2.4 GHz Front-End Module for Zigbee®/Thread/Bluetooth® Applications

The SKY66409-11 is a high-performance, fully integrated RF front-end module (FEM) designed for Zigbee®, Thread, and Bluetooth® (including low energy) applications.

The SKY66409-11 is designed for ease of use and maximum flexibility. The device provides a power amplifier, low-noise amplifier, low-loss bypass path, transmit/ receive switches, and digital controls compatible with 1.2 V to 3.6 V CMOS levels. The RF blocks operate over a wide supply voltage range from 1.8 V to 3.6 V that allows the SKY66409-11 to be used in battery powered applications over a wide spectrum of the battery discharge curve.

The SKY66409-11 is provided in a 1.25 mm x 1.7 mm x 0.35 mm, 12-pin Chip Scale Package (CSP).


Product LifecycleIn Production
RF Frequency (MHz)2400-2483.5
Supply Voltage (V)1.8-3.6
PackageCSP, 12-pin
Package (mm)1.25 x 1.7 x 0.35
Tx Gain (dB)TBD
Saturated Output Power (dBm) Typ.TBD
Rx Insertion Loss (dB) Typ.TBD


  • Adjustable gain, output power, and current consumption
  • Integrated PA with +13 dBm output power, up to 15 dBm (max). Bluetooth® signal EDR output power: +10.5 dBm
  • Integrated LNA (2.5 dB noise figure typ.) and bypass path
  • Single-ended transmit/receive interface
  • Fast switch on/off time: < 800 ns
  • Supply range: 1.8 V to 3.6 V
  • Sleep mode current: < 1 uA typical
  • Small (1.25 mm x 1.7 mm x 0.35 mm) package (MSL1, 260 °C per JEDEC-J-STD-020)

  • Skyworks' products are designed to be used in connection with qualified Bluetooth® products and applications; however, Skyworks' products are not themselves qualified Bluetooth® products or otherwise approved by Bluetooth SIG, Inc.

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