The CA50 from CTS Electronic Components is a Clock Oscillator with Frequency 1.25 to 156.25 MHz, Supply Voltage 1.8 to 5 V, Output_Voltage 0.18 to 4.5 V, Current 15 to 55 mA, Standby Current 10 µA. Tags: Ceramic, Surface Mount. More details for CA50 can be seen below.