FX5805A(TXM)

The FX5805A consists of a GaAs HBT power amplifier, a SOI SP8T, a SOI SP10T 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 TDSCDMA/TDD-LTE operations. With delicately designed internal low-pass filters, this module provides excellent harmonic suppressions in all operating frequencies. The TRx ports are partitioned into two independent switch blocks, comprising 7 LB ports and 9 MHB ports. Each switch block includes an integrated directional coupler that may be monitored on the CPL port with selectable forward or reverse directionality. A built-in diplexer provides simultaneous LB and M/HB reception required for downlink CA at the single antenna port. The FX5805A also guarantees robust 8kV high ESD protection for the antenna port.

Housed in a compact 5.5mmx5.5mmx0.75mm package, the FX5805A 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.