Transceiver provides expanded reach and Sigfox compliance

The S2-LP ultra-low power, sub-1GHz transceiver from STMicroelectronics (ST) is now being stocked by Mouser. A successor to their SPIRIT1, the S2-LP radio chip offers designers increased transmission range, greater selectivity, ultra-low power consumption, and high configuration flexibility for IoT applications. The transceiver is an ultra-low-power radio optimized for RF products in the sub-1GHz band. The device operates in the license-free ISM and SRD frequency bands, with additional frequencies available through programming. The transceiver is ideal for use in networked products and support connectivity to the Sigfox global network, Wireless M-Bus, 6LowPAN, and IEEE 802.15.4g standards. The transceiver draws just 6.7mA when receiving, and 10mA when transmitting at an output power of 10dBm. Equipped with an efficient power-management circuit, the transceiver provides an integrated switching regulator that enables it to operate from a 1.8V to 3.6V input at a power-conversion efficiency of 90 percent — making the S2-LP ideal for battery-powered products. The device is supported by three development kits. Target RF wireless applications for the device include IoT devices, wireless alarm systems, smart metering, smart lighting, industrial monitoring, building automation, and smart home systems.