The CA20 from CTS Electronic Components is a Clock Oscillator with Frequency 1.25 to 100 MHz, Supply Voltage 1.8 to 3.3 V, Output_Voltage 0.18 to 2.97 V, Current 6 to 20 mA, Standby Current 10 µA. Tags: Ceramic, Surface Mount. More details for CA20 can be seen below.