The HD32581 from HD Communications Corp is a Voltage Controlled Oscillator with Frequency 2150 to 2240 MHz, Power 1.58 to 2.51 mW, Tuning Sensitivity 36 MHz/V, Tuning Voltage 0.5 to 4.5 V, Pulling 1 MHz. Tags: Module with Connectors. More details for HD32581 can be seen below.