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Tuesday, October 22, 2019

Low power front end module for IoT designs quadruples range

By Nick Flaherty

Skyworks has launched a a 2.4 GHz front-end module (FEM) designed to boost the range of Zigbee, Thread and Bluetooth Low Energy wireless links in the Internet of Things. The multichip module can be used in applications ranging from sensors, beacons, smart meters and thermostats to wireless cameras, smoke and CO detectors, as well as wearables and medical devices.

The SKY66405-11 measures 1.9 x 1.9 x 0.56 mm and provides increased efficiency as well as more than 4X range extension compared to a standalone system-on-chip (SoC).

The module includes a power amplifier with +13 dBm output power alongside a low-noise amplifier with 2 dB noise figure, low-loss bypass path, single ended transmit and receive switches, and digital controls compatible with CMOS levels.

A wide supply voltage range of 1.7 V to 3.6V allows the device to be used in battery powered IoT applications over a broad spectrum of the battery discharge curve and it covers worldwide unlicensed bands. A fast switch on/off time of under 800ns and 1μa sleep current also help reduce the power consumption, and no external bias resistor is required.

The operating temperature ranges from -40 to 105° C, making the module also suitable for lighting and industrial applications in the IIoT.

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