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3G femtocell transceivers support UMTS

Posted: 03 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:3G transceiver? femtocell base station? UMTS support?


Analog Devices Inc. has unveiled the ADF4602-1 transceiver for 3G femtocell base stations that support the UMTS wireless interface standard for home and office wireless infrastructure equipment.

The highly integrated direct conversion transceiver incorporates frequency synthesizers, filters and power management circuitry and can be coupled with ADI's AD9863 mixed-signal front-end and ADL532x and ADL554x driver amplifier families to create a complete UMTS radio. The complete design consumes 30 percent less power and delivers 50 percent better EVM (error vector magnitude) than competing devices while improving data rates and system fidelity in multiband 3G femtocell base stations.

The ADF4602-1 3G transceiver is designed for high-performance 3G femtocells providing cellular fixed mobile converged services. With a receive sensitivity of better than -113dBm, the front end includes three high-performance single-ended LNAs, allowing the device to support triband applications.

The receiver is based on a direct conversion architecture, which is a well-suited solution for highly integrated W-CDMA receivers and reduces the BOM by fully integrating all interstage filtering. The single-ended input structure also eases interface design constraints and reduces the matching components required for small footprint single-ended duplexers. The transmitter uses an innovative direct conversion modulator that achieves high modulation accuracy with exceptionally low noise, eliminating the need for external transmit SAW filters. Operating on a 3.3V supply, the ADF4602-1 transceiver typically consumes 50mA in receive mode and 50- to 100mA in transmit mode.

The ADF4602-1 3G transceiver is sampling now, with production release slated in June 2009

The transceiver qualified across temperature range of 0C to +85C available and is available in 40-pin LFCSP a for $8.80 each in 1,000 quantities.

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