The RS881DM from Roswin is a Voltage Controlled Oscillator with Frequency 866 to 896 MHz, Power 1.259 mW, Tuning Sensitivity 15 MHz/V, Tuning Voltage 0.5 to 4.5 Vdc, Phase Noise -105 dBc/Hz. Tags: Surface Mount. More details for RS881DM can be seen below.