2.4 GHz ZigBee®/Smart Energy Front-EndModule

The SKY66108-11 is a high-performance, fully integrated RF Front- End Module (FEM) that is designed for ZigBee®/Smart Energy applications.

The SKY66108-11 is designed for ease of use and maximum flexibility, with integrated fully matched input balun, integrated inter-stage matching and harmonic filter, and digital controls that are compatible with 1.6 V to 3.6 V Complementary Metal Oxide Semiconductor (CMOS) levels.

The RF blocks operate over a wide supply voltage range from 2.0 V to 3.6V, which allows the SKY66108-11 to be used in batterypowered applications over a wide spectrum of the battery discharge curve.

Please note: SKY66108-11 is being discontinued and is not recommended for new designs. The suggested replacement are SKY66405-11 and SE2438T-R.


Product LifecycleLast Time Buy
RF Frequency (MHz)2400-2500
Replacement Part SE2438T-R, SKY66405-11
Rx Insertion Loss (dB) Typ.3.5
Rx Gain (dB) Typ.12.3
Tx Gain (dB)16
Rx NF (dB) Typ.2.7
Saturated Output Power (dBm) Typ.16
Supply Voltage (V)2.0-3.6
PackageQFN, 20-pin
Package (mm)3 x 3 x 0.55


  • Integrated:
    • PA with up to +16 dBm output power
    • LNA with programmable bypass
    • Transmit and receive switching function
  • +2.7 dB FEM Rx NF
  • Differential Rx/Tx interface with integrated balun
  • Fast switch on/off time <800 ns
  • 2.0 V to 3.6 V supply operation
  • Sleep mode current 0.05 μA typical
  • QFN (20-pin, 3.0 mm x 3.0 mm x 0.55 mm) package (MSL1 @ 260 °C per JEDEC J-STD-020)

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