11.0592MHz Crystal Oscillator A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency. Applications of 11.0592 MHz Crystal Oscillators: Resonance circuit. DIY projects. Electrical/electronic projects. Clock generator for microcontroller. DTMF decoder. Features of 11.0592 MHz Crystal Oscillators: Stability in frequency. Small in size. Low cost. Easy of interfacing.