The CVCO55CC-1220-1340 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 1.22 to 1.34 GHz, Power 5.012 mW, Tuning Sensitivity 20 MHz/V, Tuning Voltage 1 to 10 V, Pulling DC to 0.5 MHz. Tags: Surface Mount. More details for CVCO55CC-1220-1340 can be seen below.