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Product Description
The OM8816-51 is a high-power, high-efficiency Front-End Module (FEM) for GSM850 / EGSM900 and DCS1800 / PCS1900 operation. The FEM supports Class12 General Packet Radio Service (GPRS), EDGE multi-slot operation. This FEM builds upon OnMicro’s unique power amplifier architecture technology to provide maximum efficiency and output power, integrated over-current and over-voltage regulating technology stable ruggedness and TRP performance under load mismatch.
The module provides 50 Ω impedance at input and output ports, consists of a CMOS PA including a Controller, a SP16T RF switch with integrated Tx low pass harmonic filtering can achieve best harmonic performance. The OM8816-51 supports both the Linear Mode operation standard and VRAMP-BASED operation facilitating various platforms application implementation.
This FEM can sustain 8 KV ESD at Antenna port, without external components needed, and also guarantees robust
12 : 1 VSWR on Antenna Port under load mismatch condition.
Product Features
►LGA: 5.5 mm ×5.3 mm ×0.74±0.06 mm
►Fully programmable MIPI RFFE control
► Fourteen low-insertion-loss TRx ports (five ultra-low loss) with enhanced linearity, for state-of-the-art 4G performance and GPS/WiFi compatibility
► High Efficiency (inclusive of coupler)
► Over-current limiting and over-voltage protection for ruggedness and extended battery life
►Power control circuitry built-in for improved TRP variation
Applications
►Cellular handsets encompassing Quad-Band GSM/EDGE
►GMSK Modulation
•Class 4 GSM850/EGSM900 Band
•Class 1 DCS1800/PCS1900 Band
•Class 12 GPRS multi-slot operation
►EDGE Modulation
•Class E2 GSM850/EGSM900
•Class E2 DCS1800/PCS1900
Figure 1. Functional Block Diagram