The Overview: An IoT FEM With Versatile Connectivity
pSemi’s PE562212 is a tiny multi-protocol, 2.4-GHz front-end module (FEM) that brings versatility to makers of IoT devices. The highly integrated silicon-on-insulator FEM includes an RF power amplifier, low-noise amplifier, and control logic in a package suited for space-constrained PCBs.
Who Needs It & Why: IoT Device Makers Seeking Options
The PE562212 provides IoT designers with a bevy of options for connectivity, considering that it's designed for Thread, Zigbee, Bluetooth BDR/EDR, and Bluetooth LE applications. It’s also capable of low-to-medium Wi-Fi throughput for devices that require firmware upgrades, or for applications with the need for increased data traffic.
One might use the PE562212 in an IoT device for, say, Bluetooth connectivity to a smartphone. But it also offers the ability to perform firmware upgrades over Wi-Fi. It’s said to offer a balance of efficiency and linearity, enabling it to handle these disparate functions.
While also serving proprietary 2.4-GHz applications, the device links all sorts of smart devices using the Thread and Matter protocols. Smart speakers, lighting, and thermostats can be connected, as can IoT hubs, range extenders, wearables, sensors, and more. IIoT applications abound, too, such as asset tracking and industrial devices.
Under the Hood: Solid Banner Specifications
On top of its compact size and high integration, the PE562212 delivers up to +21-dBm output power and digital transmit-gain control in 1-dB steps with 15-dB range. In addition, the device offers impressive receive capabilities with a typical noise figure of 1.5 dB and a low-loss bypass path (0.9 dB typical) with a GPIO interface.
PCB routing is simplified by the PE562212 because it requires no external SMD components, such as control lines, supply lines, and RF traces. Packaged in a 14-lead 1.8- × 1.8- × 0.7-mm LGA package, the device is available in sample quantities now.
