Model 635 is a high performance platform with optional LVPECL or LVDS output modes. Excellent phase noise and jitter requirements are met by using fundamental and 3rd overtone crystal designs. Model 658 incorporates frequency multiplication technology to achieve higher frequency ranges. This product option provides good performance characteristics at a low cost when compared to high frequency fundamental (HFF) designs. These differential output mode clock oscillators are ideal for networking applications requiring high speed data transmissions. Both designs offer 3.3V and 2.5V operation, complimentary outputs and enable/disable pin location options.