability of ±25PPM over the extended commercial temperature range (-20°C to +70°C), which helps improve system timing margin. The features that are configurable on the SiT9102AC oscillator include: power supply voltage: 3.3V, 2.5V or 1.8V; and package size: 7.0x5.0x0.9mm or 5.0x3.2x0.75mm.

EDN Europe