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Chipset jazzes up ISM radios

Posted: 10 Jan 2008 ?? ?Print Version ?Bookmark and Share

Keywords:radio chipset? RF? Integration Associates CES?

This week at the Consumer Electronics Show (CES), Integration Associates is introducing the EZ Radio Pro chipset. Some of you may be familiar with the EZ Radio chipset, which was released several years ago. This new product line provides RF designers with a great deal more flexibility to manipulate radio performance, with 128 registers instead of 12. (Many of these have default settings for those who would like a standard product.)

"With this chip, we doubled the output power of our previous parts, up to +20dBm," said Nick Dutton, marketing director, "and we achieve this without adding any external parts that would increase the BOM." Dutton points out that the design team went with +20dBm output power in order to better support frequency-hopping applications.

The EZ Radio Pro features an integrated power amplifier, which was designed in house and optimized to work with the chipset circuitry, thereby keeping power consumption to an impressive 20mA for a +13dBm transmission. (Sleep current consumption is 10nA.)

Spanning 240 to 960MHz in 300Hz steps, the part also offers receive sensitivity of -117dBm; 10-3 BER (0.1 percent). With the antenna diversity feature, +20-dBm output power, and this level of receive sensitivity, the part boasts impressive link budget performance. Because the chipset uses an embedded algorithm instead of an external microcontroller to handle the antenna diversity feature, the microcontroller can stay in sleep mode.

Other notable features include a configurable packet handler, a built-in preamble detector with a minimum 2bytes preamble length, and an 8kHz filter bandwidth.

Available devices in the line include three transceivers (IA4432, IA4431, IA4430), a receiver (IA4330), and two transmitters (IA4231, IA4230) that support supporting OOK, FSK, and GFSK modulation techniques.

- Janine Love
RF DesignLine

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