simple package crystal oscillator (SPXO)
Simple Package Crystal Oscillator (SPXO) are simple crystal oscillators( XO) housed in small packages that have no temperature compensation or control.
SPXO oscillators are simple oscillator circuits specifically suited for clock generation in electronic circuits.
SPXOs are available for a wide range of frequencies between about 30 MHz and 300 MHz. They can operate at low supply voltages of a few volts, and their output levels are output as low- voltage differential signaling( LVDS) or low-voltage positive emitter-coupled logic( LVPECL). SPXOs can be used in the temperature range between about -50 °C and +90 °C.