The SKY58095-11 Multimode Multiband Tx-Rx Front-End Module
(FEM) supports 2G / 3G / 4G / 5G mobile devices and operates
efficiently in 3G / 4G / 5G modes. The FEM consists of separate
3G/4G/5G PA blocks operating in mid- and high bands, a silicon
controller containing the MIPI RFFE interface, RF band switches,
MB and HB antenna switches, bi-directional couplers, and
integrated filters for Bands 1, 2, 3, 7, 34, 39, 40 and 41. RF I/O
ports are internally matched to 50 ohms to minimize the need for
external components. Extremely low leakage current maximizes
device standby time.
The IC die and passive components are mounted on a multi-layer
laminate substrate. The assembly encapsulated in a 8.6 mm x 6.5
mm x 0.75 mm, 62-pad LGA, SMT, plastic package allows a
highly manufacturable, low cost solution.
The SKY58095-11 FEM is optimized for LTE Advanced and 5G.
The combined filtering, RF matching, and TRx switching internal
to the FEM optimizes performance for popular Downlink (DL) CA
band combinations, all in a compact and low cost solution. The
FEM contains all necessary components between the antenna and
RFIC transceiver and are optimized to provide superior Rx
sensitivity and Tx efficiency.
Exceptional RF coexistence planning and system techniques are
employed to minimize Rx de-sensitizing (“de-sense”).
For the Uplink, the PA blocks support very wide bandwidth
operation by intra-band CA up to 40 MHz (200RB) for Bands 1, 2,
3 and 7, and up to 60 MHz (300RB) for Bands 40 and 41. The
FEM also supports Downlink/Uplink CA and up to 100 MHz for