SKY66403-11 Buy Now
2.4 GHz ZigBee®/Thread/Bluetooth® Front-End Module

The SKY66403-11 is a high-performance, fully integrated RF front-end module (FEM) designed for ZigBee, Thread, and Bluetooth (including Low Energy) applications.

The SKY66403-11 is designed for ease of use and maximum flexibility. The device provides an integrated inter-stage matching and harmonic filter, and digital controls compatible with 1.6 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 SKY66403-11 to be used in battery powered applications over a wide spectrum of the battery discharge curve.

A functional block diagram is shown in Figure 1. The SKY66403-11 is provided in a small, 22-pin, 3.5 mm x 3.0 mm Multi-Chip Module (MCM) package.


  • Integrated PA with up to +21 dBm output power
  • Integrated LNA (2 dB noise figure typical) and bypass path
  • Integrated antenna diversity switching for all modes
  • 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 μA typical
  • No external bias resistor is required
  • Small MCM (22-pin, 3.5 mm x 3.0 mm x 1.0 mm) package, NiPdAu-plated (MSL3, 260 °C per JEDEC-J-STD-020)
Data Sheets SKY66403-11: 2.4 GHz ZigBee®/Thread/Bluetooth® Front-End Module SKY66403_11_204148C.pdf (1193 KB)
Technical Article RF Front-end Modules Boost Wireless Performance RF_Bluetooth_FEMs.pdf (904 KB)
ProductName : SKY66403-11
RF Frequency (MHz) : 2400-2483
Description :
Rx Insertion Loss (dB) Typ. : 2
802.11 WLAN Standard :
Rx Gain (dB) Typ. : 11
Rx NF (dB) Typ. : 2
Tx Gain (dB) : 22
Saturated Output Power (dBm) Typ. : 21
Supply Voltage (V) : 1.8-3.6
Package : 22-pin MCM
3.5 x 3.0 x 1.0
Package (mm) :
Product Information:
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