The DCSR4500-10 from Synergy Microwave Corporation is a Voltage Controlled Oscillator with Frequency 4.5 GHz, Power 3.981 mW, Tuning Sensitivity 4 to 6 MHz/V, Tuning Voltage 0.5 to 10 V, Pulling 5 MHz. Tags: Surface Mount. More details for DCSR4500-10 can be seen below.