The VCO1590-1855 from Dynamic Engineers is a Voltage Controlled Oscillator with Frequency 1.59 to 1.855 GHz, Power 5.01 mW, Tuning Sensitivity 28 MHz/V, Tuning Voltage 1 to 12 V, Phase Noise -108 dBc/Hz. Tags: Surface Mount. More details for VCO1590-1855 can be seen below.