The VCO1800-1900 from Dynamic Engineers is a Voltage Controlled Oscillator with Frequency 1.8 to 1.9 GHz, Power 5 mW, Tuning Sensitivity 36 MHz/V, Tuning Voltage 0 to 4.5 V, Phase Noise -109 dBc/Hz. Tags: Surface Mount. More details for VCO1800-1900 can be seen below.