The RSO1723AH from Roswin is a Voltage Controlled Oscillator with Frequency 1590 to 1855 MHz, Power 5.012 mW, Tuning Sensitivity 28 MHz/V, Tuning Voltage 1 to 12 Vdc, Phase Noise -108 dBc/Hz. Tags: Surface Mount. More details for RSO1723AH can be seen below.