The low-jitter CFPT-9400 range of TCVCXOs has been designed for use in TDM switching systems for optical-fibre backbone infrastructure. By using a high-frequency fundamental crystal together with C-MAC's Pluto temperature-compensation technology, the CFPT-9400 range eliminates reception «slips" that compromise the effective bandwidth of SDH/SONET and Gigabit Ethernet fibre networks. Jitter performance is less than 3ps rms from 10Hz to 80MHz by avoiding the use of a phase-locked loop in favour of a low-phase-noise high-frequency fundamental crystal and harmonic multiplication. Frequency stability over the 0º to +80ºC temperature range is kept to ±1.5ppm. The CFPT-9400 is available in five output frequencies: 622.08000, 666.51436 and 669.32658MHz for SDH/SONET switches with or without FEC; and 644.53125 and 693.48299MHz for Gigabit Ethernet and 10Gbit Ethernet applications. Frequency adjustment of up to ±60 ppm is available through external voltage control. Supply voltage is 3.3V with a current consumption of 65mA typical; output is 3.3V PECL (LVPECL)-compatible. The chip comes in a standard 14x9mm SMD.