The WEA48S55T from Weasic Microelectronics is a Frequency Synthesizer with Frequency 4400 to 6400 MHz / 6870 to 7750 MHz, Reference Frequency 25 to 150 MHz (input), Supply Voltage 1.8 V, Current 120 mA, Phase Noise -110 dBc/Hz @ 1 MHz. Tags: Surface Mount, PLL Frequency Synthesizer. More details for WEA48S55T can be seen below.