The CVCO55CC-3745-3955 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 3.745 to 3.955 GHz, Power 12.589 mW, Tuning Sensitivity 13 MHz/V, Tuning Voltage 0 to 20 V, Pulling DC to 5 MHz. Tags: Surface Mount. More details for CVCO55CC-3745-3955 can be seen below.