The HMC824 from Analog Devices is a Frequency Synthesizer with Frequency 780 to 870 MHz, Reference Frequency 10 to 200 MHz, Output Power 16.5 dBm, Supply Voltage 3 to 3.5 V, Current 148 mA. Tags: Surface Mount, PLL Frequency Synthesizer. More details for HMC824 can be seen below.