The HD32577 from HD Communications Corp is a Voltage Controlled Oscillator with Frequency 1700 to 1850 MHz, Power 0.5 to 2 mW, Tuning Sensitivity 70 MHz/V, Tuning Voltage 0.5 to 4.5 V, Pulling 13 MHz. Tags: Module with Connectors. More details for HD32577 can be seen below.