Radio Transceivers

( 1 Mar 2007 )

Micrel introduces the MICRF405 RF transmitter IC designed for unlicensed ISM band operations. Operating over the 290MHz to 980MHz frequency range, the MICRF405 is the latest in Micrel’s family of lowpower RadioWire radio solutions and complements the MICRF505/506 line of low-power radio transceivers. The compact, low-cost device is designed to cover all geographic regions and is targeted at high-end remote keyless entry, automatic meter reading, building automation and industrial control. The MICRF405 features the lowest power consumption in its class. It also offers both ASK/OOK and FSK modulation and covers all four sub-GHz bands (315, 433, 868 and 915MHz). Fully compliant to FCC Part 15.247 and EN300-220 requirements, the MICRF405 addresses the trend of migrating from simple ASK/OOK modulation solutions to FSK devices that feature higher output power and longer range. The chip supports this migration while retaining backwards compatibility withlegacy ASK systems. Micrel