The RSO1920AM from Roswin is a Voltage Controlled Oscillator with Frequency 1920 MHz, Power 1.585 mW, Tuning Sensitivity 6 MHz/V, Tuning Voltage 0.5 to 4.5 Vdc, Phase Noise -121 dBc/Hz. Tags: Surface Mount. More details for RSO1920AM can be seen below.