RF Transceiver
Micrel announces the next generation RadioWire® transceiver, the MICRF505. The transceiver operates from 850 MHz to 950 MHz and supports frequency shift keyed (FSK) modulation at data-rates up to 200 kbps. Many functions are user programmable including the frequency synthesizer, making the device suitable for frequency hopping applications. The number of external components is reduced to a few capacitors, an inductor, and a crystal. Packaged in a 5 × 5mm MLF, the device is designed to accommodate low accuracy crystals. To address this, the company has added a frequency error estimator to determine frequency mismatch between communicating transceivers and an internal crystal tuning mechanism to enable automated crystal tuning on-the-fly. The device also incorporates an internal clock recovery circuit. The device features 112 dBm sensitivity.
Micrel Semiconductor
Micrel, Inc.
2180 Fortune Drive
San Jose, CA, 95131
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