austriamicrosystems announces a low-power, 2.4 GHz multi-channel FSK transceiver with built-in star network manager

Fully integrated, royalty free AS3940 transceiver simplifies design, extends battery life

(PresseBox) (Unterpremstaetten, Austria, ) austriamicrosystems (SIX: AMS), a leading global designer and manufacturer of high performance analog ICs, has announced the AS3940, the first fully integrated 2.4 GHz multichannel FSK (frequency shift keying) transceiver with integrated link manager for reliable control of star networks (up to 8 clients). It features low power, high sensitivity (-100 dBm @ 250kbps, -92 dBm @ 2 Mbps), data rates from 250 kbps up to 2 Mbps, and integrates a digital RSSI (received signal strength indictor), realtimeclock (RTC) and programmable clock output, a Gaussian filter, PLL (phase locked loop) and loop filter.

The AS3940 is the first 2.4 GHz transceiver with builtin star network management protocol manager that is royaltyfree and provides an easy to use protocol for selfmanagement of all network functions. This high level of integration not only speeds system design, but also decreases the MCU's workload and ensures robust data transfer (burst and streaming modes) and correct protocol handling. The AS3940 also offers excellent adjacent channel rejection and sensitivity (-100 dBm @ 250 kbps, -92 dBm @ 2Mbps) and unique features like battery voltage monitoring, adaptive channel switching, integrated TX/RX switch and 4 separate 256bit user data buffers.

Other features include programmable output power, efficient power management and poweroptimized wakeup modes, and support of frequency hopping. The performance and integrated functions of the AS3940 make it very well suited for a number of applications, including body area networks (health, fitness), wireless sensor networks, active smart labels, home & building automation, interactive remote controls, and data streaming.

"The introduction of the AS3940 2.4 GHz star network transceiver gives designers a device with a unique blend of high performance, low power, and ease of implementation", stated Johnsy Varghese, austriamicrosystems' Marketing Manager Wireless, "The AS3940 enables customers to be RF implementers instead of RF experts. With its high performance and adaptive channel switching features the AS3940 creates a robust wireless system, even in dense WiFi environments."

Price & Availability

The AS3940 costs less than $3.00 in 1000 piece quantities. Housed in a QFN-32 (5x5 mm) package, the AS3940 operates with a 2.2 V power supply over a temperature range of -40 to +85 °C.

Technical Support

A demo board is available to help evaluate the AS3940. For more information on the AS3940, visit www.austriamicrosystems.com/AS3940

ams AG

austriamicrosystems is a leading designer and manufacturer of standard and customized highperformance analog ICs in the areas of power management, sensors & sensor interfaces and mobile infotainment. Complemented by its full service foundry services, the company focuses on the communications, industrial & medical and automotive markets. austriamicrosystems leverages more that 28 years of expertise in low power and high accuracy to provide industryleading products, operating worldwide with more than 1,000 employees with its own stateoftheart manufacturing and test facilities. austriamicrosystems is listed on the SIX Swiss Exchange in Zurich (ticker symbol: AMS). For more information, visit www.austriamicrosystems.com

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