2.4GHz multichannel FSK tranciever IC from austriamicrosystems

austriamicrosystems has released the AS3940, a 2.4 GHz multi-channel 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 at 250kbps, -92 dBm at 2 Mbps), data rates from 250 kbps up to 2 Mbps, and integrates a digital RSSI (received signal strength indictor), real time clock (RTC) and programmable clock output, a Gaussian filter, PLL (phase locked loop) and loop filter.

The AS3940 has a built-in star network management protocol manager that is royalty-free and provides a protocol for self-management 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 offers good adjacent channel rejection and sensitivity. This device features battery voltage monitoring, adaptive channel switching, integrated TX/RX switch and 4 separate 256-bit user data buffers.

Other features include programmable output power, efficient power management, power-optimized wakeup modes and support of frequency hopping. The AS3940 is suggested 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."

Package: QFN-32 (5x5 mm)

Operating temperature range: -40 to +85 °C.

Price: The AS3940 costs less than US$3.00 for 1000 piece quantities.

For more information visit: www.austriamicrosystems.com/AS3940