Radio ICs simplify sub-GHz wireless development

Radio ICs simplify sub-GHz wireless development

The EZRadio Si4455 transceiver and Si4355 receiver are well suited for a variety of wireless applications such as remote controls, automotive remote keyless entry (RKE), home and building automation, security and lighting control, wireless sensor networks, and health and fitness devices. Covering the 283 to 350 MHz, 425 to 525 MHz, and 850 to 960 MHz frequency bands, the Si4x55 devices offer +13-dBm output power and –116-dBm sensitivity, enabling them to deliver significantly better range than other sub-GHz solutions.

In addition, the parts offer –56 dB-selectivity and –61-dB blocking at 1 MHz offset. Housed in a tiny 3 x 3-mm QFN package, the Si4x55 devices also offer a standby current of 50 nA, an active transmit current of 20 mA at +10 dBm, and a low receive current of 10 mA. They are supported by the GUI-based EZConfig configuration tool. (10,000; Si4355, from $0.99; Si4455 from $1.19 — available now)

By Christina Nickolas

Silicon Laboratories , Austin , TX
Information 512-416-8500
www.silabs.com