New RF Front-End Solutions Improve Range of Bluetooth Modules for IoT

Skyworks has released two new 2.4 GHz RF front-end modules for Bluetooth IoT applications including smartwatches, trackers, connected home systems and more.

The SKY66118-11 and the SKY66407-11 are low power solutions that significantly improve range (more than 2X) when compared to standalone SoC implementations, and efficiently deliver more power to the antenna, thereby minimizing or potentially eliminating any required antenna matching network. The FEMs also integrate power amplifier output matching, harmonic filtering, and bypass path switching which enable flexible and innovative end product designs for space-constrained IoT applications.


Developed for Bluetooth, Zigbee and Thread applications, this high-performance, fully integrated RF front-end module is designed for ease of use and maximum flexibility. The device integrates a +20 dBm power amplifier, RF switches, output matching, and harmonic filtering. Using simple 2-pin GPIO control, the FEM supports three modes of operation (transmit mode, bypass mode, and an ALL OFF sleep mode).

The output power can also be externally adjusted through the VCTRL pin. A low transmit current consumption and operation over a wide supply range enable the FEM to be used with a direct battery connection, supporting a wide range of battery discharge voltages. It is available in a 2.6 x 2.4 x 0.75 mm package. Click here for more information.


It is a highly integrated front-end module designed for Bluetooth IoT applications operating in the 2.4 to 2.4835 GHz range. The device is provided in a 1.2 x 1.2 x 0.35 mm 9-pin CSP package and features adjustable gain, output power, and current consumption. It enables a wide supply range of 1.7 to 3.6 V with a very low transmit current consumption. Click here for more information.

Click here to view more RF Front-End Modules from Skyworks.