Medical Device Link.

Originally Published EMDM March/April 2002

PRODUCT UPDATE

Nordic VLSI

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The most recent addition to a company's line of components for wireless communication, an RF transmitter is designed to operate in the US 902–928-MHz SRD frequency band. The Model nRF904 component requires only an external crystal and some resistors to make a complete transmitter based on the industry standard SO-8 package.

This component "offers a solution to customers who need a small PCB size, high-quality frequency-shift keying (FSK) modulation, and data rates up to 50 Kb/sec," says Geir Langeland, product manager for wireless communication at Nordic VLSI (Tiller, Norway). Other features of the product include amplitude-shift keying modulation, a 10-nA power-down mode, a reference clock output for microcontrollers, and adjustable output power up to 1 dBm.

The company also recently introduced a transceiver component that supports dual 315- and 433-MHz frequency bands with a PCB layout. The nRF403 transceiver requires few external components and features low power consumption, a 20-Kb/sec data rate, and standby mode. Products integrating the nRF403 transceiver can be exported to most markets worldwide without requiring a layout change, notes Langeland. It is designed primarily to work in the ISM (industrial, medical, and scientific) and SRD (short-range device) applications.

Nordic VLSI's RF components do not require Manchester encoding and incorporate a microcontroller serial interface. All products are fully tested for radio-frequency performance at the factory.

Copyright ©2002 European Medical Device Manufacturer