Quad-Band GSM/EDGE & Band34/39 TD-SCDMA/TDD-LTE Front End Module with 14 TRx Ports

The FX5596Y is a multi-mode multi-band front-end module (FEM) delivering both the power amplification and antenna switching functions. With the state-of-the-art integration design and advanced GaAs technology, this FEM supports both quad-band GSM/GPRS/EDGE (GSM850/EGSM900/DCS1800/PCS1900) and dual-band TD-SCDMA/TDD-LTE (Bands 39 & 34 1880-1920MHz and 2010-2025MHz), with matched 50Ohm RF input and output ports. The FEM also supports UMTS/LTE applications through 14 high linearity TRx ports.


The FX5596Y consists of a GaAs HBT power amplifier, a SOI SP16T antenna switch, and a CMOS controller chip. The GaAs HBT power amplifier can work in saturated mode for GMSK, as well as in linear mode for EDGE 8PSK and TD-SCDMA/TDD-LTE operations. With delicately designed internal low-pass filters, this module provides excellent harmonic suppressions in all operating frequencies. The embedded SP16T switch enables up to 14 TRx ports with low insertion loss and high linearity, including 1 ultra-low insertion loss ports. The FX5596Y also guarantees robust 8kV high ESD protection for the antenna port. The integrated multi-functional CMOS controller regulates the supply voltage to ramp the output RF power in saturated GSM/GPRS operation, flattens the power variation under battery voltage, ambient temperature, mismatch circumstances, optimize bias voltage for multi-mode operations, and powers up the SOI switch with internal voltage regulators.


Housed in a compact 5.5mm x 5.3mm x 0.69mm package, the FX5596Y greatly lowers the front-end complexity of multi-mode GSM/GPRS/EDGE/TD-SCDMA/TDD_LTE solution, facilitates the customer’s implementation, and saves board room and cost significantly.


• Multi-mode high integration
• 25dBm maximum linear power for TD-SCDMA application
• 24dBm maximum linear power for TDD-LTE application
• 14 low insertion loss/high linearity TRX ports with 1 ultra-low insertion loss ports
• MIPI RFFE v2.1 control interface
• Integrated broadband coupler
• Improved TRP variations
• Internal harmonic filtering
• 8kV ESD protection at antenna port
• MSL rating level 3
• Green product