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By Rich Handley

Silicon Labs Provides Battery-Operated Wi-Fi Devices for Internet of Things

Silicon Labs has introduced a new Wi-Fi portfolio to simplify the design of power-sensitive, battery-operated Wi-Fi products, including IP security cameras, point-of-sale terminals and consumer health-care devices. Designed for increased energy efficiency, the company's WF200 transceivers and WFM200 modules support 2.4 GHz 802.11 b/g/n Wi-Fi, the company reports, while delivering the performance and connectivity necessary as the number of connected devices increases in home and commercial networks.

"We've delivered the first low-power Wi-Fi portfolio designed specifically for the IoT, enabling breakthroughs in secure, battery-powered connected device designs that simply weren't possible until now," said Daniel Cooley, Silicon Labs' senior VP and general manager of IoT products, in a prepared statement. "It's no surprise we're seeing strong customer demand for Wi-Fi technology that fits within the tight power and space budgets of battery-operated devices, freeing end users from the need to connect to ac power sources."

Developers can speed time to market and miniaturize battery-operated Wi-Fi products with the WFM200, a pre-certified system-in-package module with an integrated antenna. Silicon Labs' WF200 transceiver is suitable for high-volume applications, according to the company, and offers developers the flexibility to meet unique system design requirements, such as using external antennas.

The WF200 transceiver and WFM200 module can be used for Wi-Fi-enabled IoT applications. They provide low transmit (TX: 138 mA) and receive (RX: 48 mA) power; 200 µA Wi-Fi power consumption (DTIM = 3), contributing to low system power; a link budget of 115 dBm for long-range Wi-Fi transmissions; a 4-millimeter by 4-millimeter QFN32 transceiver and a 6.5-millimeter by 6.5-millimeter LGA52 SiP module for space-constrained applications; a secure boot and host interface; hardware cryptography acceleration supporting AES, PKE and TRNG; pre-certification by the FCC, CE, IC, South Korea and Japan; and development tools and a wireless starter kit, including embedded and Linux host drivers.

Silicon Labs is sampling WF200 transceivers and WFM200 SiP modules to selected customers. Production parts are planned for this quarter, according to the company.

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