The RSO3790AM from Roswin is a Voltage Controlled Oscillator with Frequency 3740 to 3840 MHz, Power 1.585 mW, Tuning Sensitivity 10 MHz/V, Tuning Voltage 1 to 15 Vdc, Phase Noise -110 dBc/Hz. Tags: Surface Mount. More details for RSO3790AM can be seen below.