The VCO1212W-2220-2100-A from Dynamic Engineers is a Voltage Controlled Oscillator with Frequency 2.1 to 2.22 GHz, Power 1 to 3 mW, Tuning Sensitivity 45 to 50 MHz/V, Tuning Voltage 0.5 to 4.5 V, Pulling 2.5 MHz. Tags: Surface Mount. More details for VCO1212W-2220-2100-A can be seen below.