Silicon Labs WFM200S Series 2 Wi-Fi® SiP (System in Package) Module is an ultra-low power transceiver module for IoT and Wi-Fi applications. The WFM200S has a 2.4GHz 802.11b/g/n radio (MAC and PHY layer), optimized for low power and optimal RF performance in crowded RF environments, supporting Linux-based and RTOS-based hosts to deliver a complete Wi-Fi solution. The WFM200S Module provides an output power of 15.1dBm with a receiver sensitivity of -96.3dBm. The device integrates a balun, T/R switch, LNA, and PA. For maximum flexibility, the Module is available both with and without an integrated antenna. Co-existence with external 2.4GHz transceivers is supported via a PTA interface.
The WFM200S has been optimized for resource and power-constrained devices at the RF, protocol, and firmware levels. Power conscious devices can take advantage of these features in both active and idle/sleep modes.
For security-sensitive applications, the WFM200S provides a secure boot and a secure, encrypted host interface. Robust security is made possible with the native integrated True Random Number Generator and OTP memory for confidential encryption key storage.
The WFM200S fits well with Linux-based and RTOS-based host processors. The device supports both the 802.11 split MAC architecture and the 802.11 full MAC software architecture. WFM200S communicates with the external host controller over the SPI or SDIO interface.
The Silicon Labs WFM200S Series 2 Wi-Fi® SiP Module is offered in a 6.5mm x 6.5mm LGA58 package, with a -40°C to +105°C operating temperature range.