Silicon Labs rolls out sub-GHz wireless ICs
7/24/2012 5:06 PM EDT
A family of sub-GHz wireless ICs is designed to streamline the process of adding RF connectivity to a wide range of embedded applications. The Si4x55 EZRadio product line from Silicon Laboratories Inc., which consists of the Si4455 transceiver and Si4355 receiver, covers the 283-350 MHz, 425-525 MHz, and 850-960 MHz frequency bands. Offered in a 3-mm x 3-mm form factor, the chips provide 13 dBm output power and -116 dBm sensitivity, along with an out-of-band performance of -56 dB selectivity and -61 dB blocking at 1 MHz offset.
Additionally, the units feature a standby current of 50-nA and an active transmit current of 20 mA at +10 dBm, with a 10 mA receive current. Applications include automotive keyless entry, remote controls, home and building automation, security and lighting control, wireless sensor networks, and health and fitness devices.
The Si4x55 products are available in a 3 mm x 3mm QFN package, making the device is a good fit for wireless embedded applications requiring small form factors. Both chips are available in a common pin-out that enables a single board layout for both one-way and two-way link applications.
Intrigued? You can buy a development kit with the Si4355 and Si4455 daughter cards. Pre-loaded with demo code, the kits range from LED-based designs for one-way wireless connections (the EZR-LEDK1W) and bidirectional connections (the EZR-LEDK2W) to more advanced versions with the ability to display communication link details on an LCD screen (the 4010-AES1W, 4012-LCDK1W, and EZR-LCDK2W).
The Si4355 and Si4455 are sampling now, with the Si4355 starting at $0.99 in 10,000-unit quantities and the Si4455 starting at $1.19. The EZR-LEDK1W and EZR-LEDK2W kits are priced at $20 and $25, respectively. For additional information and to purchase samples and development tools, visit www.silabs.com/EZRadio.