The HMC831LP6CE from Analog Devices is a Phase Locked Loop with Frequency 1.815 to 2.01 GHz, Phase Noise -112 dBc/Hz, Output Power 7.5 dBm, Operating Temperature -40 to 85 Degree C, Phase Noise at 1 MHz -143 dBc/Hz. Tags: Surface Mount, Fractional-N PLL. More details for HMC831LP6CE can be seen below.