SKY65228-11: WLAN 802.11n Single Band 4.9?.85 GHz MIMO Intera? Front-End Module

The SKY65228-11 Intera nFEM contains two complete 4.9,.85 GHz transmit/receive chains in one compact Rf Front-End module optimized for single band 4.9,.85 GHz MIMO (multiple inultiple out) operation, in compliance with the 802.11n draft standard. The SKY65228-11 includes two 4.9,.85 GHz PAs with integrated input filtering for 3, GHz rejection, and temperature- compensated, directional power detector with 20 dB dynamic range. Also included are low loss, high rejection GaAs harmonic Filters and T/R switches which provide high linearity in all transmit paths and low loss in all receive paths. The SKY65228-11 Intera nFEM achieves outstanding gain matching which is a critical requirement for MIMO operation. This is accomplished though mirrored layout symmetry. The SKY65228-11 is packaged in a lead (Pb)-free, RoHS-compliant laminate package, which measures 10 x 14 x 0.9 mm. This FEM is designed as a pin to pin compatible version of the SKY65225-11 for 4.9,.85 GHz only. By Skyworks Solutions, Inc.