Profile: Crystek Crystal Corp. offers quartz crystals. We are an ISO 9001:2000 certified company. Our products are crystals with chip sets, clock oscillators, oven controlled crystal oscillators, power regulators, pocket reference oscillators, SAW based clock oscillators, TCXO oscillators and VCXO oscillators. We also offer voltage controlled oscillators, phase lock loop synthesizers, RF cable assemblies, low pass filters, attenuators, DC blocks, passive doublers and VCO evaluation boards. Our CPLL58 phase lock loop synthesizers are programmed using a standard three line interface (data, clock and load enable). Our CMD4A surface mount quartz crystals feature a frequency range of 3.57945MHz to 86MHz.