The DCO400660-5 from Synergy Microwave Corporation is a Voltage Controlled Oscillator with Frequency 4 to 6.6 GHz, Power 1 mW, Tuning Sensitivity 135 to 700 MHz/V, Tuning Voltage 0.5 to 11 V, Pulling 25 MHz. Tags: Surface Mount. More details for DCO400660-5 can be seen below.