Tx-Rx iPAC FEM Dual-Band GSM/GPRS GSM900, DCS1800

SKY77518 is a transmit and receive FEM with iPAC™ for dual-band cellular handsets comprising GSM900 and DCS1900 operation and supports Class 12 GPRS multi-slot operation. The module consists of two HBT PA blocks—for GSM900 and DCS1900 bands—fabricated onto a single Gallium Arsenide (GaAs) die, 50-Ohm impedance-matched inputs and outputs, Tx harmonics filtering, high linearity and low insertion loss PHEMT RF switches, diplexer and a PAC block with internal current-sense resistor. A custom BiCMOS IC provides internal PAC. The GaAs die, PHEMT die, Si die and passive components are mounted on a multi-layer laminate substrate encapsulated with plastic overmold.

SKY77518-11A and SKY77518-21 have been discontinued and are not recommended for new design


  • High efficiency
  • Low transmit supply current
  • Internal ICC sense resistor for iPAC
  • Closed loop iPAC
  • Tx–VCO-to-antenna and Antenna-to-Rx-SAW filter RF interface
Product Summary SKY77518–11 Tx–Rx iPAC™ FEM for Dual-Band GSM/GPRS 201056a.pdf (73 KB)
ProductName : SKY77518
Frequency (MHz) :
Description : Tx-Rx iPAC™ FEM for Dual-Band GSM/GPRS
Typical Output Power (dBm) GSM :
Typical PAE (%) :
Supply Voltage (V) : 2.7-4.8
Package : MCM, 20-pin
Package (mm) : 6 x 8 x 1.1
Product Information:
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