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



►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

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