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Radio transmitter IC consumes 30% less power

Posted: 16 May 2006 ?? ?Print Version ?Bookmark and Share

Keywords:MICRF405? radio transmitter IC? RadioWire? Micrel?

Micrel Inc. launched what it claims to be most power-efficient radio transmitter IC in its class. The MICRF405 is the latest in Micrel's family of RadioWire radio solutions. According to Micrel, the 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 chip is currently sampling with volume quantities available in the second quarter of 2006. Development kits are also available for all applicable frequency bands. Pricing is $1.48 for quantities of 10,000.

"Most available RF transmitters are less power-efficient forcing designers to make a tradeoff between transmission range and battery life," noted Stein Eskerud, managing director of Micrel Norway. "The new MICRF405 typically consumes 30 percent less battery power at the same transmission range as existing solutions, enabling customers to significantly increase battery life in their applications without compromising link performance."

The product features ASK/OOK and FSK modulation and covers sub-gigahertz bands (315MHz, 433MHz, 868MHz and 915MHz). The solution comes in a 4-by-4mm MLF package. The MICRF405 aims to address 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 with legacy ASK systems.

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