The IDT 650-14 is a low cost, low jitter, high performance clock synthesizer customized for networking systems applications. Using analog/digital Phase-Locked Loop (PLL) techniques, the device accepts a 25 MHz clock or fundamental mode crystal input to produce multiple output clocks of one fixed 25 MHz, a four (plus one) frequency selectable bank, and two frequency selectable clocks. All output clocks are frequency locked together. The IDT650-14 outputs have zero ppm synthesis error.