产品

Product Description

The HS8816-21 is a high-power, high-efficiency Front-End Module for GSM850/900, DCS1800, PCS1900 operation. The FEM also supports Class.12 General Packet Radio Service (GPRS), EDGE multi-slot operation, and TD-SCDMA linear transmission. 

The module provides 50 ohm impedance at input and output ports, consists of a CMOS Controller, a SP16T RF switch, a power amplifier supporting GSM850/900, DCS1800/PCS1900, TD-SCDMA bands 34/39. The module integrated Tx low pass harmonic filtering can achieve best harmonic performance.

The HS8816-21 provides high-power and high-efficiency Pout for GSM850/900, DCS1800, PCS1900 operation mode. As the linear-GMSK operation standard disables VRAMP input, all PA biasing depends only on MIPI mode selection. The transmitted envelope is a linear function of RF input.

The HS8816-21 can sustain 8KV ESD at Antenna port, without external components needed. The module can sustain 20:1 VSWR on Antenna Port under mismatch condition.

Product Features

► LGA: 5.5 mm x 5.3 mm x 0.85 mm Max

► 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)

        • GSM850/GSM900 36% 

        • DCS1800/PCS1900 30%

► Integrated input switch for 3G/4G signal path

► Tx harmonics below –40 dBm

► Current limiting and over-voltage protection for ruggedness and extended battery life

► Power control circuitry built-in for improved TRP variation

► MIPI RFFE control with dual-standard support

        • User-selectable register mappings

        • Linear GMSK power control

Applications

        • Cellular handsets encompassing Quad-Band GSM/EDGE, Dual-Band TD-SCDMA

        • Class 4 GSM850/900

        • Class 1 DCS1800/PCS1900

        • Class 12 GPRS multi-slot operation

        • Linear EDGE operation

        • TD-SCDMA Bands 34/39

Functional Block Diagram