The WEA48S55T is a wide band fractional–N frequency synthesizer with the integrated ability to synchronize the VCO‟s output phase implemented in the TSMC55 process. It uses a reference input ranging from 25 MHz to 150 MHz, that can be doubled with the use of a XOR doubler. The WEA48S55T can generate an RF signal ranging from 4.4 GHz up to 6.4 GHz frequency range with a bank of 3 integrated VCOs and 6.87 GHz up to 7.75 GHz with a bank of 2 integrated VCOs for the RX and the TX PLL respectively. The synthesizer has the ability to automatically lock into the selected frequency utilizing an algorithm that selects linearly between the various VCOs and binary weights between the 128 bands. The WEA48S55T is powered by a 1.8 V supply.