Skyworks has introduced the SKY66118-11 and the SKY66407-11, 2.4 GHz front-end modules (FEMs) for 
Source: SkyworksBluetooth internet of things (IoT) applications including smartwatches, trackers, connected home systems, wireless and gaming headsets and more.
These low power solutions significantly improve range (more than two times) when compared to standalone system-on-chip 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.
The SKY66118-11 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 two-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.
The SKY66407-11 is a highly integrated FEM 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 nine-pin CSP package.
