The MK3713 is ICS/MicroClock's lowest cost, low jitter, high performance 3.3 Volt VCXO designed to replace expensive VCXO modules. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3 V input voltage to cause the output clocks to vary by 100 ppm. Using ICS/MicroClock's patented VCXO and analog Phase-Locked Loop (PLL) techniques, the device uses an inexpensive external pullable crystal input to produce the output clock.