Low-power transceiver covers US and European bands

The ADF7020-1 is a low-power, highly integrated UHF/VHF transceiver IC with a range of 135 to 650MHz operating frequency, which includes the popular 315 and 433MHz bands.

Analog Devices has extended its portfolio of leading RF ICs with the ADF7020-1 transceiver.

Designed to address the SRD (short range device) wireless connectivity applications in home and building automation, wireless video and audio, AMR (automatic wireless metering) and security applications, the ADF7020-1 is a single-chip, transceiver solution for the 135 to 650MHz frequency range with good cochannel and adjacent channel rejection.

This new RF IC will be displayed on Booth 408B/410A at European Microwave Week, from 3rd to 7th October 2005 in Paris, France.

"The introduction of the ADF7020-1 serves as a proof point to our strategy of offering customers innovative solutions designed to increase availability of low-cost wireless links", said Christian Kermarrec, Vice President, RF and Wireless Systems, Analog Devices.

"This device joins a strong portfolio of RF ICs, which when coupled with our suite of development tools, ease the design process for our customers and enable products to reach market faster".

The ADF7020-1 is a low-power, highly integrated UHF/VHF transceiver IC with a range of 135 to 650MHz operating frequency, which includes the popular 315 and 433MHz bands.

The transceiver supports datarates of 0.15 to 200Kbit/s FSK (frequency shift keying) and 0.15 to 64Kbit/s ASK (amplitude shift keying).

The device operates on a +2.3 to +3.6V power supply with programmable output power from -16 to +13dBm in 0.3dBm steps.

Its receiver sensitivity is -119dBm at 1Kbit/s FSK, -112dBm at 9.6Kbit/s FSK and -106.5dBm at 9.6Kbit/s ASK.

Current consumption is 18mA in receive mode and 27mA in transmit mode (+10dBm output).

Other features include on-chip VCO (voltage controlled oscillator), fractional-N PLL, on-chip 7bit analogue-to-digital convertor, digital received signal strength indication (RSSI) and an integrated T/R switch.

Its leakage current is less than 1uA in power down mode.

When used in conjunction with the ADIismLink protocol software provided for free with the evaluations boards, a user can quickly design and optimise a new radio link and improve time to market.

The ADF7020-1 is sampling now and will be available in production quantities in November 2005.

It is offered in a 7 x 7mm RoHS compliant LFCSP package and is priced at $1.99 per unit in quantities of 10,000.

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