The CVCO55CL-1145-1210 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 1.145 to 1.21 GHz, Power 3.981 mW, Tuning Sensitivity 50 MHz/V, Tuning Voltage 0.5 to 4.5 V, Pulling 1 to 2 MHz. Tags: Surface Mount. More details for CVCO55CL-1145-1210 can be seen below.