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Micrel transceivers target ISM band apps

Posted: 16 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:micrel semiconductor? micrf500? micrf501? radiowire? fsk transceiver?

Micrel Semiconductor has announced the release of two new RadioWire FSK transceivers that are designed to address the needs of telemetry, security, low data-rate networks, and other ISM band applications.

The MICRF500 operates from 700MHz to 1GHz, covering the European 868MHz ISM frequency and the American 902MHz to 928MHz band. The MICRF501 ranges from 300MHz to 600MHz and covers the 433MHz European ISM band, as well as the 300MHz ISM band in the US.

The RadioWire devices provide a applications with a bidirectional link, supplementing the company's QwikRadio products that provide a single-direction RF link.

With a standby current of <1?A, the transceiver are suited for battery-powered systems. They are also able to transmit and receive FSK data at any rate between 2.4Kbps and 128Kbps. They have an output power of 10dBm and a receiver sensitivity of -105dBm.

An on-chip frequency synthesizer ensures that the transceivers can handle multichannel as well as frequency-hopping, spread-spectrum communications.

Both the MICRF500 and MICRF501 operate from a 2.5V to 3.4V voltage source and are shipped in a 44-pin LQFP housing.

They are priced at $6 each in 1,000-unit quantities.

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